All Wiring Diagrams for Toyota Tundra 2003

AIR CONDITIONING

Heater Wiring Diagram for Toyota Tundra 2003

List of elements for Heater Wiring Diagram for Toyota Tundra 2003:

• (behind right side of dash, in hvac housing) blower resistor
• (in dash harness, above right kick panel) i16
• (on left side of engine compartment) engine room r/b
• Blower motor (under right side of dash, on hvac housing)
• Blower switch
• Defroster switch
• Driver's side j/b (behind lower left side of dash)
• Ea (on left front fender)
• Engine room r/b (on left side of engine compartment)
• Gauge fuse 10a
• Heater fuse 50a
• Heater relay
• Hot at all times
• Hot in on or start
• I25
• Integration control & panel
• Junction connector (behind right kick panel)
• Junction connector 1 (on left side of engine compt)
• Junction connector 18 (on left side of engine compt, under engine room r/b)
• Junction connector 3 (behind left kick panel)
• Junction connector 8 (behind upper left side of dash, near instrument cluster)
• Off
• Red
• Side of dash)

Manual A/C Wiring Diagram for Toyota Tundra 2003

List of elements for Manual A/C Wiring Diagram for Toyota Tundra 2003:

• (above right kick panel) i16
• (behind right side of dash, in hvac housing) blower resistor
• (on left side of engine compt, under engine room r/b) junction connector 18
• 3.4l
• 4.7l
• A/c dual pressure switch (3.4l) (in right front of engine compartment, behind headlight)
• A/c fuse 10a
• A/c lock sensor
• A/c magnetic clutch
• A/c magnetic clutch & lock sensor (on a/c compressor, on left side of engine)
• A/c thermistor (3.4l) (behind right side of dash, in hvac housing)
• A/cs
• Ac+2
• Acid/act
• Acmg/ac1
• Aind/act
• Air inlet control servo motor (under right side of dash, on hvac housing)
• Blower motor (under right side of dash, on hvac housing)
• Blower switch
• Defroster switch
• Driver's side j/b (behind lower left side of dash)
• E1 (in engine harness, inside engine room r/b)
• Ea (on left front fender)
• Engine control module (behind right side of dash, near "a" pillar)
• Engine room r/b (on left side of engine compartment)
• Engine room r/b (on left side of engine compt)
• Frs
• Gauge fuse 10a
• Gnd
• Hot at all times
• Hot in on or start
• Htr fuse 50a
• Htr relay
• I24
• I25
• Ig+
• Integraton control & panel
• Junction connector 1 (on left side of eng compt, under engine room r/b)
• Junction connector 13 (behind right kick panel)
• Junction connector 3 (behind left kick panel)
• Junction connector 8 (behind upper left side of dash, near instrument cluster)
• Lck1
• Mgc
• Off
• Rec
• Red

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Toyota Tundra 2003

List of elements for Anti-lock Brakes Wiring Diagram for Toyota Tundra 2003:

• (behind right kick panel) ii
• +bm
• +bs
• Abs 2 fuse 40a
• Abs 3 fuse 40a
• Abs actuator w/ ecu (in right rear corner of engine compt)
• Abs inverter
• Abs warning ind
• C11
• C13
• Combination meter
• D/g
• Data link connector 3 (below left side of dash, near center console)
• Driver side j/b (behind lower left side of dash)
• Ecu ig fuse 5a
• Engine controls, transmissions systems
• Engine room r/b (on left side of engine compt)
• Exi
• Fl+
• Fl-
• Fr+
• Fr-
• Gauge fuse 10a
• Gnd 1
• Gnd 2
• Hot at all times
• Hot in on or start
• Ig1
• Junction connector 10 (behind upper left side of dash, near instrument cluster)
• Junction connector 13 (behind right kick panel)
• Junction connector 5 & 8 (behind upper left side of dash, near instrument cluster)
• Left front abs speed sensor (mounted on left front wheel hub)
• Left rear abs speed sensor
• Pnk
• Rear abs speed sensor (on left side of rear axle)
• Red
• Right front abs speed sensor (mounted on right front wheel hub)
• Right rear abs speed sensor
• Rl+
• Rl-
• Rr+
• Rr-
• Sil
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Stp

ANTI-THEFT

Power Door Locks Wiring Diagram, with Keyless Entry (1 of 2) for Toyota Tundra 2003

List of elements for Power Door Locks Wiring Diagram, with Keyless Entry (1 of 2) for Toyota Tundra 2003:

• (ends in harness)
• (in body harness, in left front door) b3
• 3.4l
• 4.7l
• B7 (in body harness, in right front door)
• Diode (w/o drl) (behind upper left side of dash, near instrument cluster)
• Driver side j/b (behind lower left side of dash)
• Ecu ig fuse 5a
• G13
• Headlights system
• Horn fuse 10a
• Hot at all times
• Hot in on or start
• Integration relay
• J21
• J22
• J23
• Junction connector 10 (behind upper left side of dash, near instrument cluster)
• Junction connector 13 (behind right kick panel)
• Junction connector 21 & 22 (behind upper j22 left side of dash, near instrument cluster)
• Junction connector 21 & 22 (behind upper left side of dash, near instrument cluster)
• Junction connector 23 & 24 (behind left end of dash) j24
• Junction connector 4 (behind left kick panel)
• Junction connector 7 (behind upper left side of dash, near instrument cluster)
• L12
• L13
• Left door key lock & unlock lock switch
• Left door lock control lock switch (power window master switch)
• Left door lock motor & door unlock detection switch
• Lock
• N12
• Power fuse 30a
• Red
• Right door key lock & unlock unlk switch
• Right door lock control unlk switch
• Right door lock motor & door unlock detection switch
• Tail fuse 15a
• Unlk
• W/ drl
• W/o drl

Power Door Locks Wiring Diagram, with Keyless Entry (2 of 2) for Toyota Tundra 2003

List of elements for Power Door Locks Wiring Diagram, with Keyless Entry (2 of 2) for Toyota Tundra 2003:

• (behind left
• (behind left end of dash)
• (cut off)
• +b1
• +b2
• 3.4l
• 4.7l
• Act+
• Act-
• Bzr
• C11
• C12
• Combination meter
• Cty
• Dmlp
• Dswd
• Ecu-b fuse 5a
• Engine room r/b (on left side of engine compartment)
• Head
• Horn
• Hot at all times
• Ie (behind left kick panel)
• Ind
• Interior lights system
• J21
• J23
• J24
• Junction connector 21 (behind upper left side of dash, near instrument cluster)
• Junction connector 23 & 24
• Junction connector 7 (behind upper left side of dash, near instrument cluster)
• Kick panel)
• Ksw
• Lswd
• Lswp
• Lug
• Mi+
• Mi-
• Nca
• Pnk
• Security indicator & glass breakage sensor microphone
• Short connector (w/o tvip)
• Srly
• Starting/charging system
• T11
• T12
• T13
• Tail
• Tvip buzzer (on left rear of engine compt, near brake master cylinder)
• Tvip ecu (behind center of dash)
• Ul1
• Ul2
• Ul3
• Unlock warning switch
• W/ drl
• W/o drl

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Toyota Tundra 2003

List of elements for Computer Data Lines Wiring Diagram for Toyota Tundra 2003:

• (behind upper left side of dash, near instrument cluster) j/c 5
• (on left side of engine) (3.4l) ed
• 3.4l
• 4.7l
• A/b
• Abs actuator with ecu (in right rear corner of engine compt)
• Bat
• C13
• Center air bag sensor assembly (behind lower center of dash, on transmission tunnel)
• Combination meter
• D/g
• Data link connector 3 (below left side of dash, near center console)
• Driver's side j/b (behind lower left side of dash)
• Ec (4.7l) (on left side of firewall)
• Engine control module (behind right side of dash, near "a" pillar)
• Hot at all times
• If (behind left kick panel)
• J/c 3
• J/c 8 (behind upper left side of dash, near instrument cluster)
• Obd fuse 7.5a
• Sil
• Wfse

CRUISE CONTROL

3.4L

3.4L, Cruise Control Wiring Diagram for Toyota Tundra 2003

List of elements for 3.4L, Cruise Control Wiring Diagram for Toyota Tundra 2003:

• (a/t)
• (behind upper left side of dash, near instrument cluster) diode (a/t)
• (behind upper left side of dash, near instrument cluster) junction connector 10
• (behind upper left side of dash, near instrument cluster) junction connector 8
• (behind upper left side of dash, near instrument cluster) junction connector 9
• (combination meter)
• (m/t)
• (on bracket, above brake pedal) stoplight switch
• (on transmission)
• +bm
• A/t
• Acc fuse 15a
• Accel sensor (on left side of engine)
• Batt
• C11
• C13
• Cancel
• Ccs
• Cl+
• Cl-
• Combination meter
• Control circuit
• Cruise
• Cruise control clutch switch
• Cruise control ind
• Cruise control switch (combination switch)
• Driver's side j/b (behind lower left side of dash)
• E04
• Ea (on left side of engine)
• Ed (on left side of engine)
• Efi 1 fuse 15a
• Efi relay
• Engine control module (behind right side of dash, near "a" pillar)
• Engine room r/b (on left side of engine compt)
• Etcs fuse 15a
• F11
• G11
• Gauge fuse 10a
• Ge01
• Hot at all times
• Hot in acc or on
• Hot in on or start
• Ign fuse 5a
• Igsw
• Ih (behind right kick panel)
• Junction connector 1 (on left side of engine compt, under engine room r/b)
• Junction connector 12 (behind upper right side of dash, near instrument cluster)
• Junction connector 18 (on left side of engine compt, under engine room r/b)
• Junction connector 5 (behind upper left side of dash, near instrument cluster)
• Junction connector 9 (behind upper left side of dash, near instrument cluster)
• M/t
• Me01
• Mrel
• Nca
• Park/neutral position switch (on transmission)
• Red
• Res/ acc
• Set/ coast
• Sp1
• Speedometer
• St1-
• Stop fuse 15a
• Stp
• Throttle control motor (on throttle body)
• Throttle position sensor (on throttle body assembly)
• Vehicle speed sensor
• Vpa
• Vpa2
• Vta
• Vta2

4.7L

4.7L, Cruise Control Wiring Diagram for Toyota Tundra 2003

List of elements for 4.7L, Cruise Control Wiring Diagram for Toyota Tundra 2003:

• (behind upper left side of dash, near instrument cluster) diode (a/t)
• (behind upper left side of dash, near instrument cluster) junction connector 10
• (behind upper left side of dash, near instrument cluster) junction connector 8
• (behind upper left side of dash, near instrument cluster) junction connector 9
• (on bracket, above brake pedal) stoplight switch
• (on left front fender)
• (on transmission)
• +b2
• +bm
• Acc fuse 15a
• Accelerator pedal position sensor (behind left side of dash, above accelerator pedal)
• Batt
• C11
• C12
• C13
• Cancel
• Ccs
• Combination meter
• Control circuit
• Cruise
• Cruise control ind
• Cruise control switch (combination switch)
• D position switch (park/neutral position switch) (on transmission)
• Driver's side j/b (behind lower left side of dash)
• E01
• E02
• Eb (on right rear of engine)
• Ec (on left side of firewall)
• Ecc
• Efi 1 fuse 15a
• Efi relay
• Engine control module (behind right side of dash, near "a" pillar)
• Engine room r/b (on left side of engine compt)
• Epa
• Epa2
• Etcs fuse 15a
• F11
• G11
• Gauge fuse 10a
• Ge01
• Hot at all times
• Hot in acc or on
• Hot in on or start
• I3 (in dash harness, behind upper left center of dash)
• Ign fuse 5a
• Igsw
• Ih (behind right kick panel)
• J/c 18 (under engine room r/b)
• Junction connector (under engine room r/b)
• Junction connector 5 (behind upper left side of dash, near instrument cluster)
• Junction connector 8 (behind upper left side of dash, near instrument cluster)
• Junction connector 9 (behind upper left side of dash, near instrument cluster)
• Mrel
• Red
• Resume/ accel
• Set/ coast
• Spd
• Speedometer
• St1-
• Stop fuse 15a
• Stp
• Throttle position sensor (on throttle body assembly)
• Vcp2
• Vcpa
• Vehicle speed sensor (combination meter)
• Vpa
• Vpa2
• Vta1
• Vta2
• W/ door lock control
• W/o door lock control

ENGINE PERFORMANCE

3.4L

3.4L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra 2003

List of elements for 3.4L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra 2003:

• (upper left side of dash) diode
• +bm
• 4wd
• A/c system
• A/t indicator light switch
• A/t oil temp
• Ac1
• Acc fuse 15a
• Act
• Batt
• C11
• C12
• C13
• C14
• Ccs
• Combination meter
• Control unit
• Cruise control system
• Data link connector 3 (left side of dash)
• Driver side j/b
• Driver side j/b (behind left side of dash)
• Engine control module (behind right side of dash)
• F/ps
• F11
• G11
• Gauge fuse 10a
• Hot in run or acc
• Hot in run or start
• Hot in start
• Ie (behind left kick panel)
• Ig+
• Ign fuse 5a
• Igsw
• J/c 12 (right side of dash)
• J/c 5 (behind upper left side of dash)
• J/c 5 (w/ cruise control) (behind upper b left side of dash)
• J/c 8 (upper left side of dash)
• J/c 9 (behind upper left side of dash)
• Malf ind lamp
• Mrel
• Nsw
• O/d main switch (center of dash)
• O/d off ind
• Odlp
• Odms
• Oilw
• Pnk
• Red
• Sil
• Sp1
• St-
• Sta
• Sta fuse 5a
• Starting/charging system
• Stp
• Tfn
• Transmission system (4wd circuit)
• Vehicle speed sensor (on trans)
• Wfse

3.4L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra 2003

List of elements for 3.4L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra 2003:

• Air fuel ratio sensor (bank 1, sensor 1) (on exhaust system)
• Electronically controlled transmission solenoid
• Engine room r/b (left side of engine compt)
• Etcs fuse 15a
• Heated oxygen sensor (bank 1, sensor 2) (on exhaust system)
• Hot at all times
• I3 (dash harn, behind right side of dash)
• Mass airflow meter (on air cleaner housing)
• Pnk
• Red
• Vehicle speed sensor (a/t) (on trans)

3.4L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra 2003

List of elements for 3.4L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra 2003:

• (above accelerator pedal) accelerator pedal position sensor
• (behind right side of dash) engine control module
• (dash harn, behind right side of dash)
• (left side of engine) ed
• (on throttle body assembly) throttle position sensor
• (on throttle body) throttle control motor
• (top left of engine) engine coolant temperature sensor
• A/t oil temperature sensor (on transmission)
• Af1+
• Af1-
• E red
• E01
• E02
• E03
• E04
• E2g
• Efi 1 fuse 15a
• Efi 2 fuse 10a
• Engine room r/b (left side of engine compt)
• Ge01
• Hot at all times
• Ht2b
• Htaf1
• J/c 1 (under engine room r/b)
• J/c 14, j/c 15 (under driver's seat)
• J14
• J15
• Knk1
• Knk2
• Knock sensor 1 (right side of engine)
• Knock sensor 2 (left side of engine)
• Me02
• Nca
• Oil
• Ox2b
• Pnk
• Ptnk
• Red
• Tha
• Thw
• Vapor pressure sensor (left rear corner of eng compt)
• Vsv (canister closed valve) (under left side of vehicle)
• Vsv (evap) (rear of engine)
• Vta

3.4L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra 2003

List of elements for 3.4L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra 2003:

• (behind left side of dash) driver side j/b
• (left front fender) ea
• (right side of engine compt) igniter
• (right side of engine compt) noise filter
• (top right of engine)
• Acc
• C/opn relay
• Camshaft position sensor (right front of engine)
• Ccv
• Cl+
• Cl-
• Crankshaft position sensor (left front of engine)
• Ed (left side of engine)
• Efi relay
• Engine control module (behind right side of dash)
• Engine room r/b (left side of engine compt)
• Evp1
• Fuel injectors
• Fuel pump (in fuel tank)
• Hot at all times
• I3 (dash harn, right side of dash) jc
• Igf
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition switch
• Igt1
• Igt2
• Igt3
• J/c 18 (left side of engine compt)
• J/c 3 (left kick panel)
• J/c 8 (behind upper left side of dash)
• Lock
• Ne+
• Ne-
• Power steering oil pressure switch (right front of engine)
• Psw
• Red
• Run
• Slt+
• Slt-
• Sp2+
• Sp2-
• Start
• Vpa
• Vpa2
• Vta2

4.7L

4.7L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra 2003:

• (behind left side of dash) driver side j/b
• (dash harn, behind right side of dash)
• A/c system
• Acc
• Accr
• Camshaft position sensor (left front of engine)
• Ccv
• Crankshaft position sensor (left front of engine)
• E01
• E02
• E03
• E2g
• Eb (right rear of engine)
• Ec (left side of firewall)
• Engine control module (behind right side of dash)
• Engine coolant temperature sensor (right front of engine)
• Fpr
• Fuel injectors
• G2+
• G2-
• Ge01
• Hot at all times
• Igf1
• Igf2
• Igniters & ignition coils
• Ignition switch
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• Igt7
• Igt8
• J/c 19 (behind upper right side of dash)
• Lck1
• Lock
• Mass airflow meter (on air cleaner housing)
• Me01
• Nca
• Ne+
• Ne-
• Noise filter
• Nsw
• Pnk
• Power distribution system
• Prg
• Red
• Run
• Sta
• Start
• Starting/charging system
• Stsw
• Tha
• Throttle position sensor (on throttle body assembly)
• Thw
• Vta1
• Vta2

4.7L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra 2003:

• (center of left front fender) ea
• (dash harn, behind right side of dash)
• (on bracket, above brake pedal) stoplight switch
• A/t indicator light switch (integral to park/neutral position switch) (on trans)
• A/t oil temp
• Acc fuse 15a
• C j/c 10 (upper left side of dash)
• C/opn relay
• C11
• C12
• C13
• C14
• Combination meter
• Control unit
• Diode (a/t) (upper left side of dash)
• Driver side j/b
• Driver side j/b (behind left side of dash)
• Ec (left side of firewall)
• Efi relay
• Engine room r/b (left side of engine compt)
• Fuel pump (in fuel tank)
• Fuel pump relay
• Fuel pump resistor (left side of engine compt)
• G11
• Gauge fuse 10a
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Idle-up diode (behind right side of dash)
• Ie (behind left kick panel)
• Ig+
• Integration relay
• J/c 10 (behind upper left side of dash)
• J/c 11 (upper right side of dash)
• J/c 12 (right side of dash)
• J/c 3 (behind left kick panel)
• J/c 8 (upper left side of dash)
• J/c 9 (behind upper left side of dash)
• Malf ind lamp
• O/d off ind
• Red
• Stop fuse 15a
• Tail fuse 15a
• Vehicle speed sensor (on trans)
• Vsv (evap) (left side of engine)

4.7L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra 2003:

• (under left side of vehicle) vapor pressure sensor
• +bm
• A/c system
• A/cs
• Acld
• Acmg
• Ccs
• Cruise control system
• Driver side j/b (behind left side of dash)
• Efi 1 fuse 15a
• Engine control module (behind right side of dash)
• Engine room r/b (left side of engine compt)
• Etcs fuse 15a
• Hot at all times
• Hot in start
• Ie (behind left kick panel)
• J/c 14, j/c 15 (under driver's seat)
• J/c 9 (upper left side of dash)
• J14
• J14 h
• J15
• O/d main switch (center of dash)
• Odlp
• Oilw
• Red
• Spd
• St1-
• Sta fuse 5a
• Stp
• The
• Trans- mission system
• Vapor pressure sensor (left rear corner of eng compt)

4.7L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra 2003:

• (above accelerator pedal) accel pedal position sensor
• (dash harn right side of dash)
• (dash harn right side of dash) i5
• (left side of trans) o/d direct clutch speed sensor
• (left side of trans) vehicle speed sensor
• (on transmission)
• (upper left side of dash) j/c 5
• +b2
• 4wd
• A/t oil temperature sensor
• Batt
• D red
• Data link connector 3 (under left side of dash, near center console)
• Driver side j/b (behind left side of dash)
• Efi 2 fuse 15a
• Electronically controlled transmission solenoid (in transmission)
• Els
• Engine control module (behind right side of dash)
• Engine room r/b (left side of engine compt)
• Epa
• Epa2
• F/ps
• F11
• Heated oxygen sensor (bank 1 sensor 1) (on exhaust system)
• Heated oxygen sensor (bank 1 sensor 2) (on exhaust system)
• Heated oxygen sensor (bank 2 sensor 1) (on exhaust system)
• Heated oxygen sensor (bank 2 sensor 2) (on exhaust system)
• Hot in run or start
• Ht1a
• Ht1b
• Ht2a
• Ht2b
• Ign fuse 5a
• Igsw
• J/c 1 (left side of engine compt)
• J/c 5 (upper left side of dash)
• J/c 8 (upper left side of dash)
• Knk1
• Knk2
• Knock sensor 1 (left side of engine)
• Knock sensor 2 (right side of engine)
• Mrel
• Nca
• Nco+
• Nco-
• Odms
• Ox1a
• Ox1b
• Ox2a
• Ox2b
• Pnk
• Ptnk
• Red
• Sil
• Slt
• Slt+
• Slt-
• Sp2+
• Sp2-
• Star
• Starting/charging system
• Tach
• Thoc
• Transmission system
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Wfse

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Toyota Tundra 2003

List of elements for Back-up Lamps Wiring Diagram for Toyota Tundra 2003:

• (a/t)
• (behind upper left side of dash, near instrument cluster) diode
• (below left rear of left front seat)
• (m/t)
• A j24
• A/t
• A/t m/t
• Acc fuse 15a
• B10
• Back- up light
• Back-up light relay (behind left side of dash, below driver side j/b)
• Back-up light switch (m/t) (on transmission)
• Back-up light switch (park/ neutral position switch) (a/t) (on transmission)
• Driver's side j/b (behind lower left side of dash)
• G11
• Gauge fuse 10a
• Hot in acc or on
• Hot in on or start
• Ie (behind left kick panel)
• J/c 12 (behind upper right side of dash, near passenger's air bag)
• J/c 8 (behind upper left side of dash, near instrument cluster)
• J/c 9 (behind upper left side of dash, near instrument cluster)
• J23 a
• Junction connector 23 & 24 (behind left end of dash)
• Left rear combination light
• M/t
• Right rear combination light
• Trailer socket
• W/ door lock control
• W/o door lock control

Exterior Lamps Wiring Diagram for Toyota Tundra 2003

List of elements for Exterior Lamps Wiring Diagram for Toyota Tundra 2003:

• (behind left kick panel)
• (behind left kick panel) ie
• (in body harness, behind left side of rear bumper)
• (w/o drl)
• A j15
• A j22
• B10
• Bl (below left rear of left front seat)
• C11
• C12
• C13
• Comb- ination meter
• Combination switch
• D10
• D11
• Driver's side j/b (behind lower left side of dash)
• E11
• Ea (on left front fender)
• Ehw
• Engine room r/b (on left side of engine compt)
• From driver side j/b (diagram 1 of 1)
• Gnd
• H12
• H13
• Haz fuse 20a
• Head
• High mounted stoplight
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• Integration control & panel
• Integration relay
• J/c 1 (left side of engine compt)
• J/c 10 (behind upper left side of dash)
• J/c 14 & 15 (under driver's seat)
• J/c 18 (on left side of engine compt)
• J/c 21 & 22 (behind upper left side of dash)
• J/c 23 & 24 (behind left end of dash)
• J/c 3
• J14 a
• J14 c
• J23
• J24
• L13
• Left front combination light
• Left license plate light
• Left rear combination light
• Light ctrl switch
• N4 (w/ drl)
• Off
• Park
• Right front combination light
• Right license plate light
• Right rear combination light
• Stop
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Tail
• Tail fuse 15a
• To j/c 1 (diagram 1 of 1)
• Towing converter
• Turn
• Turn fuse 5a
• Turn signal flasher (behind left side of dash, below driver side j/b)
• Turn signal ind
• Turn signal switch

Trailer Tow Wiring Diagram for Toyota Tundra 2003

List of elements for Trailer Tow Wiring Diagram for Toyota Tundra 2003:

• (w/ towing) sub batt relay
• B10
• Bl (below left rear of left front seat)
• Driver's side j/b (behind lower left side of dash)
• Ea (on left front fender)
• Engine room r/b (on left side of engine compt)
• Except
• Exterior lights circuit
• Gnd
• Head
• Hot at all times
• Ie (behind left kick panel)
• Ih (behind right kick panel)
• Integration relay
• J/c 10 (behind upper left side of dash, near instrument cluster)
• J/c 10 (behind upper left side of dash, near instrument cluster) e
• J/c 12 (behind upper right side of dash, near passenger's air bag) e
• J/c 18 (on left side of engine compt, under engine room r/b)
• J/c 2 (on left side of engine compt, under engine room r/b)
• J/c 21 & 22 (behind upper left side of dash)
• J/c 23 & 24 (behind left end of dash)
• J/c 3 (behind left kick panel)
• J/c 8 (behind upper left side of dash, near instrument cluster)
• J21
• J22
• J23
• J24
• Light control switch (combination switch)
• Ltin
• Ltot
• Off
• Option connector (w/ towing)
• Red
• Rtin
• Rtot
• Stin
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Sub batt fuse 30a
• Tail
• Tail fuse 15a
• Tow brk fuse 30a
• Tow tail fuse 30a
• Tow tail relay
• Towing
• Towing converter
• Towing fuse 30a
• Trailer socket

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 2) for Toyota Tundra 2003

List of elements for Ground Distribution Wiring Diagram (1 of 2) for Toyota Tundra 2003:

• (left side of engine compt,
• 4wd
• 4wd control ecu
• A/c pressure switch
• Abs actuator with ecu
• Add actuator
• B4 (in body harness, at left "a" pillar)
• B7 (body harness, in right front door)
• Bk (base of right rear door)
• Blower resistor
• Blower switch
• Brake fluid level switch
• Cigarette lighter
• Combination switch
• Data link connector 3
• Daytime running lights resistor
• Driver side j/b (behind lower left side of dash)
• Drl no.4 relay
• Ea (left front fender)
• Efi relay
• Engine room r/b (left side of engine compartment)
• Fog relay
• Fuel pump
• High mount stop light and cargo light
• Htr relay
• I2 (dash harness behind upper left side of dash)
• I25
• I3 (dash harness behind right side of dash)
• I4 (dash harness behind upper right side of dash)
• Ig (below center of dash)
• Integration control and panel
• Integration relay
• J/c 13 (behind right kick panel)
• J/c 18
• J/c 2
• J/c 3 (behind left kick panel)
• Left front fog light
• Left front park/turn light
• Left lower rear door courtesy switch
• Light control switch
• M/t
• Parking brake switch
• Personal light
• Power outlet
• Power outlet relay
• Power relay
• Power window control switch (back window)
• Radio and player
• Right door key lock/ unlock switch
• Right door lock control switch
• Right door lock motor and door unlock detection switch
• Right front fog light
• Right front park/turn light
• Right mirror heater
• Right rear upper door courtesy switch
• Right vanity light
• St relay
• Sub batt relay
• Towing package
• Transfer 4wd position detection switch
• Transfer neutral position detection switch
• Transfer position detection switch
• Transfer shift actuator
• Transmission control relay
• Turn signal switch
• Under engine room r/b)
• V6 a/t 4wd
• V8 4wd
• W/ drl
• W/o drl
• Washer level sensor
• Wiper motor
• Wiper/ washer switch

Ground Distribution Wiring Diagram (2 of 2) for Toyota Tundra 2003

List of elements for Ground Distribution Wiring Diagram (2 of 2) for Toyota Tundra 2003:

• (body harness, behind left side of rear bumper)
• B/l (below left rear of left front seat)
• B2 (body harness in left front door)
• B3 (body harness in left front door)
• Backup light relay
• Bench seat
• Bj (at base of left rear door)
• C11
• C12
• Center airbag sensor assembly
• Clutch start cancel switch
• Clutch start switch
• Combination meter
• Combination switch
• Cruise control switch
• Data link connector
• Data link connector 3
• Drivers power seat control switch
• Drivers seat lumbar support control switch
• Eb (right rear of engine)
• Ec (left side of firewall)
• Ed (left side of engine)
• Engine control module
• Except towing package
• Fuel sender
• Glove box light
• Heated oxygen sensor bank 1 sensor 2
• I1 (dash harness, behind upper left end of dash)
• I3 (dash harness behind right side of dash)
• Ie (behind left kick panel)
• Igniter and ignition coil no.1
• Igniter and ignition coil no.2
• Igniter and ignition coil no.3
• Igniter and ignition coil no.4
• Igniter and ignition coil no.5
• Igniter and ignition coil no.6
• Igniter and ignition coil no.7
• Igniter and ignition coil no.8
• Ignitior
• Ih (behind right kick panel)
• Integration relay
• J/c 17 (under drivers seat)
• J/c 23
• J/c 24
• J/c 8 (upper left side of dash)
• Left buckle switch
• Left front door key lock and unlock switch
• Left front door lock motor and door lock detection switch
• Left license plate lamp
• Left mirror heater
• Left rear combination lamp
• Left rear lower door courtesy switch
• Left rear upper door courtesy switch
• Mirror heater switch
• Noise filter
• O/d main switch
• Option connector
• Park neutral position switch
• Power window master switch
• Remote control mirror switch
• Rheostat
• Right buckle switch
• Right license plate lamp
• Right rear combination lamp
• Right seat belt warning occupant detection sensor and buckle switch
• Security indicator and glass breakage sensor microphone
• Short connector (tvip)
• Short pin
• T11
• Towing converter
• Towing package
• Trailer socket
• Turn signal flasher
• Tvip buzzer
• Tvip ecu
• W/ power seat

HEADLIGHTS

Headlights Wiring Diagram, with DRL for Toyota Tundra 2003

List of elements for Headlights Wiring Diagram, with DRL for Toyota Tundra 2003:

• (3.4l)
• (4.7l)
• (on left front fender) ea
• (on left side of engine compt, under engine room r/b) j/c 18
• A/t
• Brake fluid level warning switch (on brake fluid reservoir)
• C11
• C12
• C15
• Combination meter
• Combinaton switch
• Daytime running light resistor (on left side of engine compt, near battery)
• Dimmer relay
• Dimmer switch
• Driver's side j/b (behind lower left side of dash)
• Drl 4 relay
• Ea (on left front fender)
• Ecu ig fuse 5a
• Engine room r/b (on left side of engine compt)
• Flash
• Fog fuse 20a
• Fog relay
• Foglight switch
• H-lp relay
• Head
• High
• High beam ind
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• If (behind left kick panel)
• Ih (behind right kick panel)
• Ii (behind left kick panel)
• Integration relay
• J/c 13 (behind right kick panel)
• J/c 18 (on left side of engine compt, under engine room r/b)
• J/c 2 (on left side of engine compt, under engine room r/b)
• J/c 21 & 22 (behind upper left side of dash, near instrument cluster)
• J/c 23 & 24 (behind left end of dash)
• J/c 3 (behind left kick panel)
• J/c 4 (behind left kick panel)
• J/c 7 (behind upper left side of dash, near instrument cluster)
• J/c 8 (behind upper left side of dash, near instrument cluster)
• J21
• J22
• J23
• J24
• Left front door courtesy switch
• Left front foglight
• Left head- light
• Left hi head fuse 10a
• Left lo head fuse 10a
• Light control switch
• Low
• M/t
• N13
• N15
• N24
• Off
• Parking brake switch (inside upper right side of steering column)
• Parking brake switch (on base of park brake pedal bracket, near kick panel)
• Pnk
• Red
• Right front foglight
• Right headlight
• Right hi head fuse 10a
• Right lo head fuse 10a
• Starting/ charging system
• Tail
• Tail fuse 15a
• W/ door lock control
• W/o door lock control

Headlights Wiring Diagram, without DRL for Toyota Tundra 2003

List of elements for Headlights Wiring Diagram, without DRL for Toyota Tundra 2003:

• (on left front fender) ea
• C11
• C12
• Combination meter
• Combination switch
• Connector 11 (behind upper right side of dash, near passenger's air bag)
• Dimmer switch
• Driver's side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compt)
• Flash
• Fog relay
• Foglight switch
• Fr fog fuse 20a
• H-lp relay
• Head
• High
• High beam indicator
• Hot at all times
• Ie (behind left kick panel)
• If (behind left kick panel)
• Ii (behind right kick panel)
• Integration relay
• J23
• J24
• Junction
• Junction connector 13 (behind right kick panel)
• Junction connector 18 (on left side of engine compt, under engine room r/b)
• Junction connector 2 (on left side of engine compt, under engine room r/b)
• Junction connector 23 & 24 (behind left end of dash)
• Junction connector 3 (behind left kick panel)
• Junction connector 7 (behind upper left side of dash, near instrument cluster)
• Left front foglight
• Left head fuse 10a
• Left headlight
• Light control switch
• Low
• Off
• Pnk
• Red
• Right front foglight
• Right head fuse 10a
• Right headlight
• Tail
• W/ door lock control
• W/o door lock control

HORN

Horn Wiring Diagram for Toyota Tundra 2003

List of elements for Horn Wiring Diagram for Toyota Tundra 2003:

• 3.4l w/ door lock control w/o drl, 4.7l w/o drl 3.4l w/o door lock control w/ drl, 3.4l w/ door lock control w/ drl 4.7l w/ drl
• 3.4l w/ door lock control, 4.7l
• 3.4l w/o door lock control, w/o drl
• Combination switch
• Driver side j/b (behind lower left side of dash)
• Horn fuse 10a
• Horn switch
• Hot at all times
• Integration relay
• J/c 10 (behind upper left side of dash, near instrument cluster)
• L12
• Left horn
• N12
• Right horn

INSTRUMENT CLUSTER

Clock Wiring Diagram for Toyota Tundra 2003

List of elements for Clock Wiring Diagram for Toyota Tundra 2003:

• Acc
• Acc fuse 15a
• Dome fuse 10a
• Driver side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compartment)
• Gnd
• Hot at all times
• Hot in acc and on
• I24
• I25
• Ill+
• Integration control & panel
• Integration relay
• J/c 10 (behind upper left side of dash, near instrument cluster)
• J/c 13 (behind right kick panel)
• J/c 23 & 24 (behind left end of dash)
• J23
• J24
• Tail fuse 15a

Instrument Cluster Wiring Diagram for Toyota Tundra 2003

List of elements for Instrument Cluster Wiring Diagram for Toyota Tundra 2003:

• (3.4l)
• (4.7l)
• (4.7l) (3.4l)
• (behind left end of dash)
• (behind lower left side of dash)
• (behind right kick panel) ih
• (behind upper left end of dash)
• (on left front fender) ea
• (on transmission) vehicle speed sensor (combination meter)
• (w/ drl)
• (w/ tachometer)
• (w/o drl)
• (w/o tachometer)
• 4.7l
• 4hi 4wd
• 4lo
• 4wd control ecu (behind lower right side of dash)
• A/t oil temp ind
• A/t p (3.4l)
• A10
• A11
• A12
• A13
• Abs ind
• Anti-lock brakes system
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• Brake fluid level warning switch (on brake fluid reservoir)
• Brake ind
• C10
• C11
• C12
• C13
• C14
• Charge ind
• Combination meter
• Cruise control system
• Cruise ind
• D10
• Dome fuse 10a
• Door ind
• Driver side j/b
• Engine control module (near ``a" pillar)
• Engine controls system
• Engine room r/b (on left side of engine compartment)
• Exterior lights system
• F10
• Fuel
• Fuel ind
• Fuel pump & sender (in fuel tank)
• Gauge fuse 10a
• Headlights system
• High beam ind
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• If (behind left kick panel)
• Ign fuse 5a
• Igniter
• Ii (behind right kick panel)
• Illum
• Integration relay
• Interior
• Interior lights system
• J/c 13 (behind right kick panel)
• J/c 23 & 24
• J/c 3 (behind left kick panel)
• J23
• J24
• Junction connector (under engine room r/b)
• Junction connector 8 (near instrument cluster)
• Junction connector 9 (near instrument cluster)
• L11
• Lcd
• Left turn ind
• Lights
• Malfunction indicator lamp
• N11
• N13
• O/d off ind
• Of dash)
• Oil
• Oil pressure switch (on left front of engine)
• Panel)
• Parking brake switch (a/t) (inside upper
• Parking brake switch (m/t) (near kick
• Red
• Right side of
• Right turn ind
• Seat belt ind
• Spd
• Speedometer
• Srs ind
• Starting/charging system
• Steering column)
• System
• Tach
• Tachometer
• Transmissions system
• Voltmeter
• W/ drl
• W/o drl
• Warning system
• Washer ind
• Water temperature
• Water temperature sender (3.4l: on rear of engine) (4.7l: on right front of engine)
• Wiper/washer system

INTERIOR LIGHTS

Cargo Light Wiring Diagram for Toyota Tundra 2003

List of elements for Cargo Light Wiring Diagram for Toyota Tundra 2003:

• C11
• C12
• C13
• Cargo light (high mounted stop light)
• Cargo lp fuse 5a
• Combination meter
• Driver side j/b (behind lower left side of dash)
• Driver's side j/b (behind lower left side of dash)
• Gauge fuse 10a
• Gnd
• H10
• Hot at all times
• Hot in on or start
• I24
• I25
• Ih (behind right kick panel)
• Integration control & panel
• Integration relay
• J/c 13 (behind right kick panel)
• J/c 3 (behind left kick panel)
• J/c 8 (behind upper left side of dash, near instrument cluster)
• J/c 9 (behind upper left side of dash, near instrument cluster)
• L10 (w/o drl)
• L11 (w/o drl)
• N11 (w/ drl)
• N5 (w/ drl)
• Vehicle speed sensor (combination meter) (on transmission)

Courtesy Lamps Wiring Diagram for Toyota Tundra 2003

List of elements for Courtesy Lamps Wiring Diagram for Toyota Tundra 2003:

• Access cab
• B4 (in body harness, at left "a"pillar)
• B8 (in body harness, in left rear door)
• B9 (in body harness, in right rear door)
• Bj (at base of left rear door)
• Bk (at base of right rear door)
• C11
• C12
• Combination meter
• Diode (door courtesy) (behind upper left side of dash, near instrument cluster)
• Diode (power window) (behind upper center of dash)
• Diode (step light) (behind upper left end of dash, near base of windshield)
• Diode (tvip) (behind upper left side of dash, near instrument cluster)
• Dome fuse 10a
• Door
• Door ind
• Driver's side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compt)
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• Ignition key cylinder light
• Interior light
• J/c 21 (behind upper left side of dash, near instrument cluster)
• J/c 23 & 24 (behind left end of dash)
• J/c 3 (behind left kick panel)
• J/c 4 (behind left kick panel)
• J/c 5 (behind upper left side of dash, near instrument cluster)
• J/c 9 (behind upper left side of dash, near instrument cluster)
• J23
• J24
• Left door courtesy light
• Left front door courtesy switch
• Left rear lower door courtesy switch
• Left rear upper door courtesy switch
• Left vanity light
• Off
• Personal light
• Red
• Right door courtesy light
• Right front door courtesy switch
• Right rear lower door courtesy switch
• Right rear upper door courtesy switch
• Right vanity light
• Standard cab
• Step light
• W/ remote keyless entry
• W/o remote keyless entry

Instrument Illumination Wiring Diagram for Toyota Tundra 2003

List of elements for Instrument Illumination Wiring Diagram for Toyota Tundra 2003:

• Ashtray illumination
• C12
• Cigarette lighter illumination
• Diode (idle up) (4.7l) (behind upper right side of dash, near passenger air bag)
• Driver's side j/b (behind lower left side of dash)
• Ec (4.7l) (on left side of firewall) ed (3.4l) (on left side of engine)
• Els
• Engine room r/b (on left side of engine compt)
• Engine control module (behind right side of dash near "a" pillar)
• Glove box light
• Gnd
• Head
• Hot at all times
• I2 (in dash harness, behind upper left center of dash)
• I24
• I25
• Ie (behind left kick panel)
• Il-1
• Ill+
• Ill-
• Integration control & panel
• Integration relay
• J/b fuse 50a
• J/c 10 (behind upper left side of dash, near instrument cluster)
• J/c 12 (behind upper right side of dash, near passenger's air bag)
• J/c 13 (behind right kick panel)
• J/c 21 & 22 (behind upper left side of dash, near instrument cluster) a
• J/c 23 & 24 (behind left end of dash)
• J/c 3 (behind left kick panel)
• J/c 5 (behind upper left side of dash, near instrument cluster)
• J21
• J22
• J23
• J24
• Light control switch (combination switch)
• Meter illumination (combination meter)
• Mirror heater switch
• N4 (w/ drl)
• Off
• Radio & player
• Rheostat
• Steering switch (combination) switch
• Tail
• Tail fuse 15a

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Toyota Tundra 2003

List of elements for Power Distribution Wiring Diagram (1 of 2) for Toyota Tundra 2003:

• (on left front fender)
• Abs2 fuse 40a
• Abs3 fuse 30a
• Alt fuse 140a 100a
• Alt-s fuse 7.5a
• Am1 fuse 40a
• Am2 fuse 30a
• Anti-lock brakes system
• Battery
• Canada
• Cruise control engine control systems
• Daytime running lights system
• Defogger system
• Dimmer relay
• Dome fuse 10a
• Drl no.4 relay
• Ecu-b fuse 5a
• Efi no.1 fuse 15a
• Engine control system (3.4l) power door lock system
• Engine room r/b (left side of engine compartment)
• Etcs fuse 10a (v8) 15a (v6)
• Except towing package
• Exterior lights system (fog lights)
• Exterior lights system (trailer tow)
• Exterior lights trailer system
• Exterior lights trailer tow systems
• Fog fuse 20a
• From acc fuse (diagram 2 of 2)
• From alt a fuse diagram 1 of 2
• H-lp relay
• Haz fuse 20a
• Head lh fuse 10a
• Head ll fuse 10a
• Head rh fuse 10a
• Head rl fuse 10a
• Headlights system
• Headlights system (drl)
• Headlights system w/ drl
• Htr fuse 50a
• I2 (dash harness, behind upper left side of dash)
• J/b fuse 50a
• J/c 18 (left side of engine compt, under engine room r/b)
• J/c 3 (behind left kick panel)
• Mir htr fuse 30a
• Power outlet
• Power outlet relay
• Pwr outlet1 fuse 15a
• Pwr outlet2 fuse 20a
• Radio fuse 20a
• Red
• Short pin
• Sound system
• St3 fuse 30a
• Starting circuit
• Starting/charging system
• Sub batt fuse 30a
• To efi relay (diagram 2 of 2)
• To heater relay (diagram 2 of 2)
• To ignition switch (diagram 2 of 2)
• To ignition switch (diagram 2 of 2)
• To power fuse 30 (diagram 2 of 2)
• To tow tail fuse diagram 1 of 2
• Tow brk fuse 30a
• Tow tail fuse 30a
• Towing fuse 30a
• Towing package
• Usa

Power Distribution Wiring Diagram (2 of 2) for Toyota Tundra 2003

List of elements for Power Distribution Wiring Diagram (2 of 2) for Toyota Tundra 2003:

• 4wd fuse 20a
• A/c fuse 10a
• Acc
• Acc fuse 15a
• Acc relay (v8)
• Air conditioning system
• Anti-lock brakes, headlights, exterior lights, power windows, power door locks systems
• Anti-lock, cruise control, transmission, exterior lights, engine controls systems
• Cargo lp fuse 5a
• Cigarette lighter
• Drivers side j/b (behind lower left side of dash)
• Ecu ig fuse 5a
• Efi no.2 fuse 10a
• Efi relay
• Engine control
• Engine controls system
• Engine controls system (v8)
• Engine room r/b (left side of engine compartment)
• Exterior lights system
• Exterior lights, instrument cluster, cruise control,sound system, power mirrors, transmission, srs systems
• F10
• F11
• From efi no.1 fuse (diagram 1 0f 2)
• From engine room r/b, am1 fuse (diagram 1 of 2)
• From engine room r/b, am2 fuse (diagram 1 of 2)
• From htr fuse (diagram 1 of 2)
• From j/b fuse diagram 1 of 2
• G10
• G11
• G12
• G13
• Gauge fuse 10a
• Heater relay
• Horn fuse 10a
• I2 (dash harn, upper left side of dash)
• Ign fuse 5a
• Ignition switch
• Inte- gration relay
• Integration relay
• J/c 1 (left side of engine compt, under engine room r/b)
• J/c 2 (left side of engine compt, under engine room r/b)
• J/c 3 (left kick panel)
• Lock
• Not used
• Obd fuse 7.5a
• Power door lock system
• Power fuse 30a
• Power relay
• Power windows system
• Red
• St relay (v6)
• Sta fuse 5a
• Start
• Starting/ charging system
• Starting/charging, instrument cluster, cruise control, transmission, srs, engine control systems
• Starting/charging, interior lights, defogger, warning exterior lights, wiper/washer, transmission, body computer systems
• Stop fuse 15a
• Systems
• Tail fuse
• To power outlet relay (diagram 1 of 2)
• Transmission system
• Transmission, starting/charging, engine control systems
• Turn fuse 5a
• Wip fuse 20a
• Wiper/washer system

POWER DOOR LOCKS

Power Door Locks Wiring Diagram, with DRL, without Keyless Entry for Toyota Tundra 2003

List of elements for Power Door Locks Wiring Diagram, with DRL, without Keyless Entry for Toyota Tundra 2003:

• (behind upper left side of dash, near instrument cluster)
• (behind upper left side of dash, near instrument cluster) connector 8 junction
• (in body harness, in left front door) b3
• Act+
• Act-
• C11
• C12
• C13
• Combination meter
• Dome fuse 10a
• Driver side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compartment)
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• Ih (behind right kick panel)
• Integration relay
• Interior lights syatem
• J21
• J22
• J23
• J24
• Junction connector 13 (behind right kick panel)
• Junction connector 21 & 22
• Junction connector 23 & 24 (behind left end of dash)
• Junction connector 3 (behind left kick panel)
• Junction connector 4 (behind left kick panel)
• Junction connector 7 (behind upper left side of dash, near instrument cluster)
• Junction connector 8 (behind upper left side of dash, near instrument cluster)
• Left door key lock & unlk unlock switch
• Left door lock control lock switch (power window master switch)
• Left door lock motor & door unlock detection switch
• Lock
• N10
• N19
• N20
• N21
• N22
• N23
• N24
• Power fuse 30a
• Right door key lock & lock unlock switch
• Right door lock control unlk switch
• Right door lock motor & door unlock detection switch
• T13
• Tvip ecu (behind center of dash)
• Unlk
• Unlock warning switch

Power Door Locks Wiring Diagram, without DRL without Keyless Entry for Toyota Tundra 2003

List of elements for Power Door Locks Wiring Diagram, without DRL without Keyless Entry for Toyota Tundra 2003:

• (behind upper left side of dash, near instrument cluster)
• (in body harness, in left front door) b3
• (near instrument cluster) (lock) diode
• Act+
• Act-
• B7 (in body harness, in right front door)
• C11
• C12
• C13
• Combination meter
• Diode (unlock) (near instrument cluster)
• Dome fuse 10a
• Driver side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compartment)
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• Ih (behind panel) kick panel)
• Integration relay
• Interior lights system
• J21
• J22
• J23
• J24
• Junction connector 13 (behind right kick panel)
• Junction connector 21 & 22
• Junction connector 23 & 24 (behind left end of dash)
• Junction connector 3 (behind left kick panel)
• Junction connector 4 (behind left kick panel)
• Junction connector 7 (behind upper left side of dash, near instrument cluster)
• Junction connector 8
• L16
• Left door key lock & unlk unlock switch
• Left door lock control lock switch (power window master switch)
• Left door lock motor & door unlock detection switch
• Lock
• Power fuse 30a
• Right door key lock & lock unlock switch
• Right door lock control unlk switch
• Right door lock motor & door unlock detection switch
• T13
• Tvip ecu (behind center of dash)
• Unlk
• Unlock warning switch

POWER MIRRORS

Power Mirrors Wiring Diagram for Toyota Tundra 2003

List of elements for Power Mirrors Wiring Diagram for Toyota Tundra 2003:

• A/t
• Acc fuse 15a
• Defogger system
• Down
• Driver's side j/b (behind lower left side of dash)
• G11
• Hot in acc or on
• Ie (behind left kick panel)
• J/c 23 & 24 (behind left end of dash)
• J/c 9 (behind upper left side of dash, near instrument cluster)
• J23
• J24
• Left
• Left remote control mirror
• M/t
• Operation switch
• Red
• Remote control mirror switch
• Right
• Right remote control mirror
• Select switch
• W/ mirror heater
• W/o mirror heater

POWER SEATS

Power Seats Wiring Diagram for Toyota Tundra 2003

List of elements for Power Seats Wiring Diagram for Toyota Tundra 2003:

• (behind left end of dash) junction connector 23
• (behind left kick panel) ie
• Down
• Driver's lumbar support control motor
• Driver's lumbar support control switch
• Driver's power seat control switch
• Driver's side j/b (behind lower left side of dash)
• Front
• Front vertical
• Hot at all times
• Ie (behind left kick panel)
• Junction connector (under driver's seat)
• Junction connector 16 (under driver's seat)
• Power fuse 30a
• Power seat motor (driver's seat front vertical control)
• Power seat motor (driver's seat rear vertical control)
• Power seat motor (driver's seat reclining control)
• Power seat motor (driver's seat slide control)
• Rear
• Rear vertical
• Reclining
• Red
• Short pin (behind left kick panel)
• Slide

POWER WINDOWS

Power Windows Wiring Diagram for Toyota Tundra 2003

List of elements for Power Windows Wiring Diagram for Toyota Tundra 2003:

• 3.4l m/t w/o drl
• 4.7l m/t w/o drl
• Cls
• Driver's side j/b (behind lower left side of dash)
• Hot at all times
• Ie (behind left kick panel)
• Integration relay
• J21
• J22
• Junction connector (behind left kick panel)
• Junction connector 21 & 22 (near instrument cluster)
• Junction connector 23 & 24 (behind left end of dash)
• Left front power window motor
• Opn
• Power fuse 30a
• Power relay
• Power window master switch
• Power window motor (back window)
• Power window switch (back window)
• Right front power window motor
• Right power window control switch
• Window lock switch

RADIO

Radio Wiring Diagram for Toyota Tundra 2003

List of elements for Radio Wiring Diagram for Toyota Tundra 2003:

• (in body harness, in left front door) b1
• (in body harness, in right front door) b5
• Acc
• Acc fuse 15a
• Acc1
• Au1
• Au2
• Driver side j/b (behind lower left side of dash)
• Eau
• Engine room r/b (on left side of engine compartment)
• Fl+
• Fl-
• Fr+
• Fr-
• G10
• Hot at all times
• Hot in on or acc
• I25
• Ig (below center of dash)
• Ill
• Integration control & panel
• Interior lights system
• Left front door speaker
• Left rear door speaker
• Left tweeter
• Pnk
• R11
• Radio & player
• Radio fuse 20a
• Red
• Right front door speaker
• Right rear door speaker
• Right tweeter
• Rl+
• Rl-
• Rr+
• Rr-
• Steering pad switch (combination switch)
• Sw1
• Sw2
• Swg
• W/ access cab

STARTING/CHARGING

Charging Wiring Diagram for Toyota Tundra 2003

List of elements for Charging Wiring Diagram for Toyota Tundra 2003:

• 100a
• Alt fuse 140a
• Alt-s fuse 7.5a
• Battery
• Battery ground
• C12
• Charge warning light
• Combination meter
• Driver's side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compt)
• Except towing
• F10
• Gauge fuse 10a
• Generator
• Hot in on or start
• Hot in start
• Ign fuse 5a
• Junction connector 1 (on left side of engine compt, under engine room r/b)
• Junction connector 11 (behind upper right side of dash, near passenger's air bag)
• Nca
• Towing
• W/ drl
• W/o drl

3.4L

3.4L, Starting Wiring Diagram for Toyota Tundra 2003

List of elements for 3.4L, Starting Wiring Diagram for Toyota Tundra 2003:

• (behind center of dash)
• (behind upper left side of dash, near instrument cluster) junction connector 8
• A j23
• A j24
• A/t
• Acc
• Am2 fuse 30a
• Battery
• Battery ground
• Clutch start cancel switch (m/t) (above break pedal)
• Clutch start switch (m/t) (above clutch pedal)
• Driver's side j/b (behind lower left side of dash)
• Engine control module (behind right side of dash, near ``a" pillar)
• Engine room r/b (on left side of engine compt)
• Entry
• Entry)
• Gauge fuse 10a
• Hot in on or start
• I1 (in dash harness, behind upper left end of dash)
• Ie (behind left kick panel)
• Ignition switch
• Junction connector 2 (on left side of engine compt, under engine room r/b)
• Junction connector 23 & 24 (behind left end of dash)
• Nca
• Nsw
• Off
• P/n
• Park/ neutral position switch (a/t) (on transmission)
• Pnk
• Pnk a
• Solid state
• Srly
• Sta
• Sta fuse 5a
• Start
• Starter
• Starter relay
• T13
• Tvip ecu (w/ keyless
• W/o keyless

4.7L

4.7L, Starting Wiring Diagram for Toyota Tundra 2003

List of elements for 4.7L, Starting Wiring Diagram for Toyota Tundra 2003:

• Acc
• Am2 fuse 30a
• Battery
• Battery ground
• Driver's side j/b (behind lower left side of dash)
• Ea (on left front fender)
• Engine control module (behind right side of dash, near "a" pillar)
• Engine room r/b (on left side of engine compt)
• I3 (in dash harness, behind right side of dash)
• Ignition switch
• Junction connector 18 (on left side of engine compt, under engine room r/b)
• Junction connector 2 (on left side of engine compt, under engine room r/b)
• Junction connector 20 (behind upper right side of dash)
• Keyless entry
• Lock
• Nca
• Nsw
• Park/ neutral position switch (on transmission)
• Pnk
• Srly
• St3 fuse 30a
• Sta
• Sta fuse 5a
• Star
• Start
• Starter
• Starter relay
• Stsw
• T13
• Tvip ecu (w/ keyless entry) (behind center of dash)
• W/o

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Toyota Tundra 2003

List of elements for Supplemental Restraints Wiring Diagram for Toyota Tundra 2003:

• (behind left kick panel) ie
• 6 cyl
• 8 cyl
• Acc
• Acc fuse 15a
• Air bag squib (front passenger air bag assembly)
• Air bag squib (steering wheel pad)
• Bench seat
• C12
• C13
• Center air bag sensor assembly (behind lower center of dash, on transmission tunnel)
• Combination meter
• Connection detection pin
• Data link connector (dlc) 3 (partial) (below left side of dash, near center console)
• Dome fuse 10a
• Driver side j/b (behind lower left side of dash)
• Ecu+
• Ecu-
• Engine control module (behind right side of dash, near "a" pillar)
• Engine room r/b (on left side of engine compartment)
• F/ps
• G10
• Gnd
• Gnd1
• Gsw2
• Hot at all times
• Hot in acc or on
• Hot in on or start
• I24
• I25
• Ie (left kick panel)
• Ig2
• Ign fuse 5a
• Ih (right kick panel)
• Ind
• Integration control & panel
• J/c 10 (behind upper left side of dash, near combination meter)
• J/c 13 (right kick panel)
• J/c 5 (behind upper left side of dash, near combination meter)
• J/c 8 (behind upper left side of dash, near combination meter)
• Lbe+
• Left buckle switch inside driver's seat belt buckle)
• Left front air bag sensor (on front left side of engine compartment)
• Left pretensioner (near bottom of left "b" pillar)
• Passenger air bag manual on-off switch
• Pind
• Pl+
• Pl-
• Pr+
• Pr-
• Rbe+
• Red
• Right front air bag sensor (on front right side of engine compartment)
• Right pretensioner (near bottom of right "b" pillar)
• Seat belt warning occupant detection sensor (under front passenger's seat)
• Sil
• Sl+
• Sl-
• Solid state
• Spiral cable
• Sqb+
• Sqb-
• Sr+
• Sr-
• Srs warning light
• W/o power seat
• W/power seat

TRANSMISSION

3.4L

3.4L, 4WD Wiring Diagram for Toyota Tundra 2003

List of elements for 3.4L, 4WD Wiring Diagram for Toyota Tundra 2003:

• (a/t)
• 4wd
• 4wd fuse 20a
• 4wd ind
• A/t
• A/t p ind
• Abs actuator with ecu (right rear of engine compt)
• Acc fuse 15a
• Add actuator (front of engine)
• C11
• C12
• C14
• Combination meter
• Detection switch (4wd position) (transfer case)
• Detection switch (l4 position) (transfer case)
• Detection switch (neutral position) (transfer case)
• Diode (a/t) (behind upper left side of dash)
• Driver side j/b (lower left side of dash)
• Engine control module (behind right side of dash)
• Ex13
• G11
• Gauge fuse 10a
• Hot in on or acc
• Hot in on or start
• J/c 10 (behind upper left side of dash)
• J/c 11 (behind upper right side of dash)
• J/c 12 (behind upper right side of dash)
• J/c 13 (right kick panel)
• J/c 8 (behind upper left side of dash)
• J/c 9 (behind upper left side of dash)
• M/t
• Neutral position switch (part of park/ neutral position switch)
• Red
• Tfn
• Transmission control relay (behind lower right side of dash)
• W/ door lock ctrl
• W/o door lock ctrl

3.4L, A/T Wiring Diagram for Toyota Tundra 2003

List of elements for 3.4L, A/T Wiring Diagram for Toyota Tundra 2003:

• (behind upper left side of dash)
• (behind upper left side of dash) diode
• (behind upper left side of dash) j/c 8
• (dash harn, behind right side of dash) i3
• (left side of engine compt)
• (on transaxle) park/neutral position switch
• A/t oil temp
• A/t oil temperature sensor (on trans- mission)
• Acc fuse 15a
• Batt
• C11
• C12
• C13
• C14
• Combination meter
• Driver side j/b (lower left side of dash)
• E01
• E02
• E03
• Ea (left front fender)
• Ed (left side of engine)
• Efi 1 fuse 20a
• Efi relay
• Electronically controlled transmission solenoids
• Engine control module (behind right side of dash, near "a" pillar)
• Engine coolant temperature sensor (front of engine)
• Engine room r/b (left side of engine compt)
• F11
• G11
• Gauge fuse 10a
• Hot at all times
• Hot in on or acc
• Hot in on or start
• Hot in start
• Ie (behind left kick panel)
• Ign fuse 5a
• Igsw
• Ih (behind right kick panel)
• J/c
• J/c 12 (behind upper right side of dash)
• J/c 18 (left side of engine compt)
• J/c 5 (behind upper left side of dash)
• J/c 8 (behind upper left side of dash)
• J/c 9 (behind upper left side of dash)
• Me01
• Mrel
• No. 1
• No. 2
• No. 3
• Nsw
• O/d main switch (center of dash)
• O/d off
• Odlp
• Odms
• Oil
• Oilw
• Pnk
• Red
• Slt
• Slt+
• Slt-
• Sp1
• Sp2+
• Sp2-
• Sta
• Sta fuse 5a
• Starting system
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Throttle position sensor (on throttle body assembly)
• Thw
• Vehicle speed sensor (on trans- mission)
• Vta
• Vta2

4.7L

4.7L, 4WD Wiring Diagram for Toyota Tundra 2003

List of elements for 4.7L, 4WD Wiring Diagram for Toyota Tundra 2003:

• (behind upper right side of dash)
• (dah harn, behind right side of dash) i3
• 2-4
• 4hi ind
• 4lo ind
• 4wd
• 4wd control ecu (right kick panel)
• 4wd fuse 20a
• Abs actuator with ecu (right rear of engine compt)
• Acc fuse 15a
• Add
• Add actuator (center rear of engine compt)
• C11
• C12
• C13
• C14
• Combination meter
• Detection switch (4wd position) (transfer case)
• Detection switch (l4 position) (transfer case)
• Diode (a/t) (behind upper left side of dash)
• Dl1
• Dl2
• Dm1
• Dm2
• Driver side j/b (lower left side of dash)
• Engine control module (behind right side of dash)
• Ex13
• G11
• Gauge fuse 10a
• Gnd
• H-l
• Hot in on or acc
• Hot in on or start
• I24
• Ind1
• Ind2
• Integration control & panel (behind center of dash)
• J/c 11 (behind upper right side of dash)
• J/c 12
• J/c 13 (right kick panel)
• J/c 8 (behind upper left side of dash)
• J/c 9 (behind upper left side of dash)
• Neutral position switch (part of park/ neutral position switch)
• Pnk
• Red
• Spd
• Speedo
• Tl1
• Tl2
• Tl3
• Tm1
• Tm2
• Transfer shift actuator (on transfer case)
• W/ door lock ctrl
• W/o door lock ctrl

4.7L, A/T Wiring Diagram for Toyota Tundra 2003

List of elements for 4.7L, A/T Wiring Diagram for Toyota Tundra 2003:

• (behind upper left side of dash)
• (behind upper left side of dash) diode
• (behind upper left side of dash) j/c 8
• (behind upper left side of dash) j/c 9
• (dash harn, upper right side of dash)
• (left front fender) ea
• (left side of engine compt)
• (left side of firewall) ec
• (on transaxle) park/neutral position switch
• (right rear of engine) eb
• +b2
• A/t oil temp
• A/t oil temperature sensor (on trans- mission)
• Acc fuse 15a
• Batt
• C11
• C12
• C13
• C14
• Combination meter
• Driver side j/b (lower left side of dash)
• E01
• E02
• E03
• Efi 1 fuse 20a
• Efi relay
• Electronically controlled transmission solenoids
• Engine control module (behind right side of dash, near "a" pillar)
• Engine coolant temperature sensor (right front of engine)
• Engine room r/b (left side of engine compt)
• F11
• G11
• Gauge fuse 10a
• Gw01
• Hot at all times
• Hot in on or acc
• Hot in on or start
• Hot in start
• Ie (behind left kick panel)
• Ign fuse 5a
• Igsw
• Ih (behind right kick panel)
• J/c
• J/c 11 (behind upper right side of dash)
• J/c 12 (behind upper right side of dash)
• J/c 18 (left side of engine compt)
• J/c 5 (behind upper left side of dash)
• J/c 8 (behind upper left side of dash)
• Me01
• Mrel
• Nc0-
• Nco+
• No. 1
• No. 2
• No. 3
• Nsw
• O/d direct clutch speed sensor (left side of trans- mission)
• O/d main switch (center of dash)
• O/d off
• Odlp
• Odms
• Oilw
• Pnk
• Red
• Slt
• Slt+
• Slt-
• Sp2+
• Sp2-
• Spd
• Sta
• Sta fuse 5a
• Star
• Starting system
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Stsw
• Thoc
• Throttle position sensor (on throttle body assembly)
• Thw
• Vehicle speed sensor (on trans- mission)
• Vta
• Vta2

WARNING SYSTEMS

Warning Systems Wiring Diagram for Toyota Tundra 2003

List of elements for Warning Systems Wiring Diagram for Toyota Tundra 2003:

• (behind left end of dash)
• (w/ pwr seat) (bench seat) (separate seat)
• C11
• C12
• C13
• Combination meter
• Diode (door courtesy) (behind upper left side of dash, near instrument cluster)
• Dome fuse 10a
• Door ind
• Driver side j/b (behind lower left side of dash)
• Engine room r/b (on left side of engine compt)
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• Ie (behind left kick panel)
• Ih (behind right kick panel)
• J/c 10 (behind upper left side of dash, near instrument cluster)
• J/c 23 & 24
• J/c 4 (behind left kick panel)
• J/c 7 (behind upper left side of dash, near instrument cluster)
• J/c 8 (behind upper left side of dash, near instrument cluster)
• J/c 9 (behind upper left side of dash, near instrument cluster)
• J23
• J24
• Left buckle switch (inside driver's seat belt buckle)
• Left front door courtesy switch
• Seat belt warning indicator
• Unlock warning switch
• W/ door lock control
• W/o door lock control

WIPER/WASHER

2-Speed Wiper/Washer Wiring Diagram for Toyota Tundra 2003

List of elements for 2-Speed Wiper/Washer Wiring Diagram for Toyota Tundra 2003:

• C11
• C17
• Combi- nation meter
• Combination switch
• Driver side j/b (behind lower left side of dash)
• Ea (on left front fender)
• Gauge fuse 10a
• High
• Hot in on or start
• J/c 13 (behind right kick panel)
• J/c 3 (behind left kick panel)
• Low
• Mist
• Off
• Wash
• Washer level sensor (washer motor) (in right front corner of engine compt, behind headlight)
• Washer level warning light
• Washer motor (on right side of engine compartment, behind headlight)
• Wip fuse 20a
• Wiper motor (in right rear corner of engine compt)
• Wiper/ washer switch

Interval Wiper/Washer Wiring Diagram for Toyota Tundra 2003

List of elements for Interval Wiper/Washer Wiring Diagram for Toyota Tundra 2003:

• C11
• C17
• Combi- nation meter
• Combination switch
• Driver side j/b (behind lower left side of dash)
• Ea (on left front fender)
• Gauge fuse 10a
• High
• Hot in on or start
• Int
• J/c 13 (behind right kick panel)
• J/c 3 (behind left kick panel)
• Low
• Off
• Solid state
• Wash
• Washer level sensor (washer motor) (in right front corner of engine compt, behind headlight)
• Washer level warning light
• Washer motor (on right side of engine compt, behind headlight)
• Wip fuse 20a
• Wiper motor (in right rear corner of engine compt)
• Wiper/ washer switch