ENGINE PERFORMANCE – Toyota Tacoma 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.7L

2.7L, Engine Performance Wiring Diagram (1 of 5) for Toyota Tacoma 2008

List of elements for 2.7L, Engine Performance Wiring Diagram (1 of 5) for Toyota Tacoma 2008:

• (on power steering pump) power steering oil pressure switch
• (on transmission) electronically controlled transmission solenoid
• (pins 5 thru 7: not used)
• (rear of cylinder head) eg
• (top of engine) fuel injectors
• 4wd
• A/c amplifier (right side of dash)
• A21
• Ac1
• Act
• Aidi
• Aip
• Air bag sensor assembly center (in center of dash)
• Canh
• Canl
• Ccs
• Computer data lines system
• Cruise control system
• E03
• E04
• E2g
• Efii
• Efio
• Els2
• Engine control module (behind right side of dash)
• F/ps
• Gsw2
• Imi
• Imo
• Mass air flow meter (part of air intake assembly, next to air cleaner box)
• Me01
• Nco+
• Nco-
• Out
• Prg
• Psw
• Red
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Spd
• Stp
• Tach
• Tha
• Tho1
• Thwo
• Transmission revolution sensor (turbine) (on left side of transmission assembly)
• Transmissions system
• Transponder key ecu (left side of dash)
• Vehicle speed sensor (electronically controlled transmission) (on transmission)
• Voltage inverter (left rear of vehicle compt)
• Vsv (purge) (on left side of engine compt)

2.7L, Engine Performance Wiring Diagram (2 of 5) for Toyota Tacoma 2008

List of elements for 2.7L, Engine Performance Wiring Diagram (2 of 5) for Toyota Tacoma 2008:

• 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
• Ig1 fuse 10a
• Instrument panel j/b 1 (at left side of dash)
• Instrument panel j/b 2 (right side of dash)
• J/c 1 (behind left side of dash)
• J/c 4 & 5 (right side of dash)
• Malfunction indicator lamp
• Nssd
• Park/ neutral position switch (on transmission)
• Pnk
• Shift lock control ecu (under center console)
• Tac

2.7L, Engine Performance Wiring Diagram (3 of 5) for Toyota Tacoma 2008

List of elements for 2.7L, Engine Performance Wiring Diagram (3 of 5) for Toyota Tacoma 2008:

• A/f heater fuse 15a
• A/f heater relay
• A/pmp fuse 50a
• A10
• A11
• A13
• A14
• A15
• A18
• A30
• A31
• A33
• Air injection control driver (right side of engine compt)
• Air pump (right front of engine compt)
• B10
• Batt
• Bd (on left rear frame rail)
• C/opn relay
• Ea (at right front fender)
• Eb (left front of engine compt)
• 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 (in fuel tank)
• Hot at all times

2.7L, Engine Performance Wiring Diagram (4 of 5) for Toyota Tacoma 2008

List of elements for 2.7L, Engine Performance Wiring Diagram (4 of 5) for Toyota Tacoma 2008:

• (on automatic transmission) a/t fluid temperature sensor
• (on left side of engine) knock control sensor (bank 1)
• A1a+
• A1a-
• Acc
• Aip
• Air fuel ratio sensor (bank 1 sensor 1) (on exhaust system, 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 (rear of engine)
• Engine room r/b (left front of engine compt)
• Etcs fuse 10a
• Gauge fuse 7.5a
• Ha1a
• Heated oxygen sensor (bank 1 sensor 2) (in exhaust manifold, after catalytic converter)
• Hot at all times
• Ht1b
• I15
• Ig2
• Ign fuse 15a
• Ignition switch
• Instrument panel j/b 1 (at left side of dash)
• J/c 12 (right side of dash)
• Lock
• Nca
• Off
• Ox1b
• Pnk
• Red
• Start
• Stop fuse 10a
• Stop lamp switch (on bracket, above brake pedal)
• Stop lp ctrl relay
• W/ vsc
• W/o vsc

2.7L, Engine Performance Wiring Diagram (5 of 5) for Toyota Tacoma 2008

List of elements for 2.7L, Engine Performance Wiring Diagram (5 of 5) for Toyota Tacoma 2008:

• (on top of cylinder head cover)
• (rear of cylinder head)
• (rear of cylinder head) eh
• +bm
• A12
• A17
• A18
• A1a+
• A1a-
• Accelerator position sensor (behind left side of dash)
• Airp
• Airv
• Alt
• Batt
• Camshaft position sensor (on left side of engine)
• Camshaft timing oil control valve (front of engine)
• Canister pressure sensor
• Canister pump module (under center of vehicle bed)
• Crankshaft position sensor (on left side of engine)
• E01
• E02
• Eh (rear of cylinder head)
• Eknk
• Els
• Engine control module (behind right side of dash)
• Eom
• Epa
• Epa2
• Exterior lights system
• Ge01
• Generator
• Gnd
• Ha1a
• Ht1b
• 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 (behind right kick panel)
• Knk1
• Leak detection pump
• Mpmp
• Mrel
• Nca
• Ne+
• Ne-
• Noise filter (ignition) (on right side of engine compt)
• Nsw
• Oc1+
• Oc1-
• Ox1b
• Pnk
• Ppmp
• Red
• St1-
• Sta
• Starting/ charging system
• Thoc
• Throttle body assembly (left top of engine)
• Thw
• Vcp2
• Vcpa
• Vent valve
• Vpa
• Vpa2
• Vpmp
• Vta1
• Vta2

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 6) for Toyota Tacoma 2008:

• (2wd a/t)
• (4wd)
• (a/t 4wd)
• (left front of engine) vvt sensor (left)
• (on lower front of engine) crankshaft position sensor
• (on power steering 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 of engine) fuel injectors
• (top right front of engine) vvt sensor (right)
• 4wd
• A/c amplifier (right side of dash)
• A21
• Ac1
• Act
• Air bag sensor assembly center (in center of dash)
• Canh
• Canl
• Computer data lines system
• Efii
• Efio
• Els
• Els2
• Engine control module (behind right side of dash)
• Eom
• Exterior lights system
• F/ps
• Fpr
• Gsw2
• Ic (center of dash)
• Imi
• Imo
• J/c 13 (behind right kick panel)
• J/c 5 (right side of dash)
• Nca
• Ne+
• Ne-
• Oc1+
• Oc1-
• Oc2+
• Oc2-
• Oilw
• Out
• Pnk
• Psw
• Red
• Sel
• Spd
• Sta
• Starting/charging system
• Tach
• Thwo
• Transmissions system
• Transponder key ecu (left side of dash)
• Voltage inverter (left rear of vehicle compt)
• Vv1+
• Vv1-
• Vv2+
• Vv2-
• Wl+
• Wl-
• Wr+
• Wr-

4.0L, Engine Performance Wiring Diagram (2 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 6) for Toyota Tacoma 2008:

• 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
• Ig1 fuse 10a
• Instrument panel j/b 2 (right side of dash)
• J/c 1 (behind left side of dash)
• J/c 4 & 5 (right side of dash)
• Malfunction indicator lamp
• Nssd
• Nssl
• Park/ neutral position switch (on trans- mission)
• Pnk
• Shift lock control ecu (under center console)

4.0L, Engine Performance Wiring Diagram (3 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 6) for Toyota Tacoma 2008:

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

4.0L, Engine Performance Wiring Diagram (4 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (4 of 6) for Toyota Tacoma 2008:

• (on left rear frame rail) bd
• 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 (behind left front headlamp)
• Fuel suction pump & gauge assembly (in fuel tank)
• Hot at all times

4.0L, Engine Performance Wiring Diagram (5 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (5 of 6) for Toyota Tacoma 2008:

• 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 (top center 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) (on exhaust system, rear of engine)
• Heated oxygen sensor (bank 2 sensor 2) (at rear of engine, in left bank of exhaust)
• Hot at all times
• Ht1b
• Ht2b
• I15
• Ig2
• Ign fuse 15a
• Ignition switch
• Instrument panel j/b 1 (at left side of dash)
• Lock
• Nca
• Off
• Ox1b
• Ox2b
• Start
• Stop fuse 10a
• Stop lamp switch (on bracket, above brake pedal)
• Stop lp ctrl relay
• Tac
• W/ vsc
• W/o vsc

4.0L, Engine Performance Wiring Diagram (6 of 6) for Toyota Tacoma 2008

List of elements for 4.0L, Engine Performance Wiring Diagram (6 of 6) for Toyota Tacoma 2008:

• (on top of cylinder head cover)
• (right rear of engine compt)
• (right rear of engine compt) ee
• +b2
• +bm
• A18
• Accelerator position sensor (behind left side of dash)
• Acis
• Batt
• Canister pressure sensor
• Canister pump module (under center of vehicle bed)
• E01
• E02
• E2g
• Ed (right rear of engine compt)
• Ee (right rear of engine compt)
• Engine control module (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
• Mass air flow meter (part of air intake assembly, next to air cleaner box)
• Mpmp
• Mrel
• Nca
• Noise filter (ignition) (rear of engine)
• Ox1b
• Pnk
• Ppmp
• Prg
• Red
• Stp
• Tha
• Throttle body assembly (front top of engine)
• Thw
• Vcp2
• Vcpa
• Vent valve
• Vpa
• Vpa2
• Vpmp
• Vsv (acis) (rear top center of engine)
• Vsv (purge) (on left side of engine compt)
• Vta1
• Vta2