All Wiring Diagrams for Lexus RX 450h 2012 model

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Lexus RX 450h 2012

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

(under center console) j/c f92
A/c amplifier assembly (right side of dash)
A/c pressure sensor (right side of engine compt)
A32
Ab1
Af3
Af4
Af8
Automatic light control sensor (top right side of dash)
Blower w/ fan motor sub-assembly (right side of dash)
Blw
Canh
Canl
Cltb
Clte
Clts
Computer data lines system
Computer data lines system defogger system
Cooler thermistor (ambient temperature sensor) (front of engine compt)
D37
Defogger system
Dfg
Dgs
Dgs1
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F13
F50
F51
F65
F66
Fdef
Fdfi
Front room temperature sensor (center of dash)
Gnd
Heater 2 fuse 7.5a
Heater fuse 10a
Heater fuse 50a
Hf1
Hot at all times
Hot in on or start
Hot w/ ig1 relay energized
Ig+
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a63 (left side of dash)
J/c f65 & f66 (top center of dash)
Lin1
Main body ecu (behind left side of dash)
Pnk
Pre
Red
S5-2
S5-3
S5-4
S5-5
Seats system
Sg-1
Sg-2
Smog ventilation sensor (if equipped) (center front of engine compt)
Solar sensor
Svdb
Svds
Svpb
Svps
Sw 1
Tam
Tsd
Tsl
Tsp
Tsr

Automatic A/C Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(front of engine compt) cooling fan motor 1
(front of engine compt) cooling fan motor 2
(left side of dash) j/c a62
(left side of dash) j/c a63
+b1
+b2
A/c amplifier assembly (right side of dash)
A/c blower assembly (right side of dash)
A/c evaporator temperature sensor
A/c w/p fuse 10a
A/c w/p relay
A70
A71
A76
A8 (left front of engine compt)
A80
Acpb
Acpe
B bus
Bus
Bus g
C11
Ca3n
Ca3p
Canh
Canl
Clk
Computer data lines system
Connector housing color (black)
Connector housing color (green)
Connector housing color (red)
Cooling fan ecu 1 (left front of engine compt)
Cooling fan ecu 2 (right front of engine compt)
D3 (top of engine)
D48
Da2
Damper servo motor (air inlet)
Damper servo motor (air mix driver side)
Damper servo motor (air mix front passenger side)
Damper servo motor (air vent mode)
Din
Dout
E.f.i. engine coolant temperature sensor (top rear of engine)
Ecm (right front of engine compt)
Ecu ig1 fuse 10a
Engine room j/b assembly (left side of engine compt)
Engine room r/b 3 (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ethw
Eti
F98
Gnd
Heater 2 fuse 7.5a
Heater water pump assembly (left side of engine compt)
Hot at all times
Hot w/ ig1 relay energized
Ig1
Inverter assembly w/ converter (left side of engine compt)
Ite
J/c a60 (left kick panel)
J/c a61 (left side of dash)
J/c a63 (left side of dash)
Pnk
Power management control ecu (left side of dash)
Rdi fan 1 fuse 40a
Rdi fan 2 fuse 40a
Rdi fan relay 1
Rdi fan relay 2
Red
Rfc
Si2
Stb
Stbi
Thw
W/ motor compressor assembly (right front of engine compt)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram (1 of 4) for Lexus RX 450h 2012

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List of elements for Anti-lock Brakes Wiring Diagram (1 of 4) for Lexus RX 450h 2012:

+b13
+bc
+bi1
A10 (right front of engine compt)
A19
A54
A90
A91
Acc
Af8
Ap2
Ap3
Brake pedal stroke sensor assembly (on brake pedal bracket)
Ca1h
Ca1l
Capacitor fuse 10a
Cbi1
Cbi2
Computer data lines system
Csw
D16
Ecu-ig1 1 fuse 10a
Ecu-ig1 2 fuse 10a
Ecu-ig2 fuse 10a
Ena
F12
F34
F35
Fail
Fl+
Fl-
Fss
Fuse box (rear of luggage compt)
Gauge 2 fuse 7.5a
Gnd
Gnd2
Gnd3
Gnd4
Gnd5
Gs2
H32
Hot at all times
Hot w/ ig1 1 relay energized
Hot w/ ig1 2 relay energized
Hot w/ ig2 relay energized
Ig1
Ig2
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c a63 (left side of dash)
J/c p65 (left "d" pillar)
Lbl
Left front speed sensor (left front hub assembly)
Nca
Out
Out1
Out2
P3 (left "c" pillar)
Pnk
Red
Rl+
Rl-
Sgsk
Skg
Skid control ecu assembly (right side of dash)
Sks
Sks1
Sks2
Stop light control relay assembly (left end of dash)
Stp
Stp1
Stp2
Stpo
Vbz
Vcsk

Anti-lock Brakes Wiring Diagram (2 of 4) for Lexus RX 450h 2012

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List of elements for Anti-lock Brakes Wiring Diagram (2 of 4) for Lexus RX 450h 2012:

(in steering column) steering sensor
(right side of dash) j/c f94
(under center floor console) yaw rate sensor assembly
A11
Bat
Brake fluid level warning switch (in brake fluid reservoir)
Canh
Canl
Combination meter assembly
Computer data lines system
Electronically controlled brake system main 1 fuse 10a
Electronically controlled brake system main 2 fuse 10a
Engine room r/b 3 (left side of engine compt)
Ess
F16
Gnd
Hot at all times
Ig+
Interior lights system
J/c a67 (behind right headlight)
J/c f92 (under center console)
J/c f93 (left side of dash)
Nca
Pnk
Red
Stop light switch assembly (on brake pedal bracket)
Vsc off switch

Anti-lock Brakes Wiring Diagram (3 of 4) for Lexus RX 450h 2012

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List of elements for Anti-lock Brakes Wiring Diagram (3 of 4) for Lexus RX 450h 2012:

A77
Ap2
Ap3
Brake stroke simulator cylinder sub assembly (left rear of engine compt)
D39
Ecu-b 1 fuse
Electronically controlled brake system main 1 fuse 50a
Electronically controlled brake system main 2 fuse 50a
Electronically controlled brake system main 3 fuse 15a
Engine room r/b assembly (on left side of engine compt)
F40
Hot at all times
Instrument panel j/b (left side of dash)
J/c p39 (left "d" pillar)
Left front door courtesy light switch (at left "b" pillar)
Left rear speed sensor (left rear hub assembly)
Nca
Pnk
Red
Right front speed sensor (right front hub assembly)
Right rear speed sensor (right rear hub assembly)
Rp1
Short connector a77 & a78 (right rear of engine a78 compt)
Skid control buzzer assembly (left end of dash)
Stop fuse 7.5a
Vbz

Anti-lock Brakes Wiring Diagram (4 of 4) for Lexus RX 450h 2012

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List of elements for Anti-lock Brakes Wiring Diagram (4 of 4) for Lexus RX 450h 2012:

(right front of engine compt) a10
+bi2
+bi4
A10 (right front of engine compt)
A82
A83
A84
A89
A9 (right front of engine compt)
A92
Ap3
Bm1
Bm2
Brake actuator assembly (right rear of engine compt)
Bs01
Bs02
Bs03
Bs1
Bs2
Cty
Electronically controlled break system mtr1 relay
Electronically controlled break system mtr2 relay
Engine room r/b 2 (left rear of engine compt)
Fla+
Fla-
Flr+
Flr-
Fr+
Fr-
Fra+
Fra-
Frr+
Frr-
Gnd
Gnd1
Gnd2
Gnd6
Gs1
Mr1
Mr2
Mtt
Nca
Pac1
Pck1
Pck2
Pfl
Pfr
Pmc1
Pmc2
Pnk
Prl
Prr
R1-
R2-
Red
Rla+
Rla-
Rlr+
Rlr-
Rr+
Rr-
Rra+
Rra-
Rrr+
Rrr-
Rrr1-
Rss
Sg1
Sg2
Sg3
Skid control ecu assembly (right side of dash)
Smc1
Smc2
Vcm
Vcm2

ANTI-THEFT

Forced Entry Wiring Diagram (1 of 5) for Lexus RX 450h 2012

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List of elements for Forced Entry Wiring Diagram (1 of 5) for Lexus RX 450h 2012:

(right "b" pillar)
Acc
Act+
Act-
Actd
Actg
Altb
Back door lock assembly (w/o power back door) (lower center of back door)
Bcty
Bzr
Canh
Canl
Computer data lines system
D dr unlock relay
D/l altb fuse 25a
D/l source relay
D12
D13
D26
D27
D35
D36
Detection unlock
Door lock relay
Dr unlock relay
Ecu-acc fuse 10a
Ecu-igi 1 fuse 10a
Exterior lights system
F1 (left kick panel)
F12
F13
F14
F22
F23
F24
F25
F37
F5 (right kick panel)
F65
F66
Flcy
Frcy
Gf1
Gnd2
H10
H23
H24
H26
H27
Haz
Hcty
Headlights system
Horn
Horns system
Hot at all times
Hot w/ acc1 relay energized
Hot w/ ig1 1 relay energized
Hrly
Hzsw
Ile
Ind
Instrument panel j/b (left side of dash)
Interior lights system
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c p40 (left "d" pillar)
Jf1
Jf2
Ko1
Lcty
Left front door lock motor (in driver's door)
Lin2
Lock key
Lsfl
Lsfr
Lswl
Lswr
Main body ecu (behind left side of dash)
Of1
Of2
P4 (left rear of luggage compt)
Pf4
Pnk
Rcty
Red
Right rear door courtesy light switch (at right rear "c" pillar)
Right rear door lock motor (in right rear door)
Trly
Ul1
Ul3
Unlock key
Yp1
Ypy1

Forced Entry Wiring Diagram (2 of 5) for Lexus RX 450h 2012

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List of elements for Forced Entry Wiring Diagram (2 of 5) for Lexus RX 450h 2012:

(center front of engine compt) engine hood courtesy switch
(center of dash) j/c g22
(left side of engine compt) wireless door lock buzzer
(top center of dash) j/c f66
D21
Detection unlock
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F5 (right kick panel)
Front power window regulator switch assembly
Gf3
Heater control panel (radio receiver assembly)
Hot at all times
If1
If2
Instrument panel j/b (left side of dash)
Ip j/b fuse 25a
J/c a63 (left side of dash)
J/c f92 (under center console)
J/c p39 (left "d" pillar)
Left front door courtesy light switch (at left "b" pillar)
Left rear door courtesy light switch (at left rear "c" pillar)
Lock
Pf1
Pnk
Red
Right front door lock motor (in front passenger's door)
Security ind
Stop fuse 7.5a
Stop light switch assembly (on brake pedal bracket)
Unlock

Forced Entry Wiring Diagram (3 of 5) for Lexus RX 450h 2012

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List of elements for Forced Entry Wiring Diagram (3 of 5) for Lexus RX 450h 2012:

+b1
+b2
12v
A80
A81
Air conditioning system
Clk
Clk+
Clk-
Computer data lines system
Cruise control system
Detection unlock
Door lock control switch
Drn2
Engine controls system
Engine room r/b 2 (left rear of engine compt)
Ep1
Ep2
Eti
Exterior lights system
Fctl
Gmt
Gmtg
Hot w/ igct main relay energized
Hsdn
Htm+
Htm-
Ig2
Ig2d
Igct 3 fuse 10a
Ilk
Ite
Iwp
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c f93 (left side of dash)
J1 (left "b" pillar)
Jf1
Jf2
Left rear door lock motor (in left rear door)
Lin1
Lp1
Mmt
Mmtg
Mrel
Mth+
Mth-
Multiplex network master switch assembly
Nca
Niwp
Nodd
Of1
Opm1
Opm2
Opst
P2 (left "b" pillar)
Pnk
Power distribution system
Power management control ecu (left side of dash)
Red
Req+
Req-
Right front door courtesy light switch (at right "b" pillar)
Rmt
Rmtg
Si1
Si2
Sio
St1-
Stb
Stp
Transmissions system
Vcp1
Vcp2
Vlo
Vpa1
Vpa2

Forced Entry Wiring Diagram (4 of 5) for Lexus RX 450h 2012

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List of elements for Forced Entry Wiring Diagram (4 of 5) for Lexus RX 450h 2012:

(left kick panel) f1
Abfs
Accd
Af5
Agnd
Am2 fuse 7.5a
Am21
Am22
Antenna coil
Anti-theft system
Bth+
Bth-
Ca1h
Ca1l
Ca2h
Ca2l
Ca3n
Ca3p
Canh
Canl
Ccs
Code
Combination meter assembly
Computer data lines system
Cruise control system
Drn4
E01
E02
E12
Ecu-b 1 fuse 10a
Electronic power steering system
Engine controls system
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ethb
F15
F16
F63
F64
F97
F98
Gnd
Hot at all times
Ig1d
Imi
Immobi fuse 7.5a
Imo
Inds
Indw
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Lin2
Nca
Pnk
Power distribution system
Power management control ecu (left side of dash)
Power switch
Psok
Red
S-horn fuse 7.5a
S-horn relay
Security horn assembly (left front of engine compt)
Sftd
Sftu
Shift interlock system
Slp
Slr+
Smrb
Smrg
Smrp
Spdi
Ss1
Ss2
Ssw1
Ssw2
Swil
Thb
Transmissions system
Txct
Vc5

Forced Entry Wiring Diagram (5 of 5) for Lexus RX 450h 2012

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List of elements for Forced Entry Wiring Diagram (5 of 5) for Lexus RX 450h 2012:

(driver's door outside handle) left electrical key antenna
(left kick panel) f1
(left side of dash) j/c f93
(under center console) front indoor electrical key oscillator
A16
A54
Agnd
Ant1
Ant2
Anti-theft system
Canh
Canl
Certification ecu assembly (right side of dash)
Cg1b
Cg2b
Cg5b
Cg6b
Cg7b
Cg8b
Clg1
Clg2
Clg3
Clg4
Clg5
Clg6
Clg7
Clg8
Clgb
Code
Computer data lines system
Cutb
D39
Data
Door control receiver (right "c" pillar)
Ecu ig2 fuse 10a
F12
F18
F40
F5 (right kick panel)
F58
F65
Gauge 2 fuse 7.5a
Gnd
Hot w/ ig2 relay energized
If1
Im1
Ind
Indoor luggage compartment electrical key oscillator (left front of luggage compt)
Instrument panel j/b (left side of dash)
J/c f65 & f66 (top center of dash) f66
J/c f92 (under center console)
J/c f94 (right side of dash)
J/c o31 (right "d" pillar)
Jf1
Jn1
Lin
Of3
Outside luggage electrical key antenna (behind center of rear bumper)
Pf4
Pnk
Pos1
Pos2
Rco
Rda
Rear indoor electrical key oscillator (front of luggage compt)
Red
Right electrical key antenna (front passenger's door outside handle)
Rssi
Sen1
Sen2
Sens
Swil
Trg+
Trunk, tailgate, fuel doors system
Tsw1
Tsw2
Tsw5
Tsw6
Txct
Vc5
Vo1

Immobilizer Wiring Diagram for Lexus RX 450h 2012

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List of elements for Immobilizer Wiring Diagram for Lexus RX 450h 2012:

A15
Certification ecu assembly (right side of dash)
Efii
Efio
Engine room r/b assembly (on left side of engine compt)
F18
F58
F98
Gnd
Hot at all times
Id code box (left side of dash)
Imi
Immobi fuse 7.5a
Imo
Instrument panel j/b (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Lin
Lin1
Lin2
Pnk
Power management control ecu (left side of dash)
Red
Steering lock actuator assembly (on steering column)

BODY CONTROL MODULES

Body Control Modules Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Body Control Modules Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

A25
Acan
Acc
Act+
Act-
Actd
Actg
Altb
Anti-theft system
Becu
Bzr
Cann
Canp
D/l alt b fuse 25a
D11
D12
D13
D26
D27
D35
D36
Dmdr
Dmon
Door locks system
Drl
Ecu- acc fuse 10a
Ecu-b 1 fuse 10a
Ecu-ig 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Exterior lights system
F14
F19
F22
F23
F24
F25
F32
F37
F40
F65
F66
Ffgo
Flcy
Frcl
Frcy
Gf3
Gnd1
Gnd2
Gsw
H23
H24
H25
H26
H27
Hcty
Hdlo
Headlights system
Horn
Horns system
Hot at all times
Hot in on or acc
Hot in on or start
Hrly
Hzsw
If1
Ile
Ind
Instrument cluster system
Instrument panel j/b (left side of dash)
Interior lights system
J/c f102 (center of dash)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Jf1
Jf2
Ko1
Left front position control ecu & switch assembly (left side of driver's seat cushion)
Left front power window regulator m0tor assembly (in driver's door)
Left outer mirror control ecu assembly (in left front door)
Left rear power window regulator motor assembly (in left rear door)
Lin
Lin 1
Lin2
Llew
Lp1
Lswl
Lswr
Main body ecu (behind left side of dash)
Multiplex network master switch assembly
Of3
Pbds
Pf1
Pf4
Pkb
Pnk
Pa1
Rcyl
Red
Right front power window regulator m0tor assembly (in front passenger's door)
Right rear power window regulator m0tor assembly (in right rear door)
Rlew
Sliding roof control ecu (center front of roof)
Tg1
Tr+
Trly
Trunk, tailgate, fuel doors system
W/ power back door
W/o power back door
Wiper/washer system

Body Control Modules Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Body Control Modules Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(at base of steering column) multiplex tilt & telescopic ecu
(behind right side of dash) tire pressure warning ecu
(in right front door) right outer mirror control ecu assembly
(left "d" pillar) j/c p66
(left rear of roof) power back door unit assembly
(right kick panel) j/c f103
A76
A90
Af10
Air bag sensor assembly (below center console)
Bcty
Ca1h
Ca1l
Canh
Canl
Cann
Canp
Certification ecu assembly (right side of dash)
Cltb
Clte
Clts
Combination meter assembly
Cspt
Dim
Dlc3 (under left side of dash)
Door locks system
Ecm (right front of engine compt)
Exterior lights system
F12
F13
F16
F29
F58
F98
Ffog
Flcl
Gf2
Haz
Head
Headlights system
If2
Interior lights system
J/c f70 (left side of dash)
J/c f71 (right side of dash)
Lcty
Lcyl
Lsfl
Lsfr
Main body ecu (behind left side of dash)
Navigation receiver assembly
Pf1
Pnk
Power management control ecu (left side of dash)
Power steering ecu assembly (left end of dash)
Rcty
Red
Skid control ecu assembly (right side of dash)
Steering sensor (in steering column)
Tail
Ul1
Ul3
W/ power back door
W/o power back door
Yaw rate sensor assembly (under center floor console)

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram (1 of 3) for Lexus RX 450h 2012

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List of elements for Computer Data Lines Wiring Diagram (1 of 3) for Lexus RX 450h 2012:

(left side of engine compt) j/c a57 & d41
A/c amplifier (right side of dash)
A52
A57
A76
A90
A91
Af10
Af3
Af8
Af9
Air bag sensor assembly (below center console)
Bat
Ca1h
Ca1l
Ca2h
Ca2l
Ca3n
Ca3p
Can+
Can-
Canh
Canl
Cann
Canp
Certification ecu assembly (right side of dash)
D27
D3 (top of engine)
D41
Dcm (telematics transceiver) (under center console)
Dia
Dlc3 (data link connector) (under left side of dash)
Ecm (right front of engine compt)
F13
F29
F50
F58
F97
F98
Fg1
G25
H25
Headlight swivel ecu assembly (left end of dash)
Hot at all times
Init
Instrument panel j/b (left side of dash)
J/c f102 (center of dash)
J/c f70 (left side of dash)
J/c f71 (right side of dash)
J/c f72 (right side of dash)
J/c f94 (right side of dash)
Jf1
Left front position control ecu & switch assembly a8 (left side of driver's seat cushion)
Left outer mirror control ecu assembly (in left j3 front door)
Lin
Lin 1
Lin 2
Lin2
Lvl
Main body ecu
Obd fuse 7.5a
Occupant detection ecu (under front passenger's seat)
Of3
Oz2
Pf1
Pf4
Pnk
Power management control ecu (left side of dash)
Pa1
Red
Sil
Skid control ecu (right side of dash)
W/ power back door
W/o power back door

Computer Data Lines Wiring Diagram (2 of 3) for Lexus RX 450h 2012

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List of elements for Computer Data Lines Wiring Diagram (2 of 3) for Lexus RX 450h 2012:

(at base of steering column) multiplex tilt & telescopic ecu
(behind right side of dash) tire pressure warning ecu
(in right front door) right outer mirror control ecu assembly
(left "d" pillar) j/c p66
(right kick panel) j/c f103
A56
Ac1
Af5
Af9
Ca2h
Ca2l
Canh
Canl
Cann
Canp
Clearance warning ecu assembly (right side of dash)
Combination meter assembly
Driving support ecu assembly (left end of dash)
F16
F56
If2
J/c f67
J/c f68 (left side of dash)
Left rear power window regulator motor assembly (in left rear door)
Lin
Lp1
Pf1
Pnk
Power back door unit assembly (left rear of roof)
Power steering ecu assembly (left end of dash)
Red
Seat belt control ecu (right side of dash)
Steering sensor (in steering column)
Suspension control ecu (right side of dash)
W/ navigation
W/ power back door
W/o navigation
W/o power back door
Yaw rate sensor assembly (under center floor console)

Computer Data Lines Wiring Diagram (3 of 3) for Lexus RX 450h 2012

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List of elements for Computer Data Lines Wiring Diagram (3 of 3) for Lexus RX 450h 2012:

(center front of roof) sliding roof control ecu
(in driver's door) left front power window regulator motor assembly
(in front passenger's door) right front power window regulator motor assembly
(in right rear door) right rear power window regulator motor assembly
(left side of dash) id code box
(left side of dash) j/c f93
(on steering column) steering lock actuator assembly
(w/o navigation) radio receiver assembly
Atx+
Atx-
Canh
Canl
F54
G11
G24
Gf1
Gf2
Gf3
Heater control panel (radio receiver assembly)
Hf2
If1
J/c f92 (under center console)
J/c p55 & p56 (left rear of vehicle)
J/c p65 (left "d" pillar)
Jf2
Ko1
Lin
Lin 1
Lin1
Meter mirror sub-assembly (left side of dash)
Mpx1
Mpx2
Multi information display assembly
Multi-display assembly
Multi-media interface ecu (under rear of center console)
Multiplex network master switch assembly
Navigation receiver assembly
O33
Of3
Og1
P3 (left "c" pillar)
P55
P56
Parking assist ecu (right side of dash)
Pf2
Pnk
Red
St-plug
Stereo component amplifier (luggage compt)
Tg1
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Txm+
Txm-
U10
Ug1
W/ multi-media interface ecu
W/ navigation
W/o multi-media interface ecu
W/o navigation

COOLING FAN

Cooling Fan Wiring Diagram for Lexus RX 450h 2012

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List of elements for Cooling Fan Wiring Diagram for Lexus RX 450h 2012:

(front of engine compt) cooling fan motor 1
(front of engine compt) cooling fan motor 2
(left side of dash) j/c a62
(left side of dash) j/c a63
(left side of engine compt) engine room r/b 3
+b1
+b2
A/c amplifier assembly (right side of dash)
A/c pressure sensor (right side of engine compt)
A70
A71
A76
A8 (left front of engine compt)
Af3
Af8
Canh
Canl
Computer data lines system
Cooling fan ecu 1 (left front of engine compt)
Cooling fan ecu 2 (right front of engine compt)
E.f.i. engine coolant temperature sensor (top rear of engine)
Ecm (right front of engine compt)
Ecu ig1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Ethw
F50
Hot at all times
Hot w/ ig1 relay energized
J/c a60 (left kick panel)
J/c a61 (left side of dash)
Pnk
Pre
Rdi fan 1 fuse 40a
Rdi fan 2 fuse 40a
Rdi fan relay 1
Rdi fan relay 2
Red
Rfc
S5-3
Sg-2
Si2
Thw

CRUISE CONTROL

Cruise Control Wiring Diagram, with Dynamic Radar Controls (1 of 2) for Lexus RX 450h 2012

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List of elements for Cruise Control Wiring Diagram, with Dynamic Radar Controls (1 of 2) for Lexus RX 450h 2012:

+b2
A76
A81
A89
A90
A91
A92
Accelerator position sensor (on accelerator pedal assembly)
Af10
Ap2
Ap3
Ca2h
Ca2l
Canh
Canl
Chk
Combination meter assembly
Computer data lines system
D2 (top rear of engine)
Da2
Drn2
Ecm (right front of engine compt)
Efi main fuse 30a
Efi main relay
Engine room r/b 2 (left rear of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ep1
Ep2
Eta
F16
Fl+
Fl-
Fr+
Fr-
Fss
Ge01
Gs1
Gs2
Hot at all times
Hv r/b 1 fuse 30a
Igct 3 fuse 10a
Igct main relay
J/c a59 (left side of dash)
J/c a62 (left side of dash)
J/c a63 (left side of dash)
Left front speed sensor (left front hub assembly)
Left rear speed sensor (left rear hub assembly)
Mrel
Nca
Pnk
Power management control ecu (left side of dash)
Red
Right front speed sensor (right front hub assembly)
Right rear speed sensor (right rear hub assembly)
Rl+
Rl-
Rp1
Rr+
Rr-
Rss
Shift lever position sensor (on transmission)
Skid control ecu (right side of dash)
St1-
Stop fuse 7.5a
Stp1
Stp2
Stpo
Throttle w/ motor body (right rear of engine)
Vcp1
Vcp2
Vcta
Vpa1
Vpa2
Vta
Vta1
Vta2

Cruise Control Wiring Diagram, with Dynamic Radar Controls (2 of 2) for Lexus RX 450h 2012

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List of elements for Cruise Control Wiring Diagram, with Dynamic Radar Controls (2 of 2) for Lexus RX 450h 2012:

+res
-set
Ab1
Ac1
Acc
Af2
Af3
Af8
Ca2h
Ca2l
Cancel
Cchg
Ccs
Computer data lines system
Cruise control main switch assembly
Cruise control switch
Distance control
Driving support ecu assembly (left end of dash)
Ecu ig1 fuse 10a
Ecu ig2 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F30
F34
F35
F40
Gnd
Hot w/ ig1 relay energized
Hot w/ ig2 relay energized
Igb
Instrument panel j/b assembly (left side of dash)
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c a63 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Lrdd
Lrrd
Millimeter wave radar sensor assembly (center front of engine compt)
Mode
On-off
Out
Pnk
Red
Right steering pad switch
Sgnd
Spiral cable sub- assembly (in steering column)
St1-
Steering pad switch assembly
Stop light control relay assembly (left end of dash)
Stop light switch assembly (on brake pedal bracket)
Stp
Stp-
Wip2
Wiper/washer system

Cruise Control Wiring Diagram, without Dynamic Radar Controls (1 of 2) for Lexus RX 450h 2012

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List of elements for Cruise Control Wiring Diagram, without Dynamic Radar Controls (1 of 2) for Lexus RX 450h 2012:

+b2
+res
-set
A76
A81
Accelerator position sensor (on accelerator pedal assembly)
Af10
Ca2h
Ca2l
Cancel
Canh
Canl
Ccs
Chk
Combination meter assembly
Computer data lines system
Cruise control main switch assembly
Cruise control switch
D2 (top rear of engine)
Da2
Drn2
Ecm (right front of engine compt)
Efi main fuse 30a
Efi main relay
Engine room r/b 2 (left rear of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ep1
Ep2
Eta
F16
F40
F98
Ge01
Hot at all times
Hv r/b 1 fuse 30a
Igct 3 fuse 10a
Igct main relay
J/c a59 (left side of dash)
J/c a62 (left side of dash)
J/c a63 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Mrel
Nca
On-off
Pnk
Power management control ecu (left side of dash)
Red
Shift lever position sensor (on transmission)
Spiral cable sub- assembly (in steering column)
St1-
Stop fuse 7.5a
Throttle w/ motor body (right rear of engine)
Vcp1
Vcp2
Vcta
Vpa1
Vpa2
Vta
Vta1
Vta2

Cruise Control Wiring Diagram, without Dynamic Radar Controls (2 of 2) for Lexus RX 450h 2012

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List of elements for Cruise Control Wiring Diagram, without Dynamic Radar Controls (2 of 2) for Lexus RX 450h 2012:

A89
A90
A91
A92
Acc
Ap2
Ap3
Ca2h
Ca2l
Computer data lines system
Ecu ig2 fuse 10a
F30
F34
F35
Fl+
Fl-
Fr+
Fr-
Fss
Gnd
Gs1
Gs2
Hot w/ ig2 relay energized
Instrument panel j/b assembly (left side of dash)
J/c a61 (left side of dash)
J/c a63 (left side of dash)
Left front speed sensor (left front hub assembly)
Left rear speed sensor (left rear hub assembly)
Nca
Out
Red
Right front speed sensor (right front hub assembly)
Right rear speed sensor (right rear hub assembly)
Rl+
Rl-
Rp1
Rr+
Rr-
Rss
Skid control ecu (right side of dash)
Stop light control relay assembly (left end of dash)
Stop light switch assembly (on brake pedal bracket)
Stp
Stp1
Stp2
Stpo

DEFOGGERS

Front Deicer Wiring Diagram for Lexus RX 450h 2012

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List of elements for Front Deicer Wiring Diagram for Lexus RX 450h 2012:

(left side of dash) j/c a61
(w/ navigation) deicer switch front wiper
A/c amplifier (right side of dash)
A32
Af3
Deicer fuse 25a
Deicer relay
Engine room r/b assembly (on left side of engine compt)
F50
F51
Fdef
Fdfi
Front wiper deicer (windshield glass) (left rear of engine compt)
Front wiper switch (w/o navigation)
Heater 2 fuse 7.5a
Heater fuse 10a
Hot at all times
Hot w/ ig1 2 relay energized
Hot w/ ig1 relay energized
Ig+
Instrument panel j/b (left side of dash)
Interior lights system
J/c a58 (behind left headlight)
Pnk
Red
Sw 1

Rear Defogger & Heated Mirrors Wiring Diagram for Lexus RX 450h 2012

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List of elements for Rear Defogger & Heated Mirrors Wiring Diagram for Lexus RX 450h 2012:

(left "d" pillar) noise filter (rear window defogger)
A/c amplifier (right side of dash)
A11
A14
Af3
Ap1
Bdr
C10
C17
C18
Canh
Canl
Cann
Canp
Computer data lines system
Def+
Def-
Dfg
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
F5 (right kick panel)
F50
Fl door fuse 25a
Fr door fuse 25a
Gnd
Heater 2 fuse 7.5a
Heater control panel (radio receiver assembly)
Hot at all times
Hot w/ ig1 relay energized
Htr+
Htr-
If1
If2
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a63 (left side of dash)
J/c y23 (left side of back door)
J1 (left "b" pillar)
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
P64
Pnk
Rear window defogger
Rear window defogger switch
Red
Right outer mirror control ecu assembly (in right front door)
Right outer rear view mirror assembly (on right front door)
Rr def fuse 50a
Rr def relay
Tx+
Tx-
Y16
Yp3

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Lexus RX 450h 2012

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List of elements for Electronic Power Steering Wiring Diagram for Lexus RX 450h 2012:

A54
A90
Asst
Ca1h
Ca1l
Can1l
Canh
Canl
Cbp
Cbpe
Cep
Cepf
Combination meter assembly
Computer data lines system
D15
D38
Ddok
Ecu-b 2 fuse 7.5a
Ecu-ig1 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Eps fuse 80a
F10
F100
F101
F11
F16
F2 (left end of dash)
F98
Fusible link block\ assembly (left rear of luggage compt)
Gauge 2 fuse 7.5a
Hot at all times
Hot in on or start
Hv battery junction block assembly (left side of luggage compt)
Ig+
Instrument panel j/b (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Motor resolver
Nca
Pgnd
Pig
Pnk
Power management control ecu (left side of dash)
Power steering converter assembly
Power steering ecu assembly (left end of dash)
Power steering motor
Power steering motor assembly (integral to power steering ecu assembly)
Power steering torque sensor (integral to power steering ecu assembly)
Psok
Rcos
Red
Rgnd
Rout
Rsin z10
Skid control ecu (right side of dash)
Steering sensor (in steering column)
Torque sensor
Trq1
Trq2
Trqg
Trqv
Vgnd
Vot1
Wdd1
G1 (under center floor console)
G19
Z11
Z12

Power Tilt Steering Column Wiring Diagram for Lexus RX 450h 2012

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List of elements for Power Tilt Steering Column Wiring Diagram for Lexus RX 450h 2012:

Cann
Canp
Computer data lines system
D30
D39
Ecu-b 1 fuse 10a
Ecu-ig1 1 fuse 10a
Ecub
Engine room r/b assembly (on left side of engine compt)
F35
F38
F40
Gnd
Headlight dimmer switch assembly
Hot at all times
Hot in on or start
Instrument panel j/b (left side of dash)
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
Msw
Multiplex tilt & telescopic ecu (at base of steering column)
Pnk
Power tilt motor (on steering column)
Red
Telesco short
Telesco stretch
Telescopic motor
Telescopic sensor
Tem+
Tem-
Tes
Ti & te fuse 30a
Tilt & telescopic switch
Tilt down
Tilt up
Tim+
Tim-
Tis
Vce
Vci

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

(behind right headlight)
A11
A55
A56
Af9
Air sus fuse 20a
Ao2
Ap1
Bat
Canh
Canl
Computer data lines system
Dnsw
Down
Ecu ig1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Gnd
Headlight swivel ecu assembly (w/ adaptive front lighting system) (left end of dash)
Height control off switch
Height control valve harness assembly
Hot at all times
Hot in run or start
Ill+
Ill-
Instrument panel j/b (left side of dash)
Interior lights system
J/c a62 (left side of dash)
J/c a67
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c o30 (right "d" pillar)
J/c o31 (right "d" pillar)
Ldns
Left front height control sensor sub-assembly (left side of engine compt)
Lups
P24
P5 (right rear of luggage compt)
Pnk
Red
Right front height control sensor sub-assembly (right side of engine compt)
Rm+
Rm-
Sbr
Sgb2
Sgh5
Sgr
Shb
Shb1
Shb5
Shf2
Shfl
Shfr
Shg
Shg1
Shg2
Shrl
Slrl
Slrr
Suspension control ecu (right side of dash)
Suspension control switch
Suspension control switch 2
Upsw

Electronic Suspension Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(left front corner of engine compt) height control valve sub assembly 1
(right kick panel)
(under right rear of vehicle) height control valve sub assembly 2
A11
A54
A64
A65
Af5
Air sus fuse 50a
Air sus relay
Ao2
Ap2
Canh
Canl
Combination meter assembly
Computer data lines system
Engine room r/b assembly (on left side of engine compt)
F16
Hot at all times
J/c a63 (left side of dash)
J/c a67 (behind right headlight)
J/c o30 (right "d" pillar)
J/c o31 (right "d" pillar)
Left rear height control sensor sub-assembly (at left rear suspension)
Lh+
Pf2
Pneumatic w/ tube tank assembly (near right "b" pillar)
Pnk
Qo1
Red
Rh+
Right rear height control sensor sub-assembly (at right rear suspension)
Rp1
Shb
Shb3
Shb4
Shg
Shg3
Shg4
Short connector a64 & a65
Shr2
Shrl
Shrr
Slex
Slfl
Slfr
Sllo
Suspension control ecu (right side of dash)

ENGINE PERFORMANCE

3.5L HYBRID

3.5L Hybrid, Engine Performance Wiring Diagram (1 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (1 of 10) for Lexus RX 450h 2012:

+b2
A/f fuse 20a
A/f relay
A11
A76
Af5
Ap3
Batt
C/opn relay
Can+
Can-
Canh
Canister pressure sensor
Canister pump module (under left side of vehicle chassis)
Canl
Ccv2
Computer data lines system
Cooling fans system
D3 (top of engine)
Da1
Da2
Ecm (right front of engine compt)
Ecu ig2 fuse 10a
Efi 2 fuse 10a
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Eppm
F/pmp fuse 15a
F12
F30
Fpr
Fuel tank pressure sensor (in fuel tank)
Go1
Go2
Hot at all times
Hot w/ ig2 relay energized
Igsw
Instrument panel j/b (left side of dash)
J/c a59 (left side of dash)
J/c a60 (left kick panel)
J/c a62 (left side of dash)
J/c a67 (behind right headlight)
J/c p39 (left "d" pillar)
Leak detection pump
Mpmp
Mrel
Pf5
Pnk
Ppmp
Ptnk
Red
Rfc
Vcpp
Vent valve
Vpmp
Vsv (fuel vapor-containment valve) (under left rear of vehicle)
Jp2

3.5L Hybrid, Engine Performance Wiring Diagram (2 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (2 of 10) for Lexus RX 450h 2012:

(left front of engine compt) oil motor pump assembly
Ap2
D45
Efi 1 fuse 10a
Efi main fuse 30a
Efi main relay
Engine room r/b 3 (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
F/pmp relay
Front motor generator 1 (left front of engine compt)
Fuel pump & fuel sender (top of fuel tank)
Fuel pump resistor (right rear of engine compt)
Gcs
Gcsg
Gmt
Gmtg
Grf
Grfg
Gsn
Gsng
Hot at all times
Instrument cluster system
J/c a58 (behind left headlight)
J/c a63 (left side of dash)
J/c p38 (left "d" pillar)
Nca
Oil pmp fuse 10a
Oil pmp relay
Opg
Opm1
Opst
P3 (left "c" pillar)
Pnk
Red
Jp1
Z35

3.5L Hybrid, Engine Performance Wiring Diagram (3 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (3 of 10) for Lexus RX 450h 2012:

(left side of engine compt) inverter assembly w/converter
Amd
Cbi
Cei
D44
D46 mcsg
D47 mmt
Da1
Dcdc fuse 150a
Drn6
Engine room r/b assembly (on left side of engine compt)
Front motor generator 2 (left front of engine compt)
Gcs
Gcsg
Grf
Grfg
Gsn
Gsng
Hot at all times
Mcs
Mcsg
Mmtg
Mrf
Mrfg
Msn
Msng
Nca
Pnk
R-u
R-v
R-w
Rcs
Rcsg
Rear traction transaxle motor generator (at rear axle)
Red
Rmt
Rmtg
Rrf
Rrfg
Rsn
Rsng
G10
G11
Ga1
Z36
Z37 u
Z38

3.5L Hybrid, Engine Performance Wiring Diagram (4 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (4 of 10) for Lexus RX 450h 2012:

(behind left headlight) j/c a58
(left "c" pillar) p3
(left side of engine compt) inverter assembly w/converter
+b1
+b2
A79
A80
A81
Ap3
Ca2h
Ca2l
Ccs
Clk+
Clk-
Cruise control system
Da1
Dcdc-s fuse 7.5a
Drn1
Drn2
Drn3
Drn4
Drn5
Drn7
Drn8
Ep1
Ep2
F97
F98
Fuse box (rear of luggage compt)
Gmt
Gmtg
Gnd
Gnd1
Gnd2
Hot at all times
Hsdn
Htm+
Htm-
Igct
Ilk
Ilki
Ilko
Interlock switch
J/c p65 (left "d" pillar)
Lines system computer data
Mmt
Mmtg
Mth+
Mth-
Nca
Nodd
Opm1
Opm2
Pf5
Pnk
Post
Power management control ecu (left side of dash)
Pz1
Rcs
Rcsg
Red
Req+
Req-
Rmt
Rmtg
Rrf
Rrfg
Rsgn
Rsn
Smrp
Vcp1
Vcp2
Vlo
Vpa1
Vpa2
Ga2

3.5L Hybrid, Engine Performance Wiring Diagram (5 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (5 of 10) for Lexus RX 450h 2012:

(left side of dash) instrument panel j/b
(right side of dash) j/c f94
Accelerator position sensor (on accelerator pedal assembly)
Af10
Canh
Canl
Chk
Combination meter assembly
Computer data lines system
D39
Da2
Ecu-b 1 fuse 10a
Engine room r/b 2 (left rear of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ep1
Ep2
F15
F16
F40
Hot at all times
Hv r/b 1 fuse 30a
Igct 2 fuse 10a
Igct 3 fuse 10a
Igct main relay
J/c a62 (left side of dash)
J/c a63 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Pcu fuse 15a
Pnk
Red
Shift lever position sensor (on transmission)
Transmission control switch (under front of center console)
Vcp1
Vcp2
Vpa1
Vpa2

3.5L Hybrid, Engine Performance Wiring Diagram (6 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (6 of 10) for Lexus RX 450h 2012:

(left "c" pillar) p3
(left rear of vehicle) j/c p45
(left side of dash) j/c f93
(on brake pedal bracket) stop light switch assembly
A80
A81
Ac1
Ap2
Ap3
Batt fan fuse 15a
Batt fan relay
Battery thermometer sensor (left rear of vehicle)
Bth+
Bth-
Ca2h
Ca2l
Center battery cooling blower motor (near hv battery)
Computer data lines system
D31
Driving support ecu assembly (w/ dynamic radar cruise control) (left end of dash)
Drn4
Ecu ig1 1 fuse 10a
Engine room r/b 3 (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ethb
F97
F98
Fctl
Gnd0
Gnd1
Hot at all times
Hot w/ ig1 1 relay energized
Ig0
Ig1
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c p65 (left "d" pillar)
Left battery cooling blower motor (near hv battery)
Mrel
Nca
Pf5
Pnk
Power management control ecu (left side of dash)
Psok
Pz1
Red
Right battery cooling blower motor (near hv battery)
Setu
Sftd
Si0
Si1
Si2
Smrb
Smrg
Spdi
St1-
Stop fuse 7.5a
Stp-
Thb
Vm0
Vm1

3.5L Hybrid, Engine Performance Wiring Diagram (7 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (7 of 10) for Lexus RX 450h 2012:

(left "c" pillar) p3
Ap3
Battery voltage sensor (under rear seat, on hybrid vehicle battery) z29
Bth+
Bth-
Busber module center
Cbp
Cep
Current sensor
Dook
F101
Fuse 15a
Gb0
Gb1
Gb2
Gb3
Gb4
Gb5
Gbb0
Gbbo
Gib
Gnd
Hv battery
Hv battery junction block assembly (left side of luggage compt)
Hybrid vehicle battery
Igct
J/c p65 (left "d" pillar)
Lh busber module
Nca
Pnk
Pnk vb11
Power steering converter assembly
Pz1
Red
Red vb14
Red vb7
Rh busber module
Service plug
Smr1
Smr2
Smr3
Tb0
Tb1
Tb2
Tb3
Tb4
Tb5
Vb1
Vb10
Vb11
Vb12
Vb13
Vb14
Vb15
Vb2
Vb3
Vb4
Vb5
Vb6
Vb7
Vb8
Vb9
Vib
Vm1
Vm2
Vmo
Z27
Z18
Z19
Z22
Z23
Z25
Z26
Z29
Z30
Z31
Z32
Z33
Z34

3.5L Hybrid, Engine Performance Wiring Diagram (8 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (8 of 10) for Lexus RX 450h 2012:

(top left side of engine) noise filter (ignition bank 2)
(top of left valve cover) ignition coil assembly 2
(top of left valve cover) ignition coil assembly 4
(top of left valve cover) ignition coil assembly 6
(top of right valve cover) ignition coil assembly 1
(top of right valve cover) ignition coil assembly 3
(top of right valve cover) ignition coil assembly 5
(top right side of engine) noise filter (ignition bank 1)
Crank position sensor (left front of engine)
D2 (top rear of engine)
D3 (top of engine)
Db1
E.f.i vacuum sensor (right front of engine)
Gnd
Igf
Igt1
Igt2
Igt3
Igt4
Igt5
Igt6
Knock control sensor (bank 2) (top of engine, under intake manifold)
Nca
Pim
Pnk
Red
Throttle w/ motor body (right rear of engine)
Vta
Vta2
Vvl+
Vvl-
Vvr+
Vvr-
Vvt sensor (bank 1 intake side) (front of right cylinder bank)
Vvt sensor (bank 2 intake side) (front of left cylinder bank)

3.5L Hybrid, Engine Performance Wiring Diagram (9 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (9 of 10) for Lexus RX 450h 2012:

(left side of engine compt) j/c a57 & d41
A1a+
A1a-
A2a+
A2a-
A57
D41
Da1
E2g
Ecm (right front of engine compt)
Ekn2
Eknk
Engine room r/b assembly (on left side of engine compt)
Epim
Eta
Etcs fuse 10a
Etha
Ethw
Ex1b
Ex2b
Fuel injectors assembly (injectors 1, 3 & 5: right side of intake manifold) (injectors 2, 4 & 6: left side of intake manifold)
Ge01
Hot at all times
Hot w/ ig2 relay energized
Ign fuse 10a
Igt1
Igt2
Igt3
Igt4
Igt5
Igt6
Knk1
Knk2
Nca
Ne+
Ne-
Ox1b
Ox2b
Pim
Pnk
Prg
Red
Tha
Thw
Vcta
Vcv1
Vcv2
Vpim
Vta1
Vta2
Vv1+
Vv1-
Vv2+
Vv2-

3.5L Hybrid, Engine Performance Wiring Diagram (10 of 10) for Lexus RX 450h 2012

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List of elements for 3.5L Hybrid, Engine Performance Wiring Diagram (10 of 10) for Lexus RX 450h 2012:

(front of left cylinder bank) cam timing oil control valve (bank 2 intake side)
(front of right cylinder bank) cam timing oil control valve (bank 1 intake side)
(in left exhaust manifold) air fuel ratio sensor (bank 2 sensor 1)
(in left exhaust) oxygen sensor (bank 2 sensor 2)
(in right exhaust manifold) air fuel ratio sensor (bank 1 sensor 1)
(right front of engine) egr valve assembly
(top of engine) d3
+b1
+b2
+bm
A1a+
A1a-
A2a+
A2a-
Af2
D1 (left rear of engine)
D3 (top of engine)
Da1
Da2
Db1
E.f.i engine coolant temperature sensor (top rear of engine)
E01
E02
E03
E04
E05
E2g
Ecm (right front of engine compt)
Egr1
Egr2
Egr3
Egr4
Fs2
Ha1a
Ha2a
Ht1b
Ht2b
Igf1
Intake mass air flow meter (left rear of engine compt)
Knock control sensor (bank 1) (top of engine, under intake manifold)
Me01
Nca
Oc1+
Oc1-
Oc2+
Oc2-
Ox1b
Ox2b
Oxygen sensor (bank 1 sensor 2) (in exhaust)
Pnk
Purge vsv (left rear of engine)
Red
The

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Lexus RX 450h 2012

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List of elements for Backup Lamps Wiring Diagram for Lexus RX 450h 2012:

A80
A81
Ap2
Backup
Bk/up lp fuse 7.5a
Bk/up lp relay
Da2
Engine room r/b 2 (left rear of engine compt)
Engine room r/b assembly (on left side of engine compt)
Hot in on or start
Hot w/ igct main relay energized
Igct 3 fuse 10a
J/c a62 (left side of dash)
J/c a63 (left side of dash)
J/c p36 (left rear of vehicle)
J/c y21 (right side of back door)
J/c y22 (left side of back door)
J/c y23 (left side of back door)
Left rear light assembly
Pnk
Power management control ecu (left side of dash)
Red
Right rear light assembly
Shift lever position sensor (on transmission)
Y20
Yp1

Exterior Lamps Wiring Diagram (1 of 3) for Lexus RX 450h 2012

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List of elements for Exterior Lamps Wiring Diagram (1 of 3) for Lexus RX 450h 2012:

(center of dash) j/c g22
(right side of back door) j/c y21
Acc
Air conditioning system
Altb
Automatic light control sensor (top right side of dash)
Bcty
Canh
Canl
Center stop light assembly
Cltb
Clte
Clts
Computer data lines system
D/l altb fuse 25a
D17
D18
D26
D32
Dcdc fuse 150a
Def
Ecu-acc fuse 10a
Ecu-igi 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F12
F13
F14
F39
F65
F66
Flcy
Frcy
Gf3
Gnd
Gnd2
H26
H28
Haz
Head
Hf1
Hmsl
Hot at all times
Hot in on or acc
Hot in on or start
Hzsw
Instrument panel j/b (left side of dash)
Interior lights system
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c o31 (right "d" pillar)
J/c p37 (left rear of vehicle)
J/c p38 (left "d" pillar)
J/c y23 (left side of back door)
Jf2
Lcty
Left license plate light assembly
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
Left rear combination light assembly
Left rear side marker light assembly
Main body ecu (behind left side of dash)
Nca
Noise filter (center stop light assembly) (left "d" pillar)
Op2
P20
P21
P25
P26
P3 (left "c" pillar)
P31
P62
P63
Rcty
Red
Right license plate light assembly
Right rear combination light assembly
Right rear side marker light assembly
Stp-
Tail
Tail fuse 10a
Tail relay
Trly
Trn+
Trn-
Trni
Tsl
Tsr
Turn
Vo1
Wp1
Yp1
Yh1

Exterior Lamps Wiring Diagram (2 of 3) for Lexus RX 450h 2012

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List of elements for Exterior Lamps Wiring Diagram (2 of 3) for Lexus RX 450h 2012:

(behind left side of dash) turn signal flasher assembly
(left side of dash) j/c f63 & f64
(right side of back door) j/c y21
Af5
Ap2
Auto
Canada
Cob1
Cos1
Coz1
Ctla
Ctlb
Ctls
Ctrs
Drl off
F63
F64
Gf2
Gi1
Haz
Hazard warning signal switch assembly
Head
Headlight dimmer switch assembly
Interior lights system
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c g21 (center of dash)
J/c p39 & p40 (left "d" pillar)
J/c y23 (left side of back door)
Left rear light assembly
Light control
Off
Off lh
P39
P4 (left rear of luggage compt)
P40
P5 (right rear of luggage compt)
Pnk
Red
Right rear light assembly
Switch
Tail
Towing converter (right side of luggage compt)
Trailer hitch (under left end of rear bumper)
Trnl
Trnr
Ttla
Ttls
Ttrs
Turn switch
Twz1
Usa
Wp1
Y19

Exterior Lamps Wiring Diagram (3 of 3) for Lexus RX 450h 2012

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List of elements for Exterior Lamps Wiring Diagram (3 of 3) for Lexus RX 450h 2012:

(left side of dash) j/c f93
(on brake pedal assembly) stop light switch assembly
(under center console) j/c f92
A11
A17
A22
A23
A25
A30
A31
A4 (left front of engine compt)
A54
A66
A68
A81
A90
A91
Ac1
Acc
Af5
Ca1h
Ca1l
Canh
Canl
Combination meter assembly
Computer data lines system
Cra+
D19
D33
D34
Driving support ecu assembly (left end of dash)
Engine room r/b assembly (on left side of engine compt)
F15
F16
F34
F35
Gauge 1 fuse 10a
Gauge 2 fuse 7.5a
Gnd
H19
H33
Haz fuse 15a
Hid & halogen type
Hot at all times
Hot in on or start
If1
Ig+
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a63 (left side of dash)
J/c a67 (behind right headlight)
J/c f94 (right side of dash)
Led type
Left headlight assembly
Marker side
Out
Parking light
Pnk
Power management control ecu (left side of dash)
Red
Right headlight assembly
Right outer mirror control ecu assembly (in right front door)
Right outer rear view mirror assembly (on right front door)
Shift lock control ecu sub-assembly (under center console, beside shift lever)
Skid control ecu (right side of dash)
Stop fuse 7.5a
Stop light control relay assembly (left end of dash)
Stp
Stp-
Stp1
Stp2
Stpo
Towing fuse 30a
Trn+
Trn-
Trni
Turn
W/ dynamic radar cruise control

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus RX 450h 2012

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List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus RX 450h 2012:

(left rear of engine compt) engine room r/b 2
(left side of engine compt) engine room j/b assembly
(left side of engine compt) engine room r/b 3
(w/o power back door) back door lock assembly
A1 (left front of engine compt)
A10 (right front of engine compt)
A17
A18
A19
A2 (left front of engine compt)
A20
A22
A23
A4 (left front of engine compt)
A5 (right front of engine compt)
A6 (left end of dash)
A66
A7 (left end of dash)
A79
A83
A84
A86
A89
A9 (right front of engine compt)
A90
Ab1
Air sus relay
Bk/up lp relay
Brake actuator assembly
C17
Diode
Efi main relay
Engine hood courtesy switch
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Front wiper deicer (windshield glass)
Halogen type
Heater water pump assembly
Height control valve harness assembly
Height control valve sub assembly 1
Hid & halogen type
Hid type
Ig1 relay
Ig2 relay
Igct main relay
Inverter assembly w/ converter
Inverter water pump motor assembly
J/c a58
J/c a63
Led type
Left fog light assembly
Left headlight assembly
Oil motor pump assembly
Oil pump relay
P24
P4 (left rear of luggage compt)
P5 (right rear of luggage compt)
Pnk
Power back door unit assembly
Rdi fan relay 1
Rdi fan relay 2
Right headlight assembly
Rr def relay
Skid control ecu assembly
Smog ventilation sensor
Stop light control relay assembly
Towing converter
Trailer hitch
Windshield wiper motor assembly
Wireless door lock buzzer
Wp1
Y2 (center front of luggage compt)
Yp1
Yp3
Yy1

Ground Distribution Wiring Diagram (2 of 5) for Lexus RX 450h 2012

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List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus RX 450h 2012:

(left side of dash) instrument panel j/b
(left side of engine compt) j/c a57 & d41
A11 (right front of engine compt)
A24
A25
A26
A27
A28
A30
A31
A57
A65
A68
A70
A71
A8 (left front of engine compt)
A85
A91
A92
Acc1 relay
Acc2 relay
Af3
Af8
Air bag sensor assembly
Bk/dr lock relay
Blower w/ fan motor sub-assembly
Brake fluid level warning switch
Canister pump module
Cooling fan ecu 1
Cooling fan ecu 2
D dr unlock relay
D1 (left rear of engine)
D3 (top of engine)
D41
Da2
Dlc3
Door lock relay
Dr unlock relay
Ecm
F10
F2 (left end of dash)
F29
F5 (right kick panel)
F57
Front power window regulator switch assembly
Gf3
Halogen type
Headlight cleaner control relay
Headlight swivel ecu assembly
Hid & halogen type
Hid type
I1 (right "b" pillar)
If2
Ig1 relay 1
Ig1 relay 2
Ig1 relay 3
Ig1 relay 4
Ignition coil assembly
Im1
J/c a67
Led type
Left headlight assembly
Level warning switch assembly
Multiplex tilt & telescopic ecu
Power steering converter assembly
Power steering ecu assembly
Right electrical key antenna
Right fog light assembly
Right front door w/ motor lock assembly
Right front power window regulator motor assembly
Right headlight assembly
Right outer mirror control ecu assembly
Seat belt control ecu
Short connector
Skid control ecu assembly
Sliding roof control ecu
Suspension control ecu
Tg2
W/ motor compressor assembly
G1 (under center floor console)

Ground Distribution Wiring Diagram (3 of 5) for Lexus RX 450h 2012

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List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus RX 450h 2012:

(right "b" pillar)
(w/ memory) left front position control ecu & switch assembly
(w/o memory) left front power seat switch
Battery cooling blower assembly center
Battery voltage sensor
Door control receiver
Fuel lid courtesy switch
Fuel pump & fuel sender gauge assembly
G16
Height control valve harness assembly
Height control valve sub- assembly 2
Hv battery junction block assembly
Inter lock switch
Inverter relay
J/c a19 (under driver's seat)
J/c g22 (center of dash)
J/c o30 (right "d" pillar)
J/c o31 (right "d" pillar)
J/c p38 (left "d" pillar)
J/c p65 (left "d" pillar)
J/c z23 (under front passenger's seat)
Junction connector
Ko1
Left battery cooling blower assembly
Left front power seat switch assembly
Left front seat inner belt assembly
Left rear combination light assembly
Left rear door w/ motor lock assembly
Left rear power window regulator motor assembly
Left rear power window regulator switch assembly
Left rear side marker light assembly
Left seat back climate control blower
Left seat cushion climate control blower assembly
Left seat heater control sub- assembly
Left seat variable cushion switch
Lp1
Multi-display controller sub-assembly
O18
O2 (right "c" pillar)
Occupant detection ecu
Og1
Oz1
Oz2
Oz7
P2 (left "b" pillar)
P20
P21
P25
P26
P3 (left "c" pillar)
P56
Pneumatic w/ tube tank assembly
Pz1
Pa1
Qo1
Rear power point socket assembly
Right battery cooling blower assembly
Right front power seat switch
Right front power seat switch assembly
Right front seat inner belt assembly
Right rear combination light assembly
Right rear door w/ motor lock assembly
Right rear power window regulator motor assembly
Right rear power window regulator switch assembly
Right rear side marker light assembly
Right seat back climate control blower
Right seat cushion climate control blower assembly
Right seat heater control sub-assembly
Right seat variable cushion switch
Stereo component amplifier assembly
Suspension control switch 2
Vo1
Voltage inverter assembly
Wp1
Z30
Z34
Jp1

Ground Distribution Wiring Diagram (4 of 5) for Lexus RX 450h 2012

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List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus RX 450h 2012:

(w/ dynamic radar cruise control) driving support ecu assembly
(w/ dynamic radar cruise control) millimeter wave radar sensor assembly
(w/ navigation system) multi-display assembly
(w/ navigation system) navigation receiver assembly
(w/ navigation system) radio receiver assembly
(w/ power back door) back door lock assembly
(w/o navigation system) radio receiver assembly
A47
Ab1
Ac1
Af2
Air bag sensor assembly
Back door control switch
Back door opener switch assembly
Center stop light assembly
Combination meter assembly
Cruise control main switch assembly
F1 (left kick panel)
F16
F29
F3 (under center floor console)
F40
F97
F98
Front power point socket assembly 1
Front power point socket assembly 2
G1 (under center floor console)
Id code box
Instrument panel j/b (left side of dash)
J/c f92
J/c f93 (left side of dash)
J/c y21 (right side of back door)
J/c y23
J1 (left "b" pillar)
Jn1
Left electrical key antenna
Left front door w/ motor lock assembly
Left front power window regulator motor assembly
Left license plate light assembly
Left outer mirror control ecu assembly
Left rear light assembly
Main body ecu
Multiplex network master switch assembly
Nca
Option connector (check connector)
Option connector (glass breakage sensor ecu assembly)
Power management control ecu
Power switch
Rear window defogger
Rear wiper motor & bracket assembly
Right rear light assembly
Seat heater switch
Spiral cable (in steering column)
Steering pad switch assembly
Tire pressure warning ecu
To j/c f65 & f66 (diagram 5 of 5)
To j/c f94 (diagram 5 of 5)
Transmission control switch
Turn signal flasher assembly
Windshield wiper switch assembly
Y1 (center front of luggage compt)
Y16
Y19
Y20
Yaw rate sensor assembly
Yh1

Ground Distribution Wiring Diagram (5 of 5) for Lexus RX 450h 2012

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List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus RX 450h 2012:

A/c amplifier assembly
Air fuel ratio sensor (bank 1 sensor 1) shield
Air fuel ratio sensor (bank 2 sensor 1) shield
Certification ecu assembly
Clearance warning ecu assembly
Combination meter assembly
Crank position sensor shield
D2 (top rear of engine)
D4 (left front of engine compt)
Dcm (telematics transceiver)
Dlc3
Door control switch assembly
F14
F15
F38
F50
F54
F58
F65
F66
From j/c f92 (diagram 4 of 5)
From j/c f93 (diagram 4 of 5)
Fs2
Fuel lid opener switch
G13
G20
G21
Gf3
Glove box light assembly
Gi1
Hazard warning signal switch assembly
Headlight dimmer switch assembly
Heater control panel (radio receiver assembly)
Height control off switch
Hf2 f66
Intake mass air flow meter sub-assembly shield
J/c f65 & f66 (top center of dash)
J/c f94 (right side of dash)
J/c g20 & g21 (center of dash)
J/c g22 (center of dash)
Knock control sensor bank 1 & 2 shield
Left visor assembly
Light control rheostat
Main body ecu
Meter mirror sub- assembly
Multi information display assembly
Nca
Option connector (remote engine starter)
Overhead module
Oxygen sensor (bank 1 sensor 2) shield
Oxygen sensor (bank 2 sensor 2) shield
Parking assist ecu
Power back door main switch
Power tilt motor
Remote operation switch
Right visor assembly
Satellite switch set
Shift lock control ecu sub-assembly
Steering lock actuator assembly
Steering sensor
Suspension control switch
Tg2
Throttle w/ motor body assembly shield
Tire pressure warning reset switch
Vsc off switch
Water temperature switch

HEADLIGHTS

Adaptive Front Lighting Wiring Diagram for Lexus RX 450h 2012

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List of elements for Adaptive Front Lighting Wiring Diagram for Lexus RX 450h 2012:

(canada)
(hid type)
(led type)
(left side of dash) j/c f93
(or pnk)
(usa)
(w/ automatic high beam) overhead module
A11
A18
A21
A26
A29
A54
A55
A85
A86
Acc
Af2
Afs fuse 7.5a
Altb
Ap2
Auto
Becu
Canh
Canl
Combination meter assembly
Computer data lines system
D/l altb fuse 25a
Drl off
Ecu ig 1 fuse 10a
Ecu-acc fuse 10a
Ecu-b 1 fuse 10a
Ecu-ig 1 3 fuse 10a
Ecu-ig1 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F13
F14
F16
F40
F65
F66
Gauge 2 fuse 7.5a
Gf1
Gnd1
Gnd2
Head
Headlight dimmer switch assembly
Headlight swivel ecu assembly (left end of dash)
Hot at all times
Hot in on or acc
Hot in on or start
Ig+
Ig1
Igs
Init
Inner rear view mirror assembly
Instrument panel j/b (left side of dash)
J/c a62 (left side of dash)
J/c a67 (behind right headlight)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
Left headlight assembly
Lh e
Lh+
Lh-
Lhb1
Lhm+
Lht
Light control switch
Lin
Main body ecu (behind left side of dash)
Off
Pnk
Red
Rh e
Rh+
Rh-
Rhb1
Rhm+
Rht
Right headlight assembly
Rp1
Sbr
Sgr
Shb right rear height control sensor sub-assembly (at right rear suspension)
Shb3
Shb5
Shf2
Shfl
Shg
Shg3
Shg5
Shr2
Shrl
Shrr
Smbl
Smbr
Smgl
Smgr
Sml
Smr
Suspension control ecu (right side of dash)
Tail
Tg2
W/ air suspension
W/ display w/o display
W/o air suspension

Headlamps Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

(top center of dash) j/c f65 & f66
A11
A54
Acc
Af2
Af3
Air conditioning system
Altb
Auto
Automatic light control sensor (if equipped) (top right side of dash)
Bcty
Becu
Canada
Cann
Canp
Cltb
Clte
Clts
Computer data lines system
D/l altb fuse 25a
D26
Dim
Dimmer switch
Drl
Drl off
Ecu-acc fuse 10a
Ecu-b 1 fuse 10a
Ecu-ig1 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F10
F12
F13
F14
F19
F32
F37
F40
F65
F66
Ffgo
Ffog
Flash
Flcy
Fog light switch
Fr fog fuse 15a
Fr fog relay
Frcy
Gauge 2 fuse 7.5a
Gnd1
Gnd2
H26
Head
Headlamp dimmer switch assembly
Hf1
High
Hot at all times
Hot in on or acc
Hot in on or start
Hrly
Instrument panel j/b (left side of dash)
Interior lights system
J/c a58 (behind left headlight)
J/c a67 (behind right headlight)
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
Lcty
Left fog light assembly
Light control switch
Llew
Low
Main body ecu (behind left side of dash)
Off
Parking brake switch (left end of dash)
Pd fuse 50a
Pkb
Pnk
Rcty
Red
Relay
Right fog light assembly
Rlew
Tail
Tail fuse 10a
Trly
Tsl
Tsr
Usa
W/ drl

Headlamps Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(left side of dash) j/c f93
A11
A18
A19
A20
A26
A27
A28
A4 (left front of engine compt)
A85
A86
B right headlight assembly (led type)
Bi-xenon fuse 10a
Bi-xenon relay (hid type)
C13
Canh
Canl
Combination meter assembly
Computer data lines system
Control
Dcdc fuse 150a
Drl relay
Ecu
Engine room j/b assembly (left side of engine compt)
Except hid type
Except led type
F16
H-lp lh hi fuse 15a
H-lp lh lo fuse 15a
H-lp rh hi fuse 15a
H-lp rh lo fuse 15a
Halogen type
Head relay (ll)
Head relay (rl)
Hid type
High
Hot at all times
Ig+
J/c a67 (behind right headlight)
J/c f92 (under center console)
Led type
Left headlight assembly
Light
Light control
Low
Low (hid)
Pnk
Red
Right headlight assembly
Right headlight assembly (hid type)
S left headlight assembly (led type)

HORN

Horn Wiring Diagram for Lexus RX 450h 2012

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List of elements for Horn Wiring Diagram for Lexus RX 450h 2012:

A42
C12
C15
Engine room j/b assembly (left side of engine compt)
F24
F40
Horn
Horn assembly (high pitch) (left front of engine compt)
Horn assembly (low pitch) (right front of engine compt)
Horn fuse 10a
Horn relay
Horn switch
Hot at all times
Instrument panel j/b (left side of dash)
Main body ecu
Red
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

A/b
A54
A90
Af3
Af8
Canh
Canl
Chk
Combination meter assembly
Computer data lines system
Da1
Dcm (telematics transceiver) (under center console)
Down
Engine controls system
Engine oil pressure switch assembly (lower left front of engine)
Enter
Exterior lights system
F15
F16
F40
F65
F66
F97
Fg1
Fs2
Fuel pump & fuel sender (top of fuel tank)
G25
Gauge 2 fuse 7.5a
Gf1
Gnd
Hot in on or start
Ig+
Ill-
Instrument panel j/b (left side of dash)
Interior lights system
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Menu
Mssl
Navigation receiver assembly
O15
O33
Of3
Pblt
Pf4
Pnk
Power management control ecu (left side of dash)
Radio receiver assembly
Red
Rhdw
Rhup
Right steering pad switch
Skid control ecu assembly (right side of dash)
Sound systems
Sp1
Spd
Spdi
Spdp
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Stereo component amplifier assembly (luggage compt)
Tws2
Tx+
W/ navigation
W/o navigation
Water temperature switch (under front center of vehicle)
Windshield wiper switch assembly
Wiper/washer system
Wlvl
Jp1

Instrument Cluster Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

A30
A51
Acc
Back door lock assembly (lower center of back door)
Back door lock assembly (w/o power back door) (lower center of back door)
Bcty
Canh
Canl
Cann
Canp
Computer data lines system
Cty
D26
D39
Ecu-acc fuse 10a
Ecu-b 1 fuse 10a
Engine hood courtesy switch (center front of engine compt)
Engine room r/b assembly (on left side of engine compt)
F12
F13
F14
F23
F32
F40
F65
Flcy
Frcy
Ful
Gauge 1 fuse 10a
Gnd2
H26
Hcty
Hdd
Hdu
Hf2
Hot at all times
Hot in on or acc
Hot in on or start
Hud
Hudd
Hudo
Hudu
Ild
Ill+
Ill-
Ilu
Instrument panel j/b (left side of dash)
Interior lights system
J/c a63 (left side of dash)
J/c f65 & f66 (top center f66
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c p39 (left "d" pillar)
J/c p40 (left "d" pillar)
J/c y23 (left side of back door)
Lcty
Left front door courtesy light switch assembly (at left "b" pillar)
Left rear door courtesy light switch assembly (at left rear "c" pillar)
Main body ecu
Meter mirror sub-assembly (left side of dash)
Mpx1
Mpx2
Of dash)
Of1
Of2
P4 (left rear of luggage compt)
Parking brake switch assembly (left end of dash)
Pf1
Pf4
Pkb
Pnk
Power back door unit assembly (if equipped) (left rear of roof)
Rcty
Red
Right front door courtesy light switch assembly (at right "b" pillar)
Right rear door courtesy light switch assembly (at right rear "c" pillar)
Satellite switch set
Tx-
Yp1
Yp2
Yy1

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

(left front of luggage compt) j/c o28 & p36
+b1
Acc
Altb
Bcty
Becu
Canh
Canl
Cann
Canp
Cill
Computer data lines system
Cspt
Cty
D/l alt b fuse 25a
D11
D12
D13
D23
D26
Dmdr
Dmon
Dome fuse 10a
Door
Ecu- acc fuse 10a
Ecu- b 1 fuse 10a
Ecu- ig1 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F12
F13
F14
F40
Flcl
Flcy
Frcl
Frcy
Gf1
Gf3
Gnd
Gnd1
H21
H23
H24
H26
Hot at all times
Hot in on or acc
Hot in on or start
Htr-
If1
Ile
Illb
Instrument panel j/b (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c p39 (left "d" pillar)
Jf2
Ko1
Lcty
Lcyl
Left front courtesy light assembly
Left front door courtesy light switch (at left "b" pillar)
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
Left rear door courtesy light switch (at left rear "c" pillar)
Lill
Main body ecu
O28
Of1
Of2
Overhead module
P36
Pf1
Pf4
Pnk
Rcty
Rcyl
Red
Rgnd
Right front courtesy light assembly
Right front door courtesy light switch (at right "b" pillar)
Right rear courtesy light assembly
Right rear door courtesy light switch (at right rear "c" pillar)
Rrmp
Shft
Sport light assembly
Tg1
Tg2

Courtesy Lamps Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

Back door courtesy light assembly
Back door lock assembly (lower center of back door)
Cann
Canp
Computer data lines system
Ctyo
Diode (back door)
F20
F48
Footwell
Htr-
J/c o29 & p37 (left front of luggage compt)
J/c p40 (left "d" pillar)
Left interior illumination light assembly 1
Left rear courtesy light assembly
Left room light assembly 2
Left vanity light assembly
Left visor assembly
Lp1
O29
Op2
P37
P4 (left rear of luggage compt)
Pnk
Power back door unit assembly (left rear of roof)
Red
Right interior illumination light assembly 1
Right outer mirror control ecu assembly (in right front door)
Right outer rear view mirror assembly (on right front door)
Right room light assembly 2
Right vanity light assembly
Right visor assembly
W/ power back door
W/o power back door
Yp1
Yy1

Instrument Illumination Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

A54
A55
Acan
Acc
Adim
Altb
Auto
Becu
Canh
Canl
Computer data lines system
Console box illumination light assembly
D/l alt b fuse 25a
Dcdc fuse 150a
Distance control
Door control switch assembly
Ecu- acc fuse 10a
Ecu- ig1 1 fuse 10a
Ecu-b 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Enter
F13
F14
F40
F63
F64
Fg1
Front wiper deicer switch
G1 (under center floor console)
G20
G21
Gauge 2 fuse 7.5a
Gf2
Gf3
Glove box light assembly
Gnd1
Gi1
Hazard warning signal switch assembly
Head
Headlight dimmer switch assembly
Heater control panel (radio receiver assembly)
Hook
Hot at all times
Hot in on or acc
Hot in on or start
Ill
Ill+
Ill-
Instrument panel j/b (left side of dash)
J/c f63 & f64 (left side of dash)
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c g20 & g21 (center of dash)
J/c g22 (center of dash)
Left steering pad switch
Light control switch
Main body ecu
Menu
Mode
Monitor
Multi information display assembly (w/o navigation)
Multi- display assembly
Navigation receiver assembly (w/ navigation)
Off (canada) drl off (usa)
Panel fuse 10a
Pnk
Red
Remote operation switch
Right steering pad switch
Seek
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Swg
Tail
Tail relay
Trly
Ug1
Voice
Volume
W/ navigation
W/o navigation

Instrument Illumination Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(top center of dash)
(under center console)
A/b
Adim
Canh
Canl
Certification ecu assembly (right side of dash)
Combination meter assembly
Computer data lines system
Dcm (telematics transceiver)
Down
F15
F16
F58
F63
F64
F65
F66
Fg1
Front power window regulator switch assembly
Fuel lid opener switch
G12
G25
Gf2
Gf3
Headlight cleaner switch assembly
If1
Ig+
Ill+
Ill-
J/c f63 & f64 (left side of dash)
J/c f65 & f66 (top center of dash)
J/c f66
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c g22 (center of dash)
J/c o30 (right "d" pillar)
J/c o31 (right "d" pillar)
Jf2
Light control rheostat
Multiplex network master switch assembly
Odo trip
Of1
Pnk
Power switch
Radio receiver assembly
Red
Rhdw
Rhup
Satellite switch set
Seat heater switch
Shift position indicator
Suspension control switch
Suspension control switch 2
Swg
Swil
Tail
Vsc off switch
W/ navigation
W/o navigation
Windshield wiper switch assembly

MEMORY SYSTEMS

Driver"s Memory Seat Wiring Diagram for Lexus RX 450h 2012

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List of elements for Driver"s Memory Seat Wiring Diagram for Lexus RX 450h 2012:

(in left front door) left outer mirror control ecu assembly
(under driver's seat) j/b a19
Back
Buckle switch
Cann
Canp
Computer data lines system
Csnf
Csnr
Ecu-b 1 fuse 10a
Engine room r/b assembly (on left side of of engine compt)
F40
Frv+
Frv-
Fwd
Gnd
H13
H14
Hot at all times
Instrument panel j/b (left side of dash)
J/b a18 (under driver's seat)
J/c a19 (under driver's seat)
Left front lumbar support forward & back motor assembly (in driver's seat back)
Left front position control ecu & switch assembly (left side of driver's seat cushion)
Left front power seat cushion control motor assembly (under driver's seat)
Left front power seat lift position motor assembly (under driver's seat)
Left front power seat reclining position motor assembly (in driver's seat back)
Left front power seat slide position motor assembly (under driver's seat)
Left front power seat vertical position motor assembly (under driver's seat)
Left front seat inner belt assembly (under driver's seat)
Left front seat outer belt assembly (base of left "b" pillar)
Left power seat front switch assembly
Left seat variable cushion switch
Lft+
Lft-
Mswe
O/p
P-seat lh fuse 30a
P2 (left "b" pillar)
Pbcl
Pnk
Prdc
Pvcc
Pa1
Rcl+
Rcl-
Red
Seat memory switch
Set
Sgnd
Sld+
Ssrs
Sysb
Vcc

Memory Mirrors Wiring Diagram for Lexus RX 450h 2012

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List of elements for Memory Mirrors Wiring Diagram for Lexus RX 450h 2012:

(in right front door)
12v
A11
A14
A37
A38
Bdr
Canh
Canl
Cann
Canp
Certification ecu assembly (right side of dash)
Computer data lines system
Cpub
D21
D27
D39
Ec+
Ec-
Eci+
Eci-
Ecu-b 1 fuse 10a
Ecu-b 2 fuse 7.5a
Ecu-ig1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Exterior lights system
F1 (left kick panel)
F11
F14
F40
F5 (right kick panel)
F58
Fl door fuse 25a
Fr door fuse 25a
Gnd
Hot at all times
Hot w/ ig1 1 relay energized
Hssr
Htr+
Htr-
If1
If2
Instrument panel j/b (left side of dash)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
Jf1
Jf2
Le1
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (in left front door)
Lin2
Lm+r
Lmhr
Lmvr
Lvc
Main body ecu
Mirror adjust switch
Mirror auto retract switch
Mirror retract switch
Mirror select switch
Mirrors system
Mr+
Mr-
Mswe
Multiplex network master switch assembly
Pnk
Re1
Red
Right outer mirror control ecu assembly
Right outer rear view mirror assembly (in right front door)
Rm+r
Rmhr
Rmvr
Rvc
Seat memory switch
Set
Sig
Trn+
Trn-
Trni
Vssr

Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus RX 450h 2012

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List of elements for Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus RX 450h 2012:

Buckle switch
Canh
Canl
Cann
Canp
Certification ecu assembly (right side of dash)
Computer data lines system
Cpub
D30
D39
Data
Door control receiver (right "c" pillar)
Ecu ig1 1 fuse 10a
Ecu-b 1 fuse 10a
Ecub
Engine room r/b assembly (on left side of engine compt)
F1 (left kick panel)
F14
F35
F38
F40
F58
Flcy
Gnd
H26
Headlamp dimmer switch assembly
Hot at all times
Hot w/ ig1 1 relay energized
Instrument panel j/b (left side of dash)
J/b a19 (under driver's seat)
J/b f94 (right side of dash)
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c o31 (right "d" pillar)
J/c p39 (left "d" pillar)
Jf2
Left front door courtesy light switch assembly (at left "b" pillar)
Left front position control ecu & switch assembly (left side of driver's seat cushion)
Left front seat inner belt assembly (under driver's seat)
Left outer mirror control ecu assembly (in left front door)
Main body ecu
Msw
Mswe
Multiplex tilt & telescopic ecu (at base of steering column)
P2 (left "b" pillar)
Pbcl
Pnk
Power tilt motor (on steering column)
Rco
Rda
Red
Rssi
Seat memory switch
Set
Telesco short
Telesco stretch
Telescopic motor
Telescopic sensor
Tem+
Tem-
Tes
Ti & te fuse 30a
Tilt & telescopic switch
Tilt down
Tilt up
Tim+
Tim-
Tis
Vce
Vci

NAVIGATION

Navigation Wiring Diagram (1 of 5) for Lexus RX 450h 2012

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List of elements for Navigation Wiring Diagram (1 of 5) for Lexus RX 450h 2012:

(under center floor console) g1
+b1
A30
A40
A50
A53
Acc
Af2
Amp1 fuse 30a
Amp2 fuse 30a
Ca+
Canh
Canl
Cgnd
Computer data lines system
D20
Dcm (telematics transceiver) (w/ lexus enform or safety connect) (under center console)
Ecu ig2 fuse 10a
Ecu-acc fuse 10a
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F32
Fg1
G20
G21
G25
G31
G34
Gauge 1 fuse 10a
Gf1
Gf3
Gnd1
Gps antenna
Hot at all times
Hot in on or acc
Hot in on or start
Ieee
Ieee connector (under center console)
Ill+
Ill-
Instrument cluster system
Instrument panel j/b (left side of dash)
Interior lights system
J/c f94 (right side of dash)
J/c g20 & g21 (center of dash)
J/c g22 (center of dash)
Macc
Mci+
Mci-
Mco+
Mco-
Mcvd
Min+
Min-
Mute
Navigation receiver assembly
Nca
Ntsf
Ntso
Og1
Og2
Op1
Overhead module
Parking brake switch assembly (left end of dash)
Pkb
Pnk
Rad 1 fuse 10a
Rad 3 fuse 15a
Rear television camera (lower center of back door)
Red
Red cv+
Sgd1
Sgnd
Sld1
Sld2
Sns2
Spd
Spi+
Spi-
Spo+
Spo-
Sw1
Sw2
Swg
Telephone microphone
Tg2
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Usb
Usbg
Usbv
Vmtf
Vor+
Vor-
Vot+
Vot-
Vv+
Vv-
W/ lexus enform
W/o lexus enform
Yp2

Navigation Wiring Diagram (2 of 5) for Lexus RX 450h 2012

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List of elements for Navigation Wiring Diagram (2 of 5) for Lexus RX 450h 2012:

(or red)
(under rear of center console) (if equipped) multi-media interface ecu
Acc
Computer data lines system
F40
Front speaker assembly 4
G1 (under center floor console)
G28
Gf2
Gnd
Gnd1
Gvif
Hf1
If2
Ill
Interior lights system
Jf1
Left front speaker assembly 2
Left front speaker assembly 3
Left steering pad switch
Mode
Multi-display assembly
Nca
Ntsc
Of2
Of3
Off hook
Og1
On hook
Op2
Pnk
Rear speaker assembly 3
Red
Right front speaker assembly 2
Right front speaker assembly 3
Right steering pad switch
Seek+
Seek-
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Twl+
Twl-
Twr+
Twr-
Tx+
Tx-
Tx1+
Tx1-
U12
Ug1
Ugd1
Ulo+
Uro+
Usd1
Vmt1
Voice
Volume +
Volume -
W/ lexus enform pnk
W/ parking assist
W/o lexus enform
W/o parking assist
Wf1+
Wf1-
Wf2+
Wf2-

Navigation Wiring Diagram (3 of 5) for Lexus RX 450h 2012

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List of elements for Navigation Wiring Diagram (3 of 5) for Lexus RX 450h 2012:

(right side of dash) parking assist ecu
+b2
Acc
Af10
Agnd
Computer data lines system
Ctr+
Ctr-
F54
F90
F91
Fg2
Fg3
Fl+
Fl-
Fr+
Fr-
G23
G24
G29
G30
Gf3
Gnd
Gnd2
Gvif
If2
Instrument cluster system
J/c o31 (right "d" pillar)
Jf1
Left front speaker assembly 1
Mi+
Mi-
Mo+
Mo-
Navigation receiver assembly
Nca
O15
O16
O17
O18
Of2
Og1
Og2
Pnk
Red
Right front speaker assembly 1
Rl+
Rl-
Rr+
Rr-
Sl+
Sl-
Sldi
Sldo
Spd
Sr+
Sr-
Stereo component amplifier (luggage compt)
Tmut
Tx+
Tx-
Txm+
Txm-
Usb
Usbg
Usbv
Va-
Val+
Var+
Vmtr
Vor+
Vor-
Vot+
Vot-
W/ parking assist
W/ rear seat entertainment system
W/o parking assist
W/o rear seat entertainment system
Wf1+
Wf1-
Wf2+
Wf2-
Wfl+
Wfl-
Wfr+
Wfr-
Wui
Wuo

Navigation Wiring Diagram (4 of 5) for Lexus RX 450h 2012

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List of elements for Navigation Wiring Diagram (4 of 5) for Lexus RX 450h 2012:

(center of dash) j/c g21
(center of dash) j/c g22
(or red)
+tw
-tw
Acc
Agnd
Ali
Alo
Ari
Aro
Asgn
Auxi
Auxo
Combination meter assembly
F16
G1 under center floor console)
G13
G14
Gf3
Gnd
Ill+
Ill-
Interior lights system
J/c f66 (top center of dash)
J/c f92 under center console
Ko1
Left quarter side speaker assembly (w/ 15 speaker)
Left rear speaker assembly
Left rear speaker assembly 2
Lp1
Mi+
Mi-
Mo+
Mo-
Nca
Ntsc
Op2
Pblt
Pnk
Radio receiver assembly
Red
Remote operation switch
Right quarter side speaker assembly (w/ 15 speaker)
Right rear speaker assembly
Right rear speaker assembly 2
Sld
Sldi
Sldo
Stereo jack adapter assembly 1
Stereo jack adapter assembly 1 (w/ multi-media interface ecu)
Ug2
Ug3
W/ multi-media interface ecu
W/o multi-media interface ecu
Wui
Wuo

Navigation Wiring Diagram (5 of 5) for Lexus RX 450h 2012

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List of elements for Navigation Wiring Diagram (5 of 5) for Lexus RX 450h 2012:

(center of dash) j/c g22
(top center of dash) j/c f66
+b1
Acan
Acc
Adim
Adp1
Adpg
Air
Aron
Computer data lines system
Door locks system
F14
F63
F64
G15
G16
Gf2
Gf3
Gnd
Gnd1
Gnd2
Gnd3
Gnd4
Gnd5
Headphone terminal
Heater control panel (radio receiver assembly)
Hp1l
Hp1r
Hp2l
Hp2r
Ig+
Ill+
Ill-
Interior lights system
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
J/c g22 (center of dash)
L1+
L1-
L2+
L2-
Left set back display
Main body ecu (behind left side of dash)
Md0
Mi+
Mi-
Mo+
Mo-
Multi-display controller sub-assembly (under center console)
Mut1
Mut2
Mute
Nca
Nts1
Nts2
Nts4
Ntsc
Og2
Op3
Oz3
Passenger air bag on/off indicator
Pbew
Pf3
Pnk
Pwr1
Pwr2
Pa2
R1+
R1-
R2+
R2-
Rear window defogger switch
Red
Right set back display
Sg1
Sg2
Sgn1
Sgn2
Sgn3
Sgn4
Sgn5
Sgn6
Sld1
Sld2
Slda
Sldb
Sldi
Sldo
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Uf1
Ug1
Va-
Val+
Var+
Vmt1
Vmt2
Vmtr
Vv+
Vv-
Vv1+
Vv1-
Wui

Parking Assistant Wiring Diagram for Lexus RX 450h 2012

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List of elements for Parking Assistant Wiring Diagram for Lexus RX 450h 2012:

A29
A33
Acc
Af2
Af5
Bbz
Blsw
Canh
Canl
Cb+
Cgnd
Clearance warning buzzer 1 (center of dash)
Computer data lines system
Csb1
Csb2
Csg1
Csg2
Cv+
Cv-
Ecu ig1 2 fuse 10a
Engine room r/b assembly (on left side side of engine compt)
F40
F54
F55
F65
F66
F90
F91
Fg1
Fg2
Fg3
G1 (under center floor console)
G21
G28
G29
Gf1
Gf3
Gnd1
Gvif
Hot at all times
Hot in on or acc
Hot in on or start
If2
Instrument panel j/b (left side of dash)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c g20 & g21 (center of dash) g20
Left steering pad switch
Left ultrasonic sensor 1 (left front corner of engine compt)
Left ultrasonic sensor 2 (behind rear bumper)
Left ultrasonic sensor 3 (behind rear bumper)
Lin1
Lin2
Monitor
Multi-display controller sub-assembly (under center console)
Navigation receiver assembly
Nca
Of2
Og2
Op1
Parking assist ecu (right side of dash)
Pnk
Rad 1 fuse 10a
Rad 3 fuse 15a
Radio 2 fuse 7.5a
Rear television camera assembly (lower center of back door)
Red
Red cv+
Right ultrasonic sensor 1 (right front corner of engine compt)
Right ultrasonic sensor 2 (behind rear bumper)
Right ultrasonic sensor 3 (behind rear bumper)
Scb+
Scv+
Scv-
Sgnd
Side television camera assembly (front passenger's door)
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Swg
Tx+
Tx-
Tx1+
Tx1-
Vo1
Xv1
Yp2

Rear Sonar Wiring Diagram for Lexus RX 450h 2012

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List of elements for Rear Sonar Wiring Diagram for Lexus RX 450h 2012:

A33
A81
Af5
Bbz
Bof
Bor
Ca2h
Ca2l
Clearance warning buzzer 1 (center of dash)
Clearance warning ecu assembly (right side of dash)
Computer data lines system
Da2
Ecu ig1 2 fuse 10a
Engine room r/b 2 (left rear of engine compt)
F97
Hot in on or start
Hot w/ igct main relay energized
Igct 3 fuse 10a
Instrument panel j/b (left side of dash)
J/c a62 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
Left ultrasonic sensor 1 (left front corner of engine compt)
Left ultrasonic sensor 2 (behind rear bumper)
Left ultrasonic sensor 3 (behind rear bumper)
Of2
Pnk
Power management control ecu (left side of dash)
Red
Right ultrasonic sensor 1 (right front corner of engine compt)
Right ultrasonic sensor 2 (behind rear bumper)
Right ultrasonic sensor 3 (behind rear bumper)
Shift lever position sensor (on transmission)
Sof
Sor
Vo1
Xv1

Rear View Monitoring Wiring Diagram for Lexus RX 450h 2012

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List of elements for Rear View Monitoring Wiring Diagram for Lexus RX 450h 2012:

(under center console) j/c f92
A18
A80
Ap2
Bk/up lp fuse 7.5a
Bk/up lp relay
Cb+
Cgnd
Cv+
Cv-
Ec+
Ec-
Ecu ig1 3 fuse 10a
Engine room r/b 2 (left rear of engine compt)
Engine room r/b assembly (on left side of engine compt)
Exterior lights system
Gf1
Gnd
Gnd1
Headlights system
Hot in on or start
Ig1
Inner rear view mirror assembly
Instrument panel j/b (left side of dash)
J/c a63 (left side of dash)
J/c p36 & o28 (left rear of vehicle)
Lin
Mirrors system
Nca
O28
Og1
Og2
Op1
Overhead module
P36
Pnk
Power management control ecu (left side of dash)
Rear television camera assembly (lower center of back door)
Red
Red cv+
Rev
Tg1
Tg2
Yp2

Telematics Wiring Diagram for Lexus RX 450h 2012

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List of elements for Telematics Wiring Diagram for Lexus RX 450h 2012:

A28
A53
Acc
Af2
Air bag sensor assembly
Backup battery (mayday battery) (right side of dash)
Bbi+
Bbi-
Bbo+
Bbo-
Btr1
Btr2
Computer data lines system
Ctr1
Ctr2
Dcm (telematics transceiver) (under center console)
Ecu ig2 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F29
Fg1
Fr+
Fr-
G10
G25
G30
G34
Gf1
Gf2
Gf3
Gnd3
Gps antenna
Gsw
Gsw3
Hot at all times
Hot in on or acc
Hot in on or start
If2
Ig2
Ill+
Ind1
Ind2
Instrument cluster system
Instrument panel j/b (left side of dash)
Interior lights system
J/c f66 (top center of dash)
J/c f92 (under center console)
J/c g22 (center of dash)
Macc
Mayday/tel fuse 7.5a
Mci+
Mci-
Mco+
Mco-
Mcvd
Min+
Min-
Mute
Navigation receiver assembly
Nca
O15
O17
Og1
Overhead module
Pnk
Radio 2 fuse 7.5a
Radio receiver assembly
Red
Right front speaker assembly 2
Right front speaker assembly 3
Rrid
Sgnd
Sig-
Sig1
Sil
Sled
Spdp
Spi+
Spi-
Spo+
Spo-
Stereo component amplifier (luggage compt)
Telephone antenna
Tg2
Tmut
Twr+
Twr-
Usb
Usbg
Usbv
Vor+
Vor-
Vot+
Vot-
W/ navigation
W/o navigation

PASSIVE RESTRAINTS

Passive Restraints Wiring Diagram for Lexus RX 450h 2012

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List of elements for Passive Restraints Wiring Diagram for Lexus RX 450h 2012:

Buckle switch
Ecu ig1 2 fuse 10a
H29
H30
Hot in on or start
Instrument panel j/b (left side of dash)
J/c a19 (under driver's seat)
J/c p36 & o28 (left front of luggage compt)
J/c z23 (under front passenger's seat)
Left front position control ecu & switch assembly (left side of driver's seat cushion)
Left front seat inner belt assembly (under driver's seat)
Left front seat outer belt assembly (base of left "b" pillar)
O28
O3 (right "b" pillar)
Oz1
P2 (left "b" pillar)
P36
Pbcl
Pnk
Prdc
Pa1
Right front seat inner belt assembly (under front passenger's seat)
Right front seat outer belt assembly (base of right "b" pillar)
W/ memory
W/o memory

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Lexus RX 450h 2012

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List of elements for Power Distribution Wiring Diagram (1 of 4) for Lexus RX 450h 2012:

Af5
Air conditioning system
Air sus fuse 50a
Air sus relay
Am2 fuse 7.5a
Amp1 fuse 30a
Amp2 fuse 30a
Anti-lock brakes system
Anti-theft & door locks systems
Battery
Capacitor fuse 10a
Cooling fans & air conditioning systems
Dcdc fuse 150a
Dcdc-s fuse 7.5a
Deicer fuse 25a
Deicer relay
Dome fuse 10a
Door locks & anti-theft systems
Ecu-b 1 fuse 10a
Ecu-b 2 fuse 7.5a
Efi 1 fuse 10a
Efi main fuse 30a
Efi main relay
Electronic power steering system
Electronically controlled brake system 1 fuse 50a
Engine controls system
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Eps fuse 80a
Etcs fuse 10a
Exterior lights system
Exterior lights, shift interlock & engine controls systems
From a short pin (diagram 1 of 4)
Fuse box (rear of luggage compt)
Fusible link block assembly (left rear of luggage compt)
G19
G20
H-lp cln fuse 30a
Haz fuse 15a
Heater fuse 50a
Ig1 main fuse 30a
Ig2 main fuse 30a
Immobi fuse 7.5a
Interior lights system
Ip j/b fuse 25a
Main fuse 180a
Navigation & sound systems
Nca
P67
Pbd fuse 30a
Pnk
Rad 1 fuse 10a
Rad 3 fuse 15a
Rdi fan 1 fuse 40a
Rdi fan 2 fuse 40a
Red
Rr def fuse 50a
Rr def relay
Rr-b fuse 50a
Short pin
Sound systems
Stop fuse 7.5a
Str lock fuse 20a
To dcdc fuse (diagram 1 of 4)
To hv r/b 2 fuse (diagram 2 of 4)
To ig1 relay (diagram 2 of 4)
To ig2 relay (diagram 2 of 4)
To instrument panel j/b (diagram 3 of 4)
To j/c f63 & f64 (diagram 4 of 4)
Towing fuse 30a
Trunk, tailgate, fuel doors system
Trunk, tailgate, fuel doors, memory, instrument cluster, body computer, anti-lock brakes, garage door opener, anti-theft, door locks & electronic power steering systems
Wiper/ washer system

Power Distribution Wiring Diagram (2 of 4) for Lexus RX 450h 2012

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List of elements for Power Distribution Wiring Diagram (2 of 4) for Lexus RX 450h 2012:

(left side of dash) instrument panel j/b
A/c w/p fuse 10a
A/f fuse 20a
A/f relay
A26
A49
A53
A54
Afs fuse 7.5a
Air conditioning & navigation systems
Air conditioning system
Anti-lock brakes system
Batt fan fuse 15a
Bi-xenon relay
Bk/up lp fuse 7.5a
Defogger & air conditioning systems
Drl relay
Ecu ig1 fuse 10a
Ecu ig2 fuse 10a
Electronically controlled brake system 2 fuse 50a
Electronically controlled brake system main 1 fuse 10a
Electronically controlled brake system main 2 fuse 10a
Electronically controlled brake system main 3 fuse 15a
Engine controls & anti-lock brakes systems
Engine controls system
Engine room r/b 3 (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Exterior lights system
F12
F30
From b rad 1 fuse (diagram 1 of 4)
From gauge 2 fuse (diagram 2 of 4)
From ig1 main fuse (diagram 1 of 4)
From ig2 main fuse (diagram 1 of 4)
Gauge 2 fuse 7.5a
Head relay (ll)
Head relay (rl)
Headlights system
Heater 2 fuse 7.5a
Horn fuse 10a
Horn relay
Hv r/b 1 fuse 30a
Hv r/b 2 fuse 80a
Ig1 relay
Ig2 relay
Ign fuse 10a
Instrument cluster, anti-theft, shift interlock & door locks systems
J/c a63 (left side of dash)
Mayday/ tel fuse 7.5a
Navigation system
Oil pmp fuse 10a
Pd fuse 50a
Pnk
Red
S-horn fuse 7.5a
S-horn relay
To ig2 relay (diagram 2 of 4)
To instrument panel j/b (diagram 3 of 4)
To power management control ecu (diagram 4 of 4)

Power Distribution Wiring Diagram (3 of 4) for Lexus RX 450h 2012

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List of elements for Power Distribution Wiring Diagram (3 of 4) for Lexus RX 450h 2012:

(left side of dash) instrument panel j/b
A10
A17
A18
A19
A20
A27
A28
A29
A30
A32
A33
A37
A38
A39
A55
Acc
Acc1 relay
Acc2 relay
Anti-lock brakes system
Cig fuse 15a
D10
D15
D16
D29
D30
D31
D40
Defogger & air conditioning systems
Ecu ig1 1 fuse 10a
Ecu ig1 3 fuse 10a
Ecu-ig1 2 fuse 10a
Electronic power steering system
Exterior lights & headlights systems
Exterior lights system
F14
F39
F5 (right kick panel)
Fr wash fuse 25a
Fr wip fuse 30a
From engine room r/b assembly (diagram 1 of 4)
From ig1 relay (diagram 2 of 4)
Front power point socket assembly
Front power point socket assembly 1
Gauge 1 fuse 10a
H12
H29
H30
H32
H35
Heater fuse 10a
Ig1 1 relay
Ig1 2 relay
Ig1 3 relay
Ig1 4 relay
Interior lights system
J/c f92 (under center console)
Lh s-htr fuse 15a
Main body ecu
Mirrors & memory systems
Navigation system
Navigation, sound, exterior lights & instrument cluster systems
P/point fuse 15a
P2 (left "b" pillar)
Panel fuse 10a
Passive restraint system
Pf4
Pnk
Power tops, mirrors & navigation systems
Radio 2 fuse 7.5a
Rear power point socket assembly
Red
Rh s-htr fuse 15a
Rr wash fuse 20a
Rr wip fuse 15a
Seats system
Shift interlock system
Sound & navigation systems
Sound systems
Tail fuse 10a
Tail relay
To d/l alt b fuse (diagram 4 of 4)
To ecu-acc fuse (diagram 4 of 4)
To j/c f94 (diagram 4 of 4)
To power management control ecu (diagram 4 of 4)
Transmissions system
Trly
Trunk, tailgate, fuel doors system
Uf1
Warning system
Wiper/ washer & seats systems
Wiper/washer system

Power Distribution Wiring Diagram (4 of 4) for Lexus RX 450h 2012

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List of elements for Power Distribution Wiring Diagram (4 of 4) for Lexus RX 450h 2012:

(left side of dash) instrument panel j/b
(not used)
A11
A12
A14
A50
A51
A52
A81
Ac1
Ac2
Acc
Acc1
Acc2
Accd
Air conditioning, navigation & sound systems
Air sus fuse 20a
Alt b
Am21
Am22
Bk/dr lock relay
Computer data lines system
D/l alt b fuse 25a
D/l source relay
D24
Dr lock fuse 10a
E01
E02
E12
Ecu-acc fuse 10a
Electronic suspension system
F1 (left kick panel)
F63
F64
F97
F98
Fl door fuse 25a
Fr door fuse 25a
Fr fog fuse 15a
Fr fog relay
From acc1 relay l (diagram 3 of 4)
From acc2 relay (diagram 3 of 4)
From am2 fuse (diagram 1 of 4)
From ecu ig1 3 (diagram 3 of 4)
From ig1 1 relay (diagram 3 of 4)
From ig2 relay (diagram 2 of 4)
From k acc1 relay (diagram 3 of 4)
Fuel opn fuse 7.5a
Gnd
H13
H18
Ig1d
Ig2d
Instrument cluster system
Inverter fuse 20a
Inverter relay (left 'c' pillar)
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c p38 (left "d" pillar)
Main body ecu
Memory systems
Mirrors, memory & power windows systems
Obd fuse 7.5a
P-seat lh fuse 30a
P-seat rh fuse 30a
P3 (left "c" pillar)
Pf1
Power management control ecu (left side of dash)
Power outlet socket assembly
Power switch
Power tops system
Power windows system
Psb fuse 30a
Red
Rl door fuse 25a
Rr door fuse 25a
S/roof fuse 30a
Seats system
Ssw1
Ssw2
Ti & te fuse 30a
Trunk, tailgate, fuel doors system
Uf1
Voltage inverter (left side of cargo area)

POWER DOOR LOCKS

Power Door Locks Wiring Diagram (1 of 5) for Lexus RX 450h 2012

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List of elements for Power Door Locks Wiring Diagram (1 of 5) for Lexus RX 450h 2012:

(right "b" pillar)
Acc
Act+
Act-
Actd
Actg
Altb
Back door lock assembly (w/o power back door) (lower center of back door)
Bcty
Bzr
Canh
Canl
Computer data lines system
D dr unlock relay
D/l altb fuse 25a
D/l source relay
D12
D13
D26
D27
D35
D36
Detection unlock
Door lock relay
Dr unlock relay
Ecu-acc fuse 10a
Ecu-igi 1 fuse 10a
Exterior lights system
F1 (left kick panel)
F12
F13
F14
F22
F23
F24
F25
F37
F5 (right kick panel)
F65
F66
Flcy
Frcy
Gf1
Gnd2
H10
H23
H24
H26
H27
Haz
Hcty
Headlights system
Horn
Horns system
Hot at all times
Hot w/ acc1 relay energized
Hot w/ ig1 1 relay energized
Hrly
Hzsw
Ile
Ind
Instrument panel j/b (left side of dash)
Interior lights system
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c p40 (left "d" pillar)
Jf1
Jf2
Ko1
Lcty
Left front door lock motor (in driver's door)
Lin2
Lock key
Lsfl
Lsfr
Lswl
Lswr
Main body ecu (behind left side of dash)
Of1
Of2
P4 (left rear of luggage compt)
Pf4
Pnk
Rcty
Red
Right rear door courtesy light switch (at right rear "c" pillar)
Right rear door lock motor (in right rear door)
Trly
Ul1
Ul3
Unlock key
Yp1
Ypy1

Power Door Locks Wiring Diagram (2 of 5) for Lexus RX 450h 2012

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List of elements for Power Door Locks Wiring Diagram (2 of 5) for Lexus RX 450h 2012:

(center front of engine compt) engine hood courtesy switch
(center of dash) j/c g22
(left side of engine compt) wireless door lock buzzer
(top center of dash) j/c f66
D21
Detection unlock
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F5 (right kick panel)
Front power window regulator switch assembly
Gf3
Heater control panel (radio receiver assembly)
Hot at all times
If1
If2
Instrument panel j/b (left side of dash)
Ip j/b fuse 25a
J/c a63 (left side of dash)
J/c f92 (under center console)
J/c p39 (left "d" pillar)
Left front door courtesy light switch (at left "b" pillar)
Left rear door courtesy light switch (at left rear "c" pillar)
Lock
Pf1
Pnk
Red
Right front door lock motor (in front passenger's door)
Security ind
Stop fuse 7.5a
Stop light switch assembly (on brake pedal bracket)
Unlock

Power Door Locks Wiring Diagram (3 of 5) for Lexus RX 450h 2012

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List of elements for Power Door Locks Wiring Diagram (3 of 5) for Lexus RX 450h 2012:

+b1
+b2
12v
A80
A81
Air conditioning system
Clk
Clk+
Clk-
Computer data lines system
Cruise control system
Detection unlock
Door lock control switch
Drn2
Engine controls system
Engine room r/b 2 (left rear of engine compt)
Ep1
Ep2
Eti
Exterior lights system
Fctl
Gmt
Gmtg
Hot w/ igct main relay energized
Hsdn
Htm+
Htm-
Ig2
Ig2d
Igct 3 fuse 10a
Ilk
Ite
Iwp
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c f93 (left side of dash)
J1 (left "b" pillar)
Jf1
Jf2
Left rear door lock motor (in left rear door)
Lin1
Lp1
Mmt
Mmtg
Mrel
Mth+
Mth-
Multiplex network master switch assembly
Nca
Niwp
Nodd
Of1
Opm1
Opm2
Opst
P2 (left "b" pillar)
Pnk
Power distribution system
Power management control ecu (left side of dash)
Red
Req+
Req-
Right front door courtesy light switch (at right "b" pillar)
Rmt
Rmtg
Si1
Si2
Sio
St1-
Stb
Stp
Transmissions system
Vcp1
Vcp2
Vlo
Vpa1
Vpa2

Power Door Locks Wiring Diagram (4 of 5) for Lexus RX 450h 2012

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List of elements for Power Door Locks Wiring Diagram (4 of 5) for Lexus RX 450h 2012:

(left kick panel) f1
Abfs
Accd
Af5
Agnd
Am2 fuse 7.5a
Am21
Am22
Antenna coil
Anti-theft system
Bth+
Bth-
Ca1h
Ca1l
Ca2h
Ca2l
Ca3n
Ca3p
Canh
Canl
Ccs
Code
Combination meter assembly
Computer data lines system
Cruise control system
Drn4
E01
E02
E12
Ecu-b 1 fuse 10a
Electronic power steering system
Engine controls system
Engine room j/b assembly (left side of engine compt)
Engine room r/b assembly (on left side of engine compt)
Ethb
F15
F16
F63
F64
F97
F98
Gnd
Hot at all times
Ig1d
Imi
Immobi fuse 7.5a
Imo
Inds
Indw
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Lin2
Nca
Pnk
Power distribution system
Power management control ecu (left side of dash)
Power switch
Psok
Red
S-horn fuse 7.5a
S-horn relay
Security horn assembly (left front of engine compt)
Sftd
Sftu
Shift interlock system
Slp
Slr+
Smrb
Smrg
Smrp
Spdi
Ss1
Ss2
Ssw1
Ssw2
Swil
Thb
Transmissions system
Txct
Vc5

Power Door Locks Wiring Diagram (5 of 5) for Lexus RX 450h 2012

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List of elements for Power Door Locks Wiring Diagram (5 of 5) for Lexus RX 450h 2012:

(driver's door outside handle) left electrical key antenna
(left kick panel) f1
(left side of dash) j/c f93
(under center console) front indoor electrical key oscillator
A16
A54
Agnd
Ant1
Ant2
Anti-theft system
Canh
Canl
Certification ecu assembly (right side of dash)
Cg1b
Cg2b
Cg5b
Cg6b
Cg7b
Cg8b
Clg1
Clg2
Clg3
Clg4
Clg5
Clg6
Clg7
Clg8
Clgb
Code
Computer data lines system
Cutb
D39
Data
Door control receiver (right "c" pillar)
Ecu ig2 fuse 10a
F12
F18
F40
F5 (right kick panel)
F58
F65
Gauge 2 fuse 7.5a
Gnd
Hot w/ ig2 relay energized
If1
Im1
Ind
Indoor luggage compartment electrical key oscillator (left front of luggage compt)
Instrument panel j/b (left side of dash)
J/c f65 & f66 (top center of dash) f66
J/c f92 (under center console)
J/c f94 (right side of dash)
J/c o31 (right "d" pillar)
Jf1
Jn1
Lin
Of3
Outside luggage electrical key antenna (behind center of rear bumper)
Pf4
Pnk
Pos1
Pos2
Rco
Rda
Rear indoor electrical key oscillator (front of luggage compt)
Red
Right electrical key antenna (front passenger's door outside handle)
Rssi
Sen1
Sen2
Sens
Swil
Trg+
Trunk, tailgate, fuel doors system
Tsw1
Tsw2
Tsw5
Tsw6
Txct
Vc5
Vo1

POWER MIRRORS

Electrochromic Mirror Wiring Diagram, with Display for Lexus RX 450h 2012

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List of elements for Electrochromic Mirror Wiring Diagram, with Display for Lexus RX 450h 2012:

A18
Ec+
Ec-
Eci+
Eci-
Ecu-ig1 3 fuse 10a
F63
F64
Gf1
Gf2
Gnd
Gnd1
Hot w/ ig1 1 relay energized
If1
Ig1
Inner rear view mirror assembly
Instrument panel j/b (left side of dash)
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
Jf2
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
Overhead module
Pnk
Red
Right outer mirror control ecu assembly (in right front door)
Right outer rear view mirror assembly (on right front door)
Tg1
Tg2

Electrochromic Mirror Wiring Diagram, without Display for Lexus RX 450h 2012

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List of elements for Electrochromic Mirror Wiring Diagram, without Display for Lexus RX 450h 2012:

A18
Ec+
Ec-
Eci+
Eci-
Ecu-ig1 3 fuse 10a
F63
F64
Gf1
Gf2
Gnd
Gnd1
Hot w/ ig1 1 relay energized
If1
Ig1
Inner rear view mirror assembly
Instrument panel j/b (left side of dash)
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
Jf2
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
Overhead module
Pnk
Red
Right outer mirror control ecu assembly (in right front door)
Right outer rear view mirror assembly (on right front door)
Tg1
Tg2

Power Mirrors Wiring Diagram for Lexus RX 450h 2012

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List of elements for Power Mirrors Wiring Diagram for Lexus RX 450h 2012:

(in right front door)
12v
A11
A14
Bdr
Canh
Canl
Cann
Canp
Capn
Certification ecu assembly (right side of dash)
Computer data lines system
D21
D27
Ec+
Ec-
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F1 (left kick panel)
F11
F14
F5 (right kick panel)
F58
Fl door fuse 25a
Fr door fuse 25a
Gnd
Hot at all times
Hssr
Htr+
Htr-
If1
Instrument panel j/b (left side of dash)
J/c f93 (left side of dash)
Jf1
Jf2
Le1
Left outer mirror control ecu assembly (in left front door)
Left outer rear view mirror assembly (on left front door)
Lin2
Lm+r
Lmhr
Lmvr
Lvc
Main body ecu
Mirror adjust switch
Mirror auto retract switch
Mirror retract switch
Mirror select switch
Mr+
Mr-
Multiplex network master switch assembly
Pnk
Re1
Red
Right outer mirror control ecu assembly
Right outer rear view mirror assembly (on right front door)
Rm+r
Rmhr
Rmvr
Rvc
Trn+
Trn-
Vssr

POWER SEATS

Climate Control Seats Wiring Diagram for Lexus RX 450h 2012

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List of elements for Climate Control Seats Wiring Diagram for Lexus RX 450h 2012:

(left "b" pillar) p2
(right "b" pillar) o3
A/c amplifier assembly (right side of dash)
Bllh
Blrh
Ctb
D40
Ecu-ig1 3 fuse 10a
F51
Gnd
H12
Heater 1
Heater 2
Hot w/ ig1 1 relay energized
Hot w/ ig1 4 relay energized
Ill+
Ill-
Instrument panel j/b (left side of dash)
Interior
Interior lights system
J/c a18 (under driver's seat)
J/c a19 (under driver's seat)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c z22 (under front passenger's seat)
J/c z23 (under front passenger's seat)
Left seat back climate control blower (in driver's seat back)
Left seat cushion climate control blower assembly (under driver's seat)
Left seat heater control sub-assembly
Lh s-htr fuse 15a
Lights system
O3 (right "b" pillar)
Of3
Oz1
P2 (left "b" pillar)
Pf1
Pf2
Pnk
Pa1
Red
Rel1
Rh s-htr fuse 15a
Right seat back climate control blower blower (in front passenger's seat back)
Right seat cushion climate control blower assembly (under front passenger's seat)
Right seat heater control sub-assembly
S5-2
Seat back
Seat cushion
Seat heater switch
Sg-5
Sign
Svbp
Svdb
Svds
Svps
Svs5
Svsg
Swl
Swr
Thl
Thr

Driver Power Seat Wiring Diagram for Lexus RX 450h 2012

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List of elements for Driver Power Seat Wiring Diagram for Lexus RX 450h 2012:

(under driver's seat) j/c a18
Down
Fdwn
Front
Front vertical
Fup
H13
Hold
Hot at all times
Instrument panel j/b (left side of dash)
J/c a19 (under driver's seat)
Ldwn
Left front lumbar support forward & back motor assembly (in driver's seat back)
Left front power seat lift position motor assembly (under driver's seat)
Left front power seat reclining position motor assembly (in driver's seat back)
Left front power seat slide position motor assembly (under driver's seat)
Left front power seat switch
Left front power seat switch assembly
Left front power seat vertical position motor assembly (under driver's seat)
Lifter
Lup
P-seat lh fuse 30a
P2 (left "b" pillar)
Pnk
Pa1
Rclf
Rclr
Rear
Reclining
Release
Sldf
Sldr
Slide

Heated Seats Wiring Diagram for Lexus RX 450h 2012

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List of elements for Heated Seats Wiring Diagram for Lexus RX 450h 2012:

D40
Ecu-ig1 3 fuse 10a
H12
Heater
Heater 1
Heater 2
Hot w/ ig1 1 relay energized
Hot w/ ig1 4 relay energized
Ill+
Instrument panel j/b (left side of dash)
Interior lights system
J/c a18 (under driver's seat)
J/c a19 (under driver's seat)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c z22 (under front passenger's seat)
J/c z23 (under front passenger's seat)
Left seat heater control sub-assembly
Lh s-htr fuse 15a
O3 (right "b" pillar)
Of3
Oz1
P2 (left "b" pillar)
Pf1
Pnk
Pa1
Red
Rel1
Rh s-htr fuse 15a
Right seat heater control sub-assembly
Seat back
Seat cushion
Seat heater switch
Swl
Swr
Thl
Thr

Passenger Power Seat Wiring Diagram for Lexus RX 450h 2012

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List of elements for Passenger Power Seat Wiring Diagram for Lexus RX 450h 2012:

Csnf
Csnr
Down
Fdwn
Front
Front vertical
Fup
Hold
Hot at all times
Instrument panel j/b (left side of dash)
J/c z22 (under front passenger's seat)
J/c z23 (under front passenger's seat)
Ldwn
Lifter
Lup
O3 (right "b" pillar)
Of1
Oz1
P-seat rh fuse 30a
Pnk
Rclf
Rclr
Rear
Reclining
Red
Release
Right front lumbar support forward & back motor assembly (in front passenger's seat back)
Right front power seat cushion control motor assembly (under front passenger's seat)
Right front power seat lift position motor assembly (under front passenger's seat)
Right front power seat reclining position motor assembly (in passenger's seat back)
Right front power seat slide position motor assembly (under front passenger's seat)
Right front power seat switch
Right front power seat switch assembly
Right front power seat vertical position motor assembly (under front passenger's seat)
Right seat variable cushion switch
Sldf
Sldr
Slide

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Lexus RX 450h 2012

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List of elements for Power Top/Sunroof Wiring Diagram for Lexus RX 450h 2012:

(left "d" pillar) j/c p39
(left side of dash) j/c f93
A18
A54
Bzr
Canh
Canl
Certification ecu assembly (right side of dash)
Cls
Combination meter assembly
Computer data lines system
D27
Data
Door control receiver (right "c" pillar)
Dwn
Ecu-ig1 3 fuse 10a
F1 (left kick panel)
F13
F14
F16
F25
F58
F65
F66
Flcy
Gauge 2 fuse 7.5a
Gf1
Gf3
Gnd
Gnd2
H26
Hot at all times
Hot in on or start
Ig+
Ig3
Instrument panel j/b (left side of dash)
J/c a63 (left side of dash)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c o31 (right "d" pillar)
Jf1
Key lock
Key unlock
Left front door courtesy light switch assembly (at left "b" pillar)
Left front door w/ motor lock assembly (in driver's door)
Lin
Lin2
Main body ecu
Opn
Overhead module
Pnk
Rco
Rda
Red
Rssi
S/roof fuse 30a
Sliding roof control ecu (center front of roof)
Tg1
Tg2
Ul3
Wireless door lock buzzer (left side of engine compt)

POWER WINDOWS

Power Windows Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Power Windows Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

12v
A14
Becu
Bzr
Canh
Canl
Computer data lines system
D21
D27
Driver side auto switch
Driver side down switch
Driver side up switch
Dwn1
Ecu-b 1 fuse 10a
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F1 (left kick panel)
F11
F13
F14
F25
F40
F65
F66
Fl door fuse 25a
Flcy
Front passenger side control switch
Gnd2
H25
H26
Hot at all times
Instrument panel j/b (left side of dash)
Interior lights system
J/c a63 (left side of dash)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c p39 (left "d" pillar)
Jf1
Jf2
Led
Left front door courtesy light switch (at left "b" pillar)
Left front door w/ motor lock assembly
Left front power window regulator motor assembly (in driver's door)
Left rear side control switch
Lin
Lin1
Lin2
Main body ecu (behind left side of dash)
Multiplex network master switch assembly
Pnk
Red
Right rear side control switch
Ul3
Up1
Window lock switch
Wireless door lock buzzer (left side of engine compt)

Power Windows Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Power Windows Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

A11
A12
Auto
Auto down
Auto up
Canh
Canl
Certification ecu assembly (right side of dash)
Computer data lines system
Data
Door control receiver (right "c" pillar)
Door locks system
Dwn1
F5 (right kick panel)
F58
Fr door fuse 25a
Gnd
Hot at all times
If1
Instrument panel j/b (left side of dash)
Interior lights system
J/c o31 (right "d" pillar)
Ko1
Led
Left rear power window regulator motor assembly (in left rear door)
Left rear power window regulator switch assembly
Lin
Lock
Lp1
Manual down
Manual up
O3 (right "b" pillar)
Of1
Of3
P2 (left "b" pillar)
Pnk
Rco
Rda
Red
Right front power window regulator motor assembly (in front passenger's door)
Right front power window regulator switch assembly
Right rear power window regulator motor assembly (in right rear door)
Right rear power window regulator switch assembly
Rl door fuse 25a
Rr door fuse 25a
Rssi
Un lock
Up1

RADIO

Radio Wiring Diagram, with Navigation (1 of 5) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, with Navigation (1 of 5) for Lexus RX 450h 2012:

(under center floor console) g1
+b1
A30
A40
A50
A53
Acc
Af2
Amp1 fuse 30a
Amp2 fuse 30a
Ca+
Canh
Canl
Cgnd
Computer data lines system
D20
Dcm (telematics transceiver) (w/ lexus enform or safety connect) (under center console)
Ecu ig2 fuse 10a
Ecu-acc fuse 10a
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F32
Fg1
G20
G21
G25
G31
G34
Gauge 1 fuse 10a
Gf1
Gf3
Gnd1
Gps antenna
Hot at all times
Hot in on or acc
Hot in on or start
Ieee
Ieee connector (under center console)
Ill+
Ill-
Instrument cluster system
Instrument panel j/b (left side of dash)
Interior lights system
J/c f94 (right side of dash)
J/c g20 & g21 (center of dash)
J/c g22 (center of dash)
Macc
Mci+
Mci-
Mco+
Mco-
Mcvd
Min+
Min-
Mute
Navigation receiver assembly
Nca
Ntsf
Ntso
Og1
Og2
Op1
Overhead module
Parking brake switch assembly (left end of dash)
Pkb
Pnk
Rad 1 fuse 10a
Rad 3 fuse 15a
Rear television camera (lower center of back door)
Red
Red cv+
Sgd1
Sgnd
Sld1
Sld2
Sns2
Spd
Spi+
Spi-
Spo+
Spo-
Sw1
Sw2
Swg
Telephone microphone
Tg2
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Usb
Usbg
Usbv
Vmtf
Vor+
Vor-
Vot+
Vot-
Vv+
Vv-
W/ lexus enform
W/o lexus enform
Yp2

Radio Wiring Diagram, with Navigation (2 of 5) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, with Navigation (2 of 5) for Lexus RX 450h 2012:

(or red)
(under rear of center console) (if equipped) multi-media interface ecu
Acc
Computer data lines system
F40
Front speaker assembly 4
G1 (under center floor console)
G28
Gf2
Gnd
Gnd1
Gvif
Hf1
If2
Ill
Interior lights system
Jf1
Left front speaker assembly 2
Left front speaker assembly 3
Left steering pad switch
Mode
Multi-display assembly
Nca
Ntsc
Of2
Of3
Off hook
Og1
On hook
Op2
Pnk
Rear speaker assembly 3
Red
Right front speaker assembly 2
Right front speaker assembly 3
Right steering pad switch
Seek+
Seek-
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Twl+
Twl-
Twr+
Twr-
Tx+
Tx-
Tx1+
Tx1-
U12
Ug1
Ugd1
Ulo+
Uro+
Usd1
Vmt1
Voice
Volume +
Volume -
W/ lexus enform pnk
W/ parking assist
W/o lexus enform
W/o parking assist
Wf1+
Wf1-
Wf2+
Wf2-

Radio Wiring Diagram, with Navigation (3 of 5) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, with Navigation (3 of 5) for Lexus RX 450h 2012:

(right side of dash) parking assist ecu
+b2
Acc
Af10
Agnd
Computer data lines system
Ctr+
Ctr-
F54
F90
F91
Fg2
Fg3
Fl+
Fl-
Fr+
Fr-
G23
G24
G29
G30
Gf3
Gnd
Gnd2
Gvif
If2
Instrument cluster system
J/c o31 (right "d" pillar)
Jf1
Left front speaker assembly 1
Mi+
Mi-
Mo+
Mo-
Navigation receiver assembly
Nca
O15
O16
O17
O18
Of2
Og1
Og2
Pnk
Red
Right front speaker assembly 1
Rl+
Rl-
Rr+
Rr-
Sl+
Sl-
Sldi
Sldo
Spd
Sr+
Sr-
Stereo component amplifier (luggage compt)
Tmut
Tx+
Tx-
Txm+
Txm-
Usb
Usbg
Usbv
Va-
Val+
Var+
Vmtr
Vor+
Vor-
Vot+
Vot-
W/ parking assist
W/ rear seat entertainment system
W/o parking assist
W/o rear seat entertainment system
Wf1+
Wf1-
Wf2+
Wf2-
Wfl+
Wfl-
Wfr+
Wfr-
Wui
Wuo

Radio Wiring Diagram, with Navigation (4 of 5) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, with Navigation (4 of 5) for Lexus RX 450h 2012:

(center of dash) j/c g21
(center of dash) j/c g22
(or red)
+tw
-tw
Acc
Agnd
Ali
Alo
Ari
Aro
Asgn
Auxi
Auxo
Combination meter assembly
F16
G1 under center floor console)
G13
G14
Gf3
Gnd
Ill+
Ill-
Interior lights system
J/c f66 (top center of dash)
J/c f92 under center console
Ko1
Left quarter side speaker assembly (w/ 15 speaker)
Left rear speaker assembly
Left rear speaker assembly 2
Lp1
Mi+
Mi-
Mo+
Mo-
Nca
Ntsc
Op2
Pblt
Pnk
Radio receiver assembly
Red
Remote operation switch
Right quarter side speaker assembly (w/ 15 speaker)
Right rear speaker assembly
Right rear speaker assembly 2
Sld
Sldi
Sldo
Stereo jack adapter assembly 1
Stereo jack adapter assembly 1 (w/ multi-media interface ecu)
Ug2
Ug3
W/ multi-media interface ecu
W/o multi-media interface ecu
Wui
Wuo

Radio Wiring Diagram, with Navigation (5 of 5) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, with Navigation (5 of 5) for Lexus RX 450h 2012:

(center of dash) j/c g22
(top center of dash) j/c f66
+b1
Acan
Acc
Adim
Adp1
Adpg
Air
Aron
Computer data lines system
Door locks system
F14
F63
F64
G15
G16
Gf2
Gf3
Gnd
Gnd1
Gnd2
Gnd3
Gnd4
Gnd5
Headphone terminal
Heater control panel (radio receiver assembly)
Hp1l
Hp1r
Hp2l
Hp2r
Ig+
Ill+
Ill-
Interior lights system
J/c f63 & f64 (left side of dash)
J/c f92 (under center console)
J/c g22 (center of dash)
L1+
L1-
L2+
L2-
Left set back display
Main body ecu (behind left side of dash)
Md0
Mi+
Mi-
Mo+
Mo-
Multi-display controller sub-assembly (under center console)
Mut1
Mut2
Mute
Nca
Nts1
Nts2
Nts4
Ntsc
Og2
Op3
Oz3
Passenger air bag on/off indicator
Pbew
Pf3
Pnk
Pwr1
Pwr2
Pa2
R1+
R1-
R2+
R2-
Rear window defogger switch
Red
Right set back display
Sg1
Sg2
Sgn1
Sgn2
Sgn3
Sgn4
Sgn5
Sgn6
Sld1
Sld2
Slda
Sldb
Sldi
Sldo
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Uf1
Ug1
Va-
Val+
Var+
Vmt1
Vmt2
Vmtr
Vv+
Vv-
Vv1+
Vv1-
Wui

Radio Wiring Diagram, without Navigation (1 of 4) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, without Navigation (1 of 4) for Lexus RX 450h 2012:

(or red)
A27
A28
A30
A50
A53
Acc
Adim
Af10
Af2
Agnd
Ali
Alo
Amp1 fuse 30a
Ari
Aro
Asgn
Atx+
Atx-
Auxi
Auxo
Cdl+
Cdl-
Cdr+
Cdr-
Computer data lines system
Csld
D20
Ecu ig2 fuse 10a
Ecu-acc fuse 10a
Ecu-b 2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
G1 (under center floor console)
G10
G11
G20
G21
Gauge 1 fuse 10a
Gf1
Gf2
Gf3
Gnd
Hot at all times
Hot in on or acc
Hot in on or start
Ill+
Ill-
Instrument cluster system
Instrument panel j/b (left side of dash)
Interior lights system
Ivo+
Ivo-
J/c f94 (right side of dash)
J/c g20 & g21 (center of dash)
J/c g20 & g21 (center of dash) g20
J/c g22 (center of dash)
Macc
Min+
Min-
Multi-media interface ecu (if equipped) (under rear of center console)
Mut1
Mute
Nca
Of1
Og1
Og2
Pnk
Rad 3 fuse 15a
Radio 2 fuse 7.5a
Radio receiver assembly
Red
Sgnd
Sld
Sld1
Sns2
Spd
Stereo jack adapter assembly 1
Stereo jack adapter assembly 1 (multi-media interface ecu)
Sw1
Sw2
Swg
Tx+
Tx-
Tx1+
Tx1-
Tx2+
Tx2-
Txm+
Txm-
U10
U12
Ug1
Ug2
Ugd1
Ulo+
Ulo-
Uro+
Usdi
W/ multi-media interface ecu
W/o multi-media interface ecu

Radio Wiring Diagram, without Navigation (2 of 4) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, without Navigation (2 of 4) for Lexus RX 450h 2012:

(behind left side of dash) main body ecu
(center of dash) j/c g22
(left side of dash) j/c f63 & f64
(top center of dash) j/c f66
Acan
Acc
Adim
Clk1
Clk3
Computer data lines system
Door locks system
F14
F40
F63
F64
Fg1
Gf2
Gf3
Gnd
Heater control panel (radio receiver assembly)
Ill+
Ill-
Interior lights system
J/c f92 (under center console)
Left steering pad switch
Macc
Mco+
Mco-
Mode
Nca
Off hook
On hook
Overhead module
Pnk
Rear window defogger switch
Red
Right steering pad switch
Seek+
Seek-
Sns2
Spiral cable sub-assembly (in steering column)
Steering pad switch assembly
Telephone microphone
Tg2
Tx+
Tx-
Voice
Volume +
Volume -
W/ safety connect
W/ safety connect red
W/o safety connect
W/o safety connect nca

Radio Wiring Diagram, without Navigation (3 of 4) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, without Navigation (3 of 4) for Lexus RX 450h 2012:

+tw
-tw
Acc
Adim
Clk2
Clk4
Combination meter assembly
Computer data lines system
Dcm (telematics transceiver) (w/ safety connect) (under center console)
F16
Fg1
G25
Gf2
Gnd1
If2
Ig+
Ig2
Ill-
Interior lights system
Left rear speaker assembly
Left rear speaker assembly 2
Lin1
Lp1
Mci+
Mci-
Mco+
Mco-
Mcvd
Multi information display assembly
Mute
Nca
Og1
Op2
P-ab
Paon
Passenger air bag on/off indicator
Pbew
Pblt
Pnk
Rear speaker assembly 3 (w/ 12 speaker)
Red
Right front speaker assembly 2
Right front speaker assembly 3
Sgnd
Spi+
Spi-
Spo+
Spo-
Twr+
Twr-
Tx2+
Tx2-
W/ 12 speaker
W/ 9 speaker
W/ safety connect
W/o safety connect
Wf1+
Wf1-
Wf2+
Wf2-

Radio Wiring Diagram, without Navigation (4 of 4) for Lexus RX 450h 2012

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List of elements for Radio Wiring Diagram, without Navigation (4 of 4) for Lexus RX 450h 2012:

+b2
+tw
-tw
Acc
Computer data lines system
Ctr+
Ctr-
Fl+
Fl-
Fr+
Fr-
Front speaker assembly 4
Gf3
Gnd
Gnd2
Hf1
Ii1+
Ii1-
Instrument cluster system
J/c o31 (right "d" pillar)
Jf1
Jf2
Ko1
Left front speaker assembly 1
Left front speaker assembly 2
Left front speaker assembly 3
Mute
O16
O17
O18
O33
O34
Of2
Of3
Og1
Og2
Op2
Pnk
Red
Right front speaker assembly 1
Right rear speaker assembly
Right rear speaker assembly 2
Rl+
Rl-
Rr+
Rr-
Spd
Stereo component amplifier assembly (luggage compt)
Tmut
Twl+
Twl-
Tx+
Tx-
W/ 12 speaker
W/ 9 speaker
Wf1+
Wf1-
Wf2+
Wf2-
Wfl+
Wfl-
Wfr+
Wfr-

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Lexus RX 450h 2012

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List of elements for Shift Interlock Wiring Diagram for Lexus RX 450h 2012:

A81
Af5
Ca2h
Ca2l
Computer data lines system
D29
Da2
Ecu-ig1 1 fuse 10a
Engine room r/b 2 (left rear of engine compartment)
Engine room r/b assembly (on left side of engine compartment)
F66
F97
Hot at all times
Hot w/ ig1 1 relay energized
Hot w/ igct main relay energized
Igct 3 fuse 10a
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c f65 & f66 (top center of dash) f65
J/c f92 (under center console)
P position detection switch
Park/neutral position switch (on transmission)
Pnk
Power management control ecu (left side of dash)
Red
Shift lock control ecu sub-assembly (under center console, beside shift lever)
Shift lock solenoid
Sls+
Sls-
Stop fuse 7.5a
Stop light switch assembly (on brake pedal bracket)
Stp

Steering Column Wiring Diagram for Lexus RX 450h 2012

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List of elements for Steering Column Wiring Diagram for Lexus RX 450h 2012:

A54
Af10
Ca2h
Ca2l
Computer data lines system
Engine room r/b assembly (on left side of engine compartment)
F65
F97
F98
Gauge 2 fuse 7.5a
Gnd
Hot at all times
Hot w/ ig2 relay energized
Id code box (left side of dash)
Ig2
Ige
Instrument panel j/b (left side of dash)
J/c f65 & f66 (top center of dash) f66
J/c f92 (under center console)
J/c f93 (left side of dash)
Lin
Lin 1
Power management control ecu (left side of dash)
Red
Slp
Slp1
Slr+
Steering lock actuator assembly (on steering column)
Str lock fuse 20a

SUPPLEMENTAL RESTRAINTS

Pre-Collision Wiring Diagram for Lexus RX 450h 2012

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List of elements for Pre-Collision Wiring Diagram for Lexus RX 450h 2012:

Ab1
Ac1
Ca1l ca1h a90
Ca2h
Ca2l
Can l can h f16
Canh
Canl
Combination meter assembly
Computer data lines system
D30
Driving support ecu assembly (left end of dash)
Ecu-ig1 1 fuse 10a
Ecu-ig1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
F5 (right kick panel)
F56
F57
Hot at all times
Hot w/ ig1 1 relay energized
Ig1
Igb
Instrument panel j/b (left side of dash)
J/c a62 (left side of dash)
Left front seat outer belt assembly (base of left "b" pillar)
Lrdd
Lrrd
Millimeter wave radar sensor assembly (center front of engine compt)
Mol+
Mol-
Mor+
Mor-
Of1
Pf2
Pgnd
Pnk
Psb fuse 30a
Red
Right front seat outer belt assembly (base of right "b" pillar)
Seat belt control ecu (right side of dash)
Skid control ecu assembly (right side of dash)

Supplemental Restraint Wiring Diagram (1 of 2) for Lexus RX 450h 2012

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List of elements for Supplemental Restraint Wiring Diagram (1 of 2) for Lexus RX 450h 2012:

(left side of dash) driver air bag squib circuit
(lower left side of dash) lower instrument panel air bag assembly 1
(lower right side of dash) lower instrument panel air bag assembly 2
(right side of dash) front passenger side air bag squib circuit
+sl
+sr
-sl
-sr
A24
A26
A47
A49
A54
Abfs
Air
Air bag sensor assembly (below center console)
Aron
Bbl+
Bbl-
Bcl+
Bcl-
Bdl+
Bdl-
Canh
Canl
Computer data lines system
D2+
D2-
Dk+
Dk-
Ecu ig2 fuse 10a
F29
F5 (right kick panel)
F97
Fg1
Ff1
Gauge fuse 7.5a
Gsw
Gsw2
Gsw3
Heater control panel (radio receiver assembly)
Hot w/ ig2 relay energized
Icl+
Icl-
Ig2
Instrument panel j/b (left side of dash)
J/c f92 (under center console)
Jp1
Lbe+
Lbe-
Left curtain shield air bag assembly (left side of roof)
Left door side air bag sensor (base of left "b" pillar)
Left front seat inner belt assembly (under driver's seat)
Left front seat outer belt assembly (base of left "b" pillar)
Left front side air bag squib circuit (in driver's seat back)
Left rear air bag sensor (left "c" pillar)
Left rear side air bag squib circuit (under left rear seat)
Left side air bag sensor assembly
Lsp+
Lsp-
Multi information display assembly
Outer left rear seat belt assembly 1 (left "c" pillar)
P-ab
P10
P2+
P2-
Paon
Passenger air bag on/off indicator
Pk+
Pk-
Pl+
Pl-
Plr+
Plr-
Power management control ecu (left side of dash)
Pretensioner
Red
Rl+
Rl-
Seat position air bag sensor
Second step
Sfl+
Sfl-
Spiral cable sub- assembly (in f41 steering column)
Srl+
Srl-
W/ navigation
W/o navigation

Supplemental Restraint Wiring Diagram (2 of 2) for Lexus RX 450h 2012

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List of elements for Supplemental Restraint Wiring Diagram (2 of 2) for Lexus RX 450h 2012:

(base of right "b" pillar) right front seat outer belt assembly
(in left front corner of engine compt) left front air bag sensor
(in right front corner of engine compt) right front air bag sensor
(right "c" pillar) outer right rear seat belt assembly 1
(under center console) dcm (telematics transceiver)
+sl
+sr
-sl
-sr
A25
Af6
Air bag sensor assembly (below center console)
Bbr+
Bbr-
Bcr+
Bcr-
Bdr+
Bdr-
Bgnd
Bsw
Canh
Canl
Combination meter assembly
Computer data lines system
D22
D39
Dia
Ecu-b1 fuse 10a
Ecu-b2 fuse 7.5a
Engine room r/b assembly (on left side of engine compt)
F11
F15
F16
F40
F65
F66
Front in weight detection sensor sub assembly (under in front side of front passenger's seat)
Front out weight detection sensor sub assembly (under out front side of front passenger's seat)
Fsr+
Fsr-
G25
Gnd
Gsw
Hot at all times
Icr+
Icr-
Ig+
Instrument panel j/b (left side of dash)
Io1
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
J/c f94 (right side of dash)
J/c g22 (center of dash)
J/c o31 (right "d" pillar)
Main body ecu
Occupant detection ecu (under front passenger's seat)
Of1
Of3
Oz2
Pnk
Pr+
Pr-
Pretensioner
Prr+
Prr-
Rear in weight detection sensor sub assembly (under in rear side of front passenger's seat)
Rear out weight detection sensor sub assembly (under out rear side of front passenger's seat)
Red
Right curtain shield air bag assembly (right side of roof)
Right door side air bag sensor (base of right "b" pillar)
Right front seat inner belt assembly (under front passenger's seat)
Right front side air bag squib circuit (in front passenger's seat back)
Right rear air bag sensor (right ``c" pillar)
Right rear side air bag squib circuit (right "c" pillar)
Right side air bag sensor assembly
Rr+
Rr-
Sfr+
Sfr-
Sgd1
Sgd2
Sgd3
Sgd4
Sig1
Sig2
Sig3
Sig4
Srr+
Srr-
Svc1
Svc2
Svc3
Svc4

TRANSMISSION

Transmission Wiring Diagram (1 of 3) for Lexus RX 450h 2012

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List of elements for Transmission Wiring Diagram (1 of 3) for Lexus RX 450h 2012:

(left "d" pillar) j/c p65
+b2
A79
Ap3
Cbi
Cei
Clk+
Clk-
D44
D45
D46
D47
Da1
Dcdc fuse 150a
Dcdc-s fuse 7.5a
Dnr2
Drn1
Drn3
Drn4
Drn6
Drn7
Drn8
Drns
Engine room j/b assembly (left side of engine compt)
Front motor generator 1 (left front of engine compt)
Front motor generator 2 (left front of engine compt)
Fuse box (rear of luggage compt)
Gcs
Gcsg
Gmt
Gmtg
Gnd
Gnd1
Gnd2
Grf
Grfg
Gsn
Gsng
Hot at all times
Hsdn
Htm+
Htm-
Hv battery junction block assembly (left side of luggage compt) g3
Igct
Ilk
Ilki
Ilko
Interlock switch
Inverter assembly w/ converter (left side of engine compt)
J/c a58 (behind left headlight)
Mcs
Mcsg
Mmt
Mmtg
Mrf
Mrfg
Msn
Msng
Mth+
Mth-
Nca
Nodd
P3 (left ''c'' pillar)
Pnk
R-u
R-v
R-w
Rcs
Rcsg
Rear traction transaxle motor generator (at rear axle)
Red
Req+
Req-
Rmt
Rmtg
Rrf
Rrfg
Rsn
Rsng
Vlo
G10
G11
Ga2
Z35
Z36
Z37
Z38

Transmission Wiring Diagram (2 of 3) for Lexus RX 450h 2012

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List of elements for Transmission Wiring Diagram (2 of 3) for Lexus RX 450h 2012:

A80
A81
Amd
Ca1h
Ca1l
Cbi g1
Cei
Clk+
Clk-
Computer data lines system
Da1
Drn2
Engine room r/b 2 (left rear of engine compt)
Ep1
Ep2
F98
Gmt
Gmtg
Hsdn
Htm+
Htm-
Igct 2 fuse 10a
Igct 3 fuse 10a
Igct main relay
Ilk
Inverter assembly w/ converter (left side of engine compt)
J/c a62 (left side of dash)
J/c a63 (left side of dash)
Mmt
Mmtg
Mrel
Mth+
Mth-
Nca
Nodd
Pcu fuse 15a
Pnk
Power management control ecu (left side of dash)
R-u
R-v
R-w
Red
Req+
Req-
Rmt
Rmtg
Sftd
Sftu
St1-
Vcp1
Vcp2
Vlo
Vpa1
Vpa2
Ga2

Transmission Wiring Diagram (3 of 3) for Lexus RX 450h 2012

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List of elements for Transmission Wiring Diagram (3 of 3) for Lexus RX 450h 2012:

(left side of dash) j/c f93
(right side of dash) j/c f94
A11
A76
Ac1
Accelerator position sensor (on accelerator pedal assembly)
Ca2h
Ca2l
Canh
Canl
Combination meter assembly
Computer data lines system
D2 (top rear of engine)
D31
D39
Da2
Driving support ecu assembly (w/ dynamic radar cruise control) (left end of dash)
Ecm (right front of engine compt)
Ecu ig1 1 fuse 10a
Ecu ig2 fuse 10a
Ecu-b 1 fuse 10a
Engine room r/b assembly (on left side of engine compt)
Ep1
Ep2
Eta
F12
F15
F16
F30
F40
F65
F66
Ge01
Go2
Hot at all times
Hot w/ ig1 relay energized
Hot w/ ig2 relay energized
Hv r/b 1 fuse 30a
Igsw
Instrument panel j/b (left side of dash)
J/c a61 (left side of dash)
J/c a62 (left side of dash)
J/c a67 (behind right headlight)
J/c f65 & f66 (top center of dash)
J/c f92 (under center console)
J/c f93 (left side of dash)
Nca
Pnk
Red
Shift lever position sensor (on transmission)
St1-
Stop fuse 7.5a
Stop light switch assembly (on brake pedal bracket)
Stp-
Throttle w/ motor body (right rear of engine)
Transmission control switch (under front of center console)
Vcp1
Vcp2
Vcta
Vpa1
Vpa2
Vta
Vta1
Vta2