ENGINE PERFORMANCE – GMC Sierra 1500 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.3L VIN H

4.3L VIN H, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014:

• (above accelerator pedal) accelerator pedal position (app) sensor
• (left side of engine compt) underhood fuse block
• (near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
• (or 6109)
• (or 6110)
• (or 6111)
• 5 volt reference
• 5 volt reference (1)
• 5 volt reference (2)
• 5v reference
• A/c compressor clutch rly ctrl
• A/c refrigerant pressure sens sig
• A/t
• Accessory wakeup serial data
• Air conditioning system
• Ambient air temperature sens sig
• App sens 1 sig
• App sens 2 sig
• Battery positive voltage
• Check engine indicator cntrl
• Computer data lines system
• Cooling fans system
• Cruise/etc/tcc brake signal
• Data out signal
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Evap canister vent sol ctrl
• Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle)
• Exterior lights system
• Four wheel drive low signal
• Four wheel drive wheel lock ind
• Fuel level sens sig
• Fuel level sensor
• Fuel line pressure sens 5v ref
• Fuel line pressure sensor low ref
• Fuel line pressure sensor signal
• Fuel pump
• Fuel pump & level sensor assembly (inside fuel tank)
• Fuel tank pressure (ftp) sensor (on fuel pump & sender assembly)
• Fuel tank pressure sensor signal
• Fuel temp/composition sig
• Gmlan serial data (+) (1)
• Gmlan serial data (+)(3)
• Gmlan serial data (-) (1)
• Gmlan serial data (-)(3)
• High spd cooling fan relay cntrl
• J375
• Low ref
• M/t
• Powertrain relay coil control
• Pressure sensor signal
• Relay fused sply (1)
• Relay fused sply (2)
• Run/crank ignition 1 voltage
• Sens low ref
• Starter enable relay control
• Starting/charging system
• Transmissions system
• X115
• X119
• X125

4.3L VIN H, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014:

• (behind brake pedal assembly) brake pedal position sensor
• (behind clutch pedal assembly) clutch position sensor
• (on lower left front of engine) g102
• A/t
• Active grille air shutter motor module 1 (left front corner of vehicle)
• Active grille air shutter motor module 2 (right front corner of vehicle)
• Aero shutter fuse 10a
• Batt
• Chassis control module
• Cntrl
• Cntrl 2
• Computer data lines system
• Data (+)
• Data (-)
• Driver information center (dic)
• Ecm ign fuse 15a
• Engine oil ind
• Fppm fuse 30a
• Fuel gauge ind
• G102 (on lower left front of engine)
• G121 (under vehicle at driver door on body mount frame post)
• G2 x1
• G2 x5
• Gnd
• Hot at all times
• Hot w/ ignition main relay energized
• Ign 1 volt
• Instrument cluster
• J105
• J388
• J396
• Lo spd gmlan
• Logic
• Low engine oil pressure ind
• M/t
• Malfunction ind lamp (mil)
• Ser data
• Underhood fuse block (left side of engine compt)
• X1 c1
• X119
• X132
• X225
• X5 h6
• X5 j5

4.3L VIN H, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014:

• (under vehicle at driver door on body mount frame post)
• A/c clutch fuse 10a
• A/c compressor clutch relay
• Ambient air temperature sensor (on left side of radiator support)
• Batt
• Computer data lines system
• Data (+)
• Data (-)
• Ecm fuse 30a
• Ecm ign fuse 15a
• Eng fuse 15a
• Engine controls ignition relay
• Engine coolant temperature sensor (left side of engine)
• Fuel composition sensor (between fuel tank & electronic brake control module)
• Fuel pressure sensor
• Fuel pump driver control module (mounted to bracket above spare tire)
• G121
• G121 (under vehicle at driver door on body mount frame post)
• Gnd
• Hot at all times
• Hot w/ ignition main relay energized
• Ign 1 volt
• Inj a odd fuse 20a
• Inj b even fuse 20a
• J163
• J355
• J356
• K4 x2
• Low ref
• Nca
• O2 snsr a fuse 15a
• O2 snsr b fuse 15a
• Out sig
• Ser data
• Shield
• Sply volt
• Tcm/ ecm fuse 15a
• Underhood fuse block (left side of engine compt)
• X105
• X2 h3
• X5 h3

4.3L VIN H, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014:

• (left rear corner of engine)
• (upper left side of engine)
• (upper right side of engine)
• 5-volt reference 1
• 60x sensor volt
• Actuator hi ctrl
• Actuator low ref
• Camshaft position actuator solenoid valve (front center of engine)
• Ckp sensor signal
• Cylinder 1
• Cylinder 2
• Cylinder 3
• Cylinder 4
• Cylinder 5
• Cylinder 6
• Ect sens sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (rear of engine)
• G130
• G140 (top right rear of engine)
• High pressure fuel pump (top rear of the engine)
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ign control (3)
• Ign control (4)
• Ign control (5)
• Ign control (6)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Intake sens 1
• Intake solenoid
• J161
• J162
• J166
• J167
• Low ref
• Nca
• Oil press sens sig
• Sensor 2 signal
• Spark plug
• Sply volt
• X154
• X161

4.3L VIN H, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014:

• (top left rear of engine) evaporative emission (evap) canister purge solenoid valve
• (top of left cylinder bank) fuel injector 1
• (top of left cylinder bank) fuel injector 3
• (top of left cylinder bank) fuel injector 5
• (top of right cylinder bank) fuel injector 2
• (top of right cylinder bank) fuel injector 4
• (top of right cylinder bank) fuel injector 6
• Camshaft position sensor (front of engine, above crank pulley)
• Cntrl 1
• Cntrl 2
• Crankshaft position sensor (right rear of engine)
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure control solenoid valve (front of the engine, behind front cover)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• G110 (left front lower side of engine block)
• Gnd
• J125
• Low ref
• Valve lifter oil manifold assembly (below intake manifold)
• X154
• X160
• X161
• X173

4.3L VIN H, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014

List of elements for 4.3L VIN H, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014:

• (near left side of engine) heated oxygen sensor (ho2s) bank 1 sensor 1
• (near left side of engine) heated oxygen sensor (ho2s) bank 1 sensor 2
• (near right side of engine) heated oxygen sensor (ho2s) bank 2 sensor 1
• (near right side of engine) heated oxygen sensor (ho2s) bank 2 sensor 2
• 5 volt ref
• 5-volt ref
• 5v return
• Air temp sens sig
• Charge ind cntrl
• Eng oil pres sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil level switch (left side of oil pan)
• Exterior lights system
• Frp sens sig
• Fuel rail pressure sensor (top left rear of engine)
• G110 (left front lower side of engine block)
• Generator sig
• Ho2s b1 s1 hi sig
• Ho2s b1 s1 htr ctrl
• Ho2s b1 s1 low ref
• Ho2s b1 s2 hi sig
• Ho2s b1 s2 htr ctrl
• Ho2s b1 s2 low ref
• Ho2s b2 s1 hi sig
• Ho2s b2 s1 htr ctrl
• Ho2s b2 s1 low ref
• Ho2s b2 s2 hi sig
• Ho2s b2 s2 htr ctrl
• Ho2s b2 s2 low ref
• Humidity sens sig
• Input signal
• J125
• J126
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sensor 1 (lower left side of engine)
• Knock sensor 2 (lower right side of engine)
• Low ref
• Low reference
• Maf sens sig
• Manifold absolute pressure sensor (map) (top rear of engine)
• Map sens sig
• Multifunction intake air sensor (right side of engine compt, in air intake duct)
• Nca
• Purge sol ctrl
• Reverse sw sig
• Sens sig
• Sig gnd
• Spd sens sig
• Starting/charging system
• Sw sig
• Tac ctrl opn
• Tac mtr ctrl
• Throttle body (top right front of engine)
• Trans p/n sig
• Transmissions system
• Volt ref
• X125
• X160

5.3L VIN C

5.3L VIN C, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014:

• (above accelerator pedal) accelerator pedal position (app) sensor
• (left side of engine compt) underhood fuse block
• (near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
• 5 volt reference
• 5 volt reference (1)
• 5 volt reference (2)
• 5v reference
• A/c compressor clutch rly ctrl
• A/c refrigerant pressure sens sig
• Accessory wakeup serial data
• Air conditioning system
• Ambient air temperature sens sig
• App sens 1 sig
• App sens 2 sig
• Battery positive voltage
• Check engine indicator cntrl
• Computer data lines system
• Cooling fans system
• Cruise/etc/tcc brake signal
• Data out signal
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Evap canister vent sol ctrl
• Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle)
• Exterior lights system
• Four wheel drive low signal
• Four wheel drive wheel lock ind
• Fuel level sens sig
• Fuel level sensor
• Fuel line pressure sens 5v ref
• Fuel line pressure sensor low ref
• Fuel line pressure sensor signal
• Fuel pump
• Fuel pump & level sensor assembly (inside fuel tank)
• Fuel tank pressure (ftp) sensor (on fuel pump & sender assembly)
• Fuel tank pressure sensor signal
• Fuel temp/composition sig
• Gmlan serial data (+) (1)
• Gmlan serial data (+)(3)
• Gmlan serial data (-) (1)
• Gmlan serial data (-)(3)
• High spd cooling fan relay cntrl
• J375
• Low ref
• Powertrain relay coil control
• Pressure sensor signal
• Relay fused sply (1)
• Relay fused sply (2)
• Run/crank ignition 1 voltage
• Sens low ref
• Starter enable relay control
• Starting/charging system
• Transmissions system
• X115
• X115 computer data lines system
• X119
• X125

5.3L VIN C, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014:

• (behind brake pedal assembly) brake pedal position sensor
• (on lower left front of engine) g102
• Active grille air shutter motor module 1 (left front corner of vehicle)
• Active grille air shutter motor module 2 (right front corner of vehicle)
• Aero shutter fuse 10a
• Batt
• Chassis control module
• Cntrl
• Cntrl 2
• Computer data lines system
• Data (+)
• Data (-)
• Driver information center (dic)
• Ecm ign fuse 15a
• Engine oil ind
• Fppm fuse 30a
• Fuel gauge ind
• G102 (on lower left front of engine)
• G121 (under vehicle at driver door on body mount frame post)
• G2 x1
• G2 x5
• Gnd
• Hot at all times
• Hot w/ ignition main relay energized
• Ign 1 volt
• Instrument cluster
• J105
• J386
• J388
• Lo spd gmlan
• Logic
• Low engine oil pressure ind
• Malfunction ind lamp (mil)
• Ser data
• Underhood fuse block (left side of engine compt)
• X1 c1
• X119
• X132
• X225
• X5 h6
• X5 j5

5.3L VIN C, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014:

• (upper right side of engine) ignition coil 8
• A/c clutch fuse 10a
• A/c compressor clutch relay
• Ambient air temperature sensor (on left side of radiator support)
• Batt
• Computer data lines system
• Data (+)
• Data (-)
• Ecm fuse 30a
• Ecm ign fuse 15a
• Eng fuse 15a
• Engine controls ignition relay
• Engine coolant temperature sensor (on top of engine)
• Fuel composition sensor (between fuel tank & electronic brake control module)
• Fuel pressure sensor
• Fuel pump driver control module (mounted to bracket above spare tire)
• G121 (under vehicle at driver door on body mount frame post)
• G140 (top right rear of engine)
• Gnd
• Hot at all times
• Hot w/ ign main relay energized
• Ign 1 volt
• Inj a odd fuse 20a
• Inj b even fuse 20a
• J163
• J2 x2
• J355
• J356
• Low ref
• Nca
• O2 sensor b fuse 15a
• O2 snsr a fuse 15a
• Out sig
• Ser data
• Shield
• Spark plug
• Sply volt
• Tcm/ ecm fuse 15a
• Underhood fuse block (left side of engine compt)
• X105
• X5 h3

5.3L VIN C, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014:

• (left rear corner of engine)
• (top right rear of engine)
• (upper left side of engine)
• (upper right side of engine)
• 5-volt reference 1
• 60x sensor volt
• Actuator hi ctrl
• Actuator low ref
• Camshaft position actuator solenoid valve (front center of engine)
• Ckp sensor signal
• Cylinder 1
• Cylinder 2
• Cylinder 3
• Cylinder 4
• Cylinder 5
• Cylinder 6
• Ect sens sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (top rear of engine)
• G130
• G140
• High pressure fuel pump (top rear of the engine)
• Ign control (1)
• Ign control (2)
• Ign control (3)
• Ign control (4)
• Ign control (5)
• Ign control (6)
• Ign control (7)
• Ign control (8)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Intake sens 1
• Intake solenoid
• J161
• J162
• J166
• J167
• Low ref
• Nca
• Oil press sens sig
• Sensor 2 signal
• Spark plug
• Sply volt
• X154
• X161

5.3L VIN C, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014:

• (on intake manifold) evaporative emission (evap) canister purge solenoid valve
• (top of left cylinder bank) fuel injector 1
• (top of left cylinder bank) fuel injector 3
• (top of left cylinder bank) fuel injector 5
• (top of left cylinder bank) fuel injector 7
• (top of right cylinder bank) fuel injector 2
• (top of right cylinder bank) fuel injector 4
• (top of right cylinder bank) fuel injector 6
• (top of right cylinder bank) fuel injector 8
• (upper left side of engine) ignition coil 7
• Camshaft position sensor (front of engine, above crank pulley)
• Cntrl 1
• Cntrl 2
• Cntrl 4
• Crankshaft position sensor (right rear of engine)
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure control solenoid valve (front of the engine, behind front cover)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• G110 (left front lower side of engine block)
• G130 (left rear corner of engine)
• Gnd
• J125
• Low ref
• Nca
• Spark plug
• Valve lifter oil manifold assembly (below intake manifold)
• X154
• X160
• X161
• X173

5.3L VIN C, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014:

• (downstream of left catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• (downstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• (upstream of left catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1
• (upstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1
• 5 volt ref
• 5v sensor ref
• Air temp sens sig
• Charge ind cntrl
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil level switch (left side of oil pan)
• Exterior lights system
• Fuel rail press sen 5v
• Fuel rail press sen sig
• Fuel rail pressure sensor (top left rear of engine)
• G110 (left front lower side of engine block)
• Gen duty cyle sig
• Ho2s b1 s1 hi sig
• Ho2s b1 s1 lo sig
• Ho2s b1 s2 hi sig
• Ho2s b1 s2 lo sig
• Ho2s b2 s1 hi sig
• Ho2s b2 s1 lo sig
• Ho2s b2 s2 hi sig
• Ho2s b2 s2 lo sig
• Ho2s htr b1 s1 lo ctrl
• Ho2s htr b1 s2 lo ctrl
• Ho2s htr b2 s1 lo ctrl
• Ho2s htr b2 s2 lo ctrl
• Humidity sens sig
• Input signal
• J125
• J126
• Knock sen 1 lo ref
• Knock sen 2 lo ref
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sensor 1 (lower left side of engine)
• Knock sensor 2 (lower right side of engine)
• Low ref
• Maf sens sig
• Manifold absolute pressure sensor (map) (on top of intake manifold)
• Map sens sig
• Multifunction intake air sensor (right side of engine compt, in air intake duct)
• Nca
• Oil lvl sw sig
• Oil pump command sig
• P/n sw sig
• Purge sol ctrl
• Reverse sw sig
• Sig gnd
• Spd sens sig
• Starting/charging system
• Tac ctrl opn
• Tac mtr ctrl
• Throtle inlet 5v rtn
• Throttle body (top right front of engine)
• Tps (sent1) sig
• Tps 5v ref
• Tps lo ref
• Transmissions system
• X125
• X160

6.2L VIN J

6.2L VIN J, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (1 of 6) for GMC Sierra 1500 2014:

• (above accelerator pedal) accelerator pedal position (app) sensor
• (left side of engine compt) underhood fuse block
• (near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
• 5 volt reference
• 5 volt reference (1)
• 5 volt reference (2)
• 5v reference
• A/c compressor clutch rly ctrl
• A/c refrigerant pressure sens sig
• Accessory wakeup serial data
• Air conditioning system
• Ambient air temperature sens sig
• App sens 1 sig
• App sens 2 sig
• Battery positive voltage
• Check engine indicator cntrl
• Computer data lines system
• Cooling fans system
• Cruise/etc/tcc brake signal
• Data out signal
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Evap canister vent sol ctrl
• Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle)
• Exterior lights system
• Four wheel drive low signal
• Four wheel drive wheel lock ind
• Fuel level sens sig
• Fuel level sensor
• Fuel line pressure sens 5v ref
• Fuel line pressure sensor low ref
• Fuel line pressure sensor signal
• Fuel pump
• Fuel pump & level sensor assembly (inside fuel tank)
• Fuel tank pressure (ftp) sensor (on fuel pump & sender assembly)
• Fuel tank pressure sensor signal
• Fuel temp/composition sig
• Gmlan serial data (+) (1)
• Gmlan serial data (+)(3)
• Gmlan serial data (-) (1)
• Gmlan serial data (-)(3)
• High spd cooling fan relay cntrl
• J375
• Low ref
• Powertrain relay coil control
• Pressure sensor signal
• Relay fused sply (1)
• Relay fused sply (2)
• Run/crank ignition 1 voltage
• Sens low ref
• Starter enable relay control
• Starting/charging system
• Transmissions system
• X115
• X115 computer data lines system
• X119
• X125

6.2L VIN J, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (2 of 6) for GMC Sierra 1500 2014:

• (behind brake pedal assembly) brake pedal position sensor
• (on lower left front of engine) g102
• Active grille air shutter motor module 1 (left front corner of vehicle)
• Active grille air shutter motor module 2 (right front corner of vehicle)
• Aero shutter fuse 10a
• Batt
• Chassis control module
• Cntrl
• Cntrl 2
• Computer data lines system
• Data (+)
• Data (-)
• Driver information center (dic)
• Ecm ign fuse 15a
• Engine oil ind
• Fppm fuse 30a
• Fuel gauge ind
• G102 (on lower left front of engine)
• G121 (under vehicle at driver door on body mount frame post)
• G2 x1
• G2 x5
• Gnd
• Hot at all times
• Hot w/ ignition main relay energized
• Ign 1 volt
• Instrument cluster
• J105
• J386
• J388
• Lo spd gmlan
• Logic
• Low engine oil pressure ind
• Malfunction ind lamp (mil)
• Ser data
• Underhood fuse block (left side of engine compt)
• X1 c1
• X119
• X132
• X225
• X5 h6
• X5 j5

6.2L VIN J, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (3 of 6) for GMC Sierra 1500 2014:

• (upper right side of engine) ignition coil 8
• A/c clutch fuse 10a
• A/c compressor clutch relay
• Ambient air temperature sensor (on left side of radiator support)
• Batt
• Computer data lines system
• Data (+)
• Data (-)
• Ecm fuse 30a
• Ecm ign fuse 15a
• Eng fuse 15a
• Engine controls ignition relay
• Engine coolant temperature sensor (on top of engine)
• Fuel composition sensor (between fuel tank & electronic brake control module)
• Fuel pressure sensor
• Fuel pump driver control module (mounted to bracket above spare tire)
• G121 (under vehicle at driver door on body mount frame post)
• G140 (top right rear of engine)
• Gnd
• Hot at all times
• Hot w/ ign main relay energized
• Ign 1 volt
• Inj a odd fuse 20a
• Inj b even fuse 20a
• J163
• J2 x2
• J355
• J356
• Low ref
• Nca
• O2 sensor b fuse 15a
• O2 snsr a fuse 15a
• Out sig
• Ser data
• Shield
• Spark plug
• Sply volt
• Tcm/ ecm fuse 15a
• Underhood fuse block (left side of engine compt)
• X105
• X5 h3

6.2L VIN J, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (4 of 6) for GMC Sierra 1500 2014:

• (left rear corner of engine)
• (top right rear of engine)
• (upper left side of engine)
• (upper right side of engine)
• 5-volt reference 1
• 60x sensor volt
• Actuator hi ctrl
• Actuator low ref
• Camshaft position actuator solenoid valve (front center of engine)
• Ckp sensor signal
• Cylinder 1
• Cylinder 2
• Cylinder 3
• Cylinder 4
• Cylinder 5
• Cylinder 6
• Ect sens sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (top rear of engine)
• G130
• G140
• High pressure fuel pump (top rear of the engine)
• Ign control (1)
• Ign control (2)
• Ign control (3)
• Ign control (4)
• Ign control (5)
• Ign control (6)
• Ign control (7)
• Ign control (8)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Intake sens 1
• Intake solenoid
• J161
• J162
• J166
• J167
• Low ref
• Nca
• Oil press sens sig
• Sensor 2 signal
• Spark plug
• Sply volt
• X154
• X161

6.2L VIN J, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (5 of 6) for GMC Sierra 1500 2014:

• (on intake manifold) evaporative emission (evap) canister purge solenoid valve
• (top of left cylinder bank) fuel injector 1
• (top of left cylinder bank) fuel injector 3
• (top of left cylinder bank) fuel injector 5
• (top of left cylinder bank) fuel injector 7
• (top of right cylinder bank) fuel injector 2
• (top of right cylinder bank) fuel injector 4
• (top of right cylinder bank) fuel injector 6
• (top of right cylinder bank) fuel injector 8
• (upper left side of engine) ignition coil 7
• Camshaft position sensor (front of engine, above crank pulley)
• Cntrl 1
• Cntrl 2
• Cntrl 4
• Crankshaft position sensor (right rear of engine)
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure control solenoid valve (front of the engine, behind front cover)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• G110 (left front lower side of engine block)
• G130 (left rear corner of engine)
• Gnd
• J125
• Low ref
• Nca
• Spark plug
• Valve lifter oil manifold assembly (below intake manifold)
• X154
• X160
• X161
• X173

6.2L VIN J, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014

List of elements for 6.2L VIN J, Engine Performance Wiring Diagram (6 of 6) for GMC Sierra 1500 2014:

• (downstream of left catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• (downstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• (upstream of left catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1
• (upstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1
• 5 volt ref
• 5v sensor ref
• Air temp sens sig
• Charge ind cntrl
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil level switch (left side of oil pan)
• Exterior lights system
• Fuel rail press sen 5v
• Fuel rail press sen sig
• Fuel rail pressure sensor (top left rear of engine)
• G110 (left front lower side of engine block)
• Gen duty cyle sig
• Ho2s b1 s1 hi sig
• Ho2s b1 s1 lo sig
• Ho2s b1 s2 hi sig
• Ho2s b1 s2 lo sig
• Ho2s b2 s1 hi sig
• Ho2s b2 s1 lo sig
• Ho2s b2 s2 hi sig
• Ho2s b2 s2 lo sig
• Ho2s htr b1 s1 lo ctrl
• Ho2s htr b1 s2 lo ctrl
• Ho2s htr b2 s1 lo ctrl
• Ho2s htr b2 s2 lo ctrl
• Humidity sens sig
• Input signal
• J125
• J126
• Knock sen 1 lo ref
• Knock sen 2 lo ref
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sensor 1 (lower left side of engine)
• Knock sensor 2 (lower right side of engine)
• Low ref
• Maf sens sig
• Manifold absolute pressure sensor (map) (on top of intake manifold)
• Map sens sig
• Multifunction intake air sensor (right side of engine compt, in air intake duct)
• Nca
• Oil lvl sw sig
• Oil pump command sig
• P/n sw sig
• Purge sol ctrl
• Reverse sw sig
• Sig gnd
• Spd sens sig
• Starting/charging system
• Tac ctrl opn
• Tac mtr ctrl
• Throtle inlet 5v rtn
• Throttle body (top right front of engine)
• Tps (sent1) sig
• Tps 5v ref
• Tps lo ref
• Transmissions system
• X125
• X160