ENGINE PERFORMANCE – Toyota Tacoma PreRunner 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.7L

2.7L, Engine Performance Wiring Diagram (1 of 5) for Toyota Tacoma PreRunner 2005

List of elements for 2.7L, Engine Performance Wiring Diagram (1 of 5) for Toyota Tacoma PreRunner 2005:

• (4wd)
• (a/t)
• (on pump) power steering oil pressure switch
• (pins 5 thru 7: not used)
• (rear of cylinder head) eg
• 4wd
• A/c amplifier
• Ac1
• Act
• Aidi
• Aip
• Airbag sensor assembly center (in center of dash)
• Canh
• Canl
• Computer data lines system
• E03
• E04
• E2g
• Electronically controlled transmission solenoid
• Els
• Els2
• Engine control module (ecm) (behind right side of dash)
• Exterior lights system
• F/ps
• Fuel injectors
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Mass air flow meter (part of air intake assy)
• Me01
• Nco+
• Nco-
• Ot2
• Prg
• Psw
• Red
• Slt
• Slt+
• Slt-
• Slu
• Slu+
• Slu-
• Sp2+
• Sp2-
• Spd
• Stp
• Tach
• Tha
• Tho1
• Thwo
• Transmission revolution sensor (turbine) (left side of transmission)
• Transmission system (4wd circuit)
• Vehicle speed sensor (on trans)
• Voltage inverter (left rear of vehicle compt)
• Vsv (evap) (left side of engine compt)

2.7L, Engine Performance Wiring Diagram (2 of 5) for Toyota Tacoma PreRunner 2005

List of elements for 2.7L, Engine Performance Wiring Diagram (2 of 5) for Toyota Tacoma PreRunner 2005:

• At3
• Atd
• C10
• C12
• C13
• C14
• C15
• C16
• C17
• Combination meter
• Data link connector 3 (below left center of dash)
• Driver side j/b (left side of dash)
• E11
• E15
• H13
• Hot in run or start
• Ia (left side of dash)
• Ig1 fuse 10a
• Instrument panel j/b 1 (left side of dash)
• Instrument panel j/b 2 (right side of dash)
• J/c 1 (behind upper left side of dash)
• J/c 4 & j/c 5 (right side of dash)
• Malfunction indicator lamp
• Nssd
• Park/ neutral position switch (on trans)
• Pnk
• Shift lock control ecu (under center console)

2.7L, Engine Performance Wiring Diagram (3 of 5) for Toyota Tacoma PreRunner 2005

List of elements for 2.7L, Engine Performance Wiring Diagram (3 of 5) for Toyota Tacoma PreRunner 2005:

• (access cab: on left rear "b" pillar) (double cab: at left rear of vehicle) (regular cab: on left rear frame rail)
• A/f heater fuse 15a
• A/f heater relay
• A10
• A11
• A13
• A14
• A15
• A18
• A30
• A31
• A33
• Air injection control driver (right side of engine compt)
• Air pmp fuse 50a
• Air pump (right front of engine compt)
• B10
• Batt
• C/opn relay
• Ea (at right front fender)
• Eb (near battery)
• Efi 2 fuse 10a
• Efi fuse 20a
• Efi relay
• Eip
• Eiv
• Engine room j/b (left side of engine compt)
• Engine room r/b (left front of engine compt)
• Fuel suction pump & gauge assembly
• Hot at all times

2.7L, Engine Performance Wiring Diagram (4 of 5) for Toyota Tacoma PreRunner 2005

List of elements for 2.7L, Engine Performance Wiring Diagram (4 of 5) for Toyota Tacoma PreRunner 2005:

• (dash harn, right side of dash)
• (on trans) a/t fluid temperature sensor
• (top front of engine) knock control sensor (bank 1)
• Acc
• Air fuel ratio sensor (bank 1, sensor 1) (on exhaust, rear of engine)
• Air pressure sensor (right rear of engine)
• Air switching valve (right side of engine compt)
• Am2
• B10
• B11
• C13
• Driver side j/b (left side of dash)
• Eh (rear of cylinder head)
• Engine coolant temperature sensor (top center of engine)
• Engine room r/b (left front of engine compt)
• Etcs fuse 10a
• Gauge fuse 7.5a
• Heated oxygen sensor (bank 1, sensor 2) (rear of engine, on exhaust system)
• Hot at all times
• I15
• I5 (dash harn, right side of dash)
• Ig2
• Ign fuse 15a
• Ignition switch
• Instrument panel j/b 1 (left side of dash)
• J/c 12 (right side of dash)
• Lock
• Off
• Pnk
• Red
• Start
• Stop fuse 10a
• Stop lp ctrl relay
• Stoplamp switch (on bracket, above brake pedal)
• W/ vsc
• W/o vsc

2.7L, Engine Performance Wiring Diagram (5 of 5) for Toyota Tacoma PreRunner 2005

List of elements for 2.7L, Engine Performance Wiring Diagram (5 of 5) for Toyota Tacoma PreRunner 2005:

• (dash harn, right side of dash)
• (rear of cylinder head)
• (rear of cylinder head) eh
• +bm
• A12
• A17
• A18
• A1a+
• A1a-
• Acceleration position sensor (behind left side of dash)
• Airp
• Airv
• Alt
• Batt
• Camshaft position sensor (on left side of engine)
• Camshaft timing oil control valve (on left side of engine)
• Canister closed valve
• Crankshaft position sensor (on left
• E01
• E02
• E10
• Eh (rear of cylinder head)
• Ekn1
• Els
• Engine control module (ecm) (behind right side of dash)
• Epa
• Epa2
• Exterior lights system
• Ge01
• Generator
• Gnd
• Ha1a
• Ht1b
• Ie (right end of dash)
• Igf
• Igf1
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Igsw
• Igt1
• Igt2
• Igt3
• Igt4
• Instrument panel j/b 2 (right side of dash)
• J/c 12 (right side of dash)
• J/c 13 (right side of dash)
• J/c 14 (right side of dash)
• Knk1
• Leak detection pump assembly (under right side of vehicle bed)
• Mpmp
• Mrel
• Nca
• Ne+
• Ne-
• Noise filter (rear of engine)
• Nsw
• Oc1+
• Oc1-
• Ox1b
• Pnk
• Pressure sensor
• Prmp
• Pump
• Red
• Side of engine)
• Sta
• Starting system
• Starting system (a/t)
• Thoc
• Throttle body assembly
• Thw
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Vpmp
• Vta1
• Vta2

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 6) for Toyota Tacoma PreRunner 2005:

• (2wd a/t)
• (4wd)
• (a/t 4wd)
• (a/t)
• (left front of engine) vvt sensor (left)
• (lower front of engine) crankshaft position sensor
• (on pump) power steering oil pressure switch
• (pins 2 thru 7: not used)
• (right rear of engine compt) ee
• (top center of engine) camshaft timing oil control valve (lh)
• (top center of engine) camshaft timing oil control valve (rh)
• (top right front of engine) vvt sensor (right)
• 4wd
• A/c amplifier
• Ac1
• Act
• Airbag sensor assembly center (in center of dash)
• Canh
• Canl
• Computer data lines system
• Els
• Els2
• Engine control module (ecm) (behind right side of dash)
• Eom
• Exterior lights system
• F/ps
• Fpr
• Fuel injectors
• Ic (center of dash)
• Ie (right end of dash)
• Imi
• Imo
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• J/c 13 (right side of dash)
• J/c 14 (right side of dash)
• J/c 5 (right side of dash)
• Ne+
• Ne-
• Oc1+
• Oc1-
• Oc2+
• Oc2-
• Oilw
• Pnk
• Psw
• Red
• Sel
• Spd
• Sta
• Starting system
• Tach
• Thwo
• Transmission system (4wd circuit)
• Transponder key ecu left side of dash)
• Voltage inverter (left rear of vehicle compt)
• Vv1+
• Vv1-
• Vv2+
• Vv2-

4.0L, Engine Performance Wiring Diagram (2 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 6) for Toyota Tacoma PreRunner 2005:

• A/t oil temp
• At2
• At4
• Atd
• Atl
• C10
• C12
• C13
• C14
• C15
• C16
• C17
• Combination meter
• Driver side j/b (left side of dash)
• E12
• E14
• E15
• H13
• Hot in run or start
• Ia (left side of dash)
• Ig1 fuse 10a
• Instrument panel j/b 2 (right side of dash)
• J/c 1 (behind upper left side of dash)
• J/c 4 & j/c 5 (right side of dash)
• Malfunction indicator lamp
• Nssd
• Nssl
• Park/ neutral position switch (on trans)
• Pnk
• Shift lock control ecu (under center console)

4.0L, Engine Performance Wiring Diagram (3 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 6) for Toyota Tacoma PreRunner 2005:

• (a/t)
• (right rear of engine compt)
• (right side of dash) j/c 12
• (top front of engine) knock control sensor (bank 1)
• (top front of engine) knock control sensor (bank 2)
• A1a+
• A1a-
• A2a+
• A2a-
• Air fuel ratio sensor (bank 1, sensor 1) (on exhaust, rear of engine)
• Air fuel ratio sensor (bank 2, sensor 1) (right rear of engine)
• E03
• E04
• E05
• Ee (right rear of engine compt)
• Ekn1
• Ekn2
• Electronically controlled transmission solenoid
• Engine control module (ecm) (behind right side of dash)
• Ha1a
• Ha2a
• Ht2b
• Knk1
• Knk2
• Me01
• Nsw
• Nt+
• Nt-
• Ot1
• Ot2
• Ox2b
• Pnk
• Red
• Sl1
• Sl1+
• Sl1-
• Sl2
• Sl2+
• Sl2-
• Slt
• Slt+
• Slt-
• Slu
• Slu+
• Slu-
• Sp2+
• Sp2-
• System starting
• Tho1
• Tho2
• Transmission revolution sensor (transmission) (right rear of transmission)
• Transmission revolution sensor (turbine) (left side of transmission)

4.0L, Engine Performance Wiring Diagram (4 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (4 of 6) for Toyota Tacoma PreRunner 2005:

• (access cab: on left rear "b" pillar) (double cab: at left rear of vehicle) (regular cab: on left rear frame rail)
• A/f heater fuse 15a
• A/f heater relay
• A10
• A11
• A30
• A31
• A33
• C/opn relay
• Ea (at right front fender)
• Eb (near battery)
• Efi 2 fuse 10a
• Efi fuse 20a
• Efi relay
• Engine room j/b (left side of engine compt)
• Engine room r/b (left front of engine compt)
• Fuel pump relay
• Fuel pump resistor (left front of engine compt)
• Fuel suction pump & gauge assembly
• Hot at all times

4.0L, Engine Performance Wiring Diagram (5 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (5 of 6) for Toyota Tacoma PreRunner 2005:

• A14
• A15
• A18
• Acc
• Am2
• B10
• B11
• C13
• Data link connector 3 (below left center of dash)
• Driver side j/b (left side of dash)
• Engine coolant temperature sensor (at right rear of engine)
• Engine room j/b (left side of engine compt)
• Engine room r/b (left front of engine compt)
• Etcs fuse 10a
• Gauge fuse 7.5a
• Heated oxygen sensor (bank 1, sensor 2) (rear of engine, on exhaust system)
• Heated oxygen sensor (bank 2, sensor 2) (rear of engine, in left exhaust bank)
• Hot at all times
• I15
• I5 (dash harn, right side of dash)
• I8 (dash harn, right side of dash)
• Ig2
• Ign fuse 15a
• Ignition switch
• Instrument panel j/b 1 (left side of dash)
• Lock
• Off
• Start
• Stop fuse 10a
• Stop lp ctrl relay
• Stoplamp switch (on bracket, above brake pedal)
• W/ vsc
• W/o vsc

4.0L, Engine Performance Wiring Diagram (6 of 6) for Toyota Tacoma PreRunner 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (6 of 6) for Toyota Tacoma PreRunner 2005:

• (dash harn, right side of dash)
• (right rear of engine compt)
• (right rear of engine compt) ee
• +b2
• +bm
• A18
• Acceleration position sensor (behind left side of dash)
• Acis
• Batt
• Canister closed valve
• E01
• E02
• E10
• E2g
• Ed (right rear of engine compt)
• Ee (right rear of engine compt)
• Engine control module (ecm) (behind right side of dash)
• Epa
• Epa2
• Ge01
• Gnd
• Ht1b
• Igf
• Igf1
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Igsw
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• Instrument panel j/b 2 (right side of dash)
• J/c 12 (right side of dash)
• Leak detection pump assembly (under right side of vehicle bed)
• Mass air flow meter (part of air intake assy)
• Mpmp
• Mrel
• Nca
• Noise filter (rear of engine)
• Ox1b
• Pnk
• Pressure sensor
• Prg
• Prmp
• Pump
• Red
• Stp
• Tha
• Throttle body assembly
• Thw
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Vpmp
• Vsv (acis) (rear top center of engine)
• Vsv (evap) (left side of engine compt)
• Vta1
• Vta2