ENGINE PERFORMANCE – Chevrolet Caprice PPV 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.6L VIN 3

3.6L VIN 3, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Caprice PPV 2012:

• (accelerator pedal assembly) accelerator pedal position sensor
• (primary fuel tank harness, between connector x305 & fuel pump level sender)
• (top of fuel tank) fuel tank pressure sensor
• 5v ref
• 5v ref 3
• 5v ref 4
• 5v reference 1
• 5v vol 1 ref
• A/c clutch rly ctrl
• A/c pressure sens 5v ref 1
• A/c refrigerant pressure low ref
• A/c refrigerant pressure sens sig
• A/c refrigerant pressure sensor (integral to a/c compressor)
• Air conditioning system
• App low ref (1)
• App low ref (2)
• App sens sig (1)
• App sens sig (2)
• Batt pos vol
• Brake pedal position sensor (mounted on brake pedal bracket)
• Brk pedal pos sen sig
• Check engine ind ctrl
• Computer data lines system
• Cooling fan rly ctrl
• Cooling fans system
• Engine control module (right front of engine compt)
• Evap canister vent sol ctrl
• Evaporative emission vent solenoid valve (above rear differential)
• Fuel level sensor
• Fuel pump
• Fuel pump & level sensor assembly (top of fuel tank)
• Fuel pump rly ctrl
• Fuel tank pressure sens sig
• Fuel temp sig
• Gmlan serial data bus +
• Gmlan serial data bus -
• Ign vol 1
• J330
• Lo ref
• Low speed cooling fan rly ctrl
• Nca
• Pnk
• Powertrain main rly (1)
• Powertrain main rly (2)
• Powertrain main rly (3)
• Powertrain rly ctrl
• Pressure sens sig
• Primary fuel level sens sig
• Secondary fuel level sens sig
• Secondary fuel level sensor (top of fuel tank)
• Sens low ref
• Starter rly ctrl
• Starting/charging system
• Stop lp sw sig
• Tan
• Transmissions system
• Wake-up sig
• X102
• X104
• X206
• X305
• X403

3.6L VIN 3, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Caprice PPV 2012:

• 5v ref
• A/c compressor clutch relay
• Batt pos vol
• Cnstr vent fuse 10a
• Computer data lines system
• Drain wire
• Driver information center display
• Ecm 1-v6 fuse 20a
• Ecm batt fuse 15a
• Emis 1 fuse 15a
• Emis 2 fuse 15a
• Engine controls ignition relay
• Exhaust bank 2 camshaft position actuator solenoid valve (front of left cylinder head)
• Fscm fuse 20a
• Fuel pressure sensor (top of fuel tank)
• Fuel pump control module (under battery)
• Fuel pump ctrl
• Fuel snsr fuse 15a
• G405 (rear panel of luggage compt)
• Gnd
• Hot at all times
• Hot w/ ignition main relay energized
• Ign
• Ign eng/ fscm fuse 10a
• Ign odd fuse 15a
• Ign vol 1
• Inj even fuse 20a
• Instrument cluster
• Intake bank 2 camshaft position actuator solenoid valve (front of left cylinder head)
• J120
• J139
• Logic
• Low ref
• Malfunction indicator lamp
• Nca
• Oil level indicator lamp
• Pnk
• Press snsr sig
• Pump rly ctrl
• Rear body fuse block (left luggage compt, above battery)
• Ser data bus +
• Ser data bus -
• Ser data comm
• Serial data
• Underhood fuse block (right front of engine compt)
• X102
• X206
• X305
• X317
• X403

3.6L VIN 3, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Caprice PPV 2012:

• (bottom right center of engine oil pan) engine oil level & temperature sensor
• (rear of left cylinder head) high pressure fuel pump
• (right rear of engine) crankshaft position sensor
• (top right side of fuel tank) fuel composition sensor
• Body control module (above accelerator pedal)
• Comm enbl fuse 10a
• Drive
• Electronic brake control module (right front strut tower)
• Engine coolant temperature sensor (left side of left cylinder head)
• Engine oil pressure switch
• Exhaust bank 1 camshaft position actuator solenoid valve (front of right cylinder bank)
• Exhaust bank 2 camshaft position sensor (front of left cylinder head)
• Fuel pump control module relay
• G102 (right side of engine compt)
• G106
• Hot at all times
• Intake bank 1 camshaft position actuator solenoid valve (front of right cylinder bank)
• Intake bank 1 camshaft position sensor (front of right cylinder head)
• J123
• J127
• Pnk
• Rly
• Tan
• Underhood fuse block (right front of engine compt)
• Volt
• W/ final
• W/o final drive
• X102
• X104
• X165
• X201
• X206
• X3 ctrl rly
• X305
• X403
• X422
• X423

3.6L VIN 3, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Caprice PPV 2012:

• (above ignition coil 1 right cylinder) ignition coil 1
• (above ignition coil 2 left cylinder) ignition coil 2
• (above ignition coil 3 right cylinder) ignition coil 3
• (above ignition coil 4 left cylinder) ignition coil 4
• (above ignition coil 5 right cylinder) ignition coil 5
• (above ignition coil 6 left cylinder) ignition coil 6
• (engine harness, between breakouts of fuel injectors 2 & 6)
• (engine harness, between breakouts of fuel injectors 3 & 5) j118
• (odd ignition coil harness, between coil 3 & 5 breakouts from harness)
• 5v ref
• 5v ref 1
• 6ox snsr low ref
• 6ox snsr sig
• Actuator hi ctrl
• Actuator low ctrl
• B pnk
• C pnk
• Camshaft 2 ctrl
• Camshaft 3 ctrl
• Camshaft 4 ctrl
• D pnk
• Ect sens low ref
• Ect sens sig
• Engine control module (right front of engine compt)
• Exhaust ctrl camshaft
• Exhaust ref (1)
• Exhaust sens (1)
• Exhaust snsr 2
• Fuel inj ctrl 1
• Fuel inj ctrl 2
• Fuel inj ctrl 3
• Fuel inj ctrl 4
• Fuel inj ctrl 5
• Fuel inj ctrl 6
• G109
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Intake sens 1 sig
• Intake sens 2
• Intake sens 5v
• J106
• J119
• J131
• J133 (odd ignition coil harness, between coil 3 & 5 breakouts from harness)
• Low ref (1)
• Low ref bank 1
• Low ref bank 2
• Nca
• Oil press low ref
• Oil press sw sig
• Oil temp snsr sig
• Pnk
• Spark plug
• Tan

3.6L VIN 3, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Caprice PPV 2012:

• (near throttle body) evaporative emission purge solenoid valve
• (top of fuel injector 1 cylinder) fuel injector 1
• (top of fuel injector 2 cylinder) fuel injector 2
• (top of fuel injector 3 cylinder) fuel injector 3
• (top of fuel injector 4 cylinder) fuel injector 4
• (top of fuel injector 5 cylinder) fuel injector 5
• (top of fuel injector 6 cylinder) fuel injector 6
• 5v ref 1
• Brake booster pump motor relay
• Engine control module (right front of engine compt)
• Exhaust bank 1 camshaft position sensor (front of right cylinder head)
• Exhaust low ref (2)
• Fuel inj cyln 1
• Fuel inj cyln 2
• Fuel inj cyln 3
• Fuel inj cyln 4
• Fuel inj cyln 5
• Fuel inj cyln 6
• G106
• Gnd
• Intake bank 2 camshaft position sensor (front of left cylinder head)
• Intake low ref (2)
• Low ref
• Pnk
• X102
• X160
• X161

3.6L VIN 3, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Caprice PPV 2012

List of elements for 3.6L VIN 3, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Caprice PPV 2012:

• (exhaust, after left catalytic converter) heated oxygen sensor bank 2 sensor 2
• (exhaust, after right catalytic converter) heated oxygen sensor bank 1 sensor 2
• (exhaust, before left catalytic converter) heated oxygen sensor bank 2 sensor 1
• (exhaust, before right catalytic converter) heated oxygen sensor bank 1 sensor 1
• 5-v 1 ref
• 5-v 4 ref
• 5v ref 3
• 5v return
• Air temp sens sig
• C tan
• Charge ind sig
• Duty cycle sig
• Engine control module (right front of engine compt)
• Evap purge sol ctrl
• Frp sens sig
• Fuel rail pressure sensor (top center front of engine)
• G106
• Ground
• Hi bank 1 sens (1)
• Hi bank 1 sens (2)
• Hi bank 2 sens (1)
• Hi bank 2 sens (2)
• Ho2s htr low ctrl (1)
• Ho2s htr low ctrl (2)
• Ho2s htr low snsr (1)
• Ho2s htr low snsr (2)
• J121 (engine harness, approximately 5 cm from g110 breakout)
• J182 (cooling fan relay harness, near underhood fuse block)
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sensor 1 (right side of engine block)
• Knock sensor 2 (left side of engine block)
• Low bank 1 sens (1)
• Low bank 1 sens (2)
• Low bank 2 sens (1)
• Low bank 2 sens (2)
• Low ref
• Low ref (1)
• Low ref (2)
• Maf sens sig
• Manifold absolute pressure sensor (top rear of intake manifold)
• Map sens sig
• Multifunction intake air sensor (air cleaner assembly)
• Park/neutral sig (1)
• Pnk
• Power distribution system
• Sens sig
• Starting/ charging system
• Tan
• Throttle actu ctrl close
• Throttle actu ctrl open
• Throttle body (upper front center of engine)
• X160

6.0L VIN 2

6.0L VIN 2, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Caprice PPV 2012

List of elements for 6.0L VIN 2, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Caprice PPV 2012:

• (exhaust, after left catalytic converter) heated oxygen sensor bank 1 sensor 2
• (exhaust, after right catalytic converter) heated oxygen sensor bank 2 sensor 2
• (integral to a/c compressor) a/c refrigerant pressure sensor
• (primary fuel tank harness, between connector x305 & fuel pump level sender)
• 5v ref
• Acc ser data
• Accelerator pedal position sensor (accelerator pedal assembly)
• App sens 1 sig
• App sens 2 sig
• Batt pos volt
• Brake pedal position sensor (mounted on brake pedal bracket)
• Brk sens sig
• Computer data lines system
• Cooling fans system
• Ecm batt fuse 15a
• Engine control module (right front of engine compt)
• Fan rly ctrl
• Fscm fuse 20a
• Fuel 5v ref
• Fuel level sens
• Fuel pump & level sensor assembly (top of fuel tank)
• Fuel sens sig
• Fuel tank pressure sensor (top of fuel tank)
• Ful pmp rly ctrl
• G110 (right side of engine block)
• Ho2s hi sig
• Ho2s lo sig
• Hot at all times
• Iat sens sig
• Ign volt
• J330
• Logic
• Low ref
• Maf sens sig
• Mass air flow/ intake air temperature sensor (air intake duct)
• Nca
• Park/neutral sig
• Pnk
• Press sens sig
• Rear body fuse block (left luggage compt, above battery)
• Secondary fuel level sensor (top of fuel tank)
• Ser data bus+
• Ser data bus-
• Start rly ctrl
• Starting/ charging system
• Starting/charging system
• Stp lp sw sig
• Tan
• Transmissions system
• X102
• X104
• X206
• X305
• X403

6.0L VIN 2, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Caprice PPV 2012

List of elements for 6.0L VIN 2, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Caprice PPV 2012:

• (top right side of fuel tank) fuel composition sensor
• A/c compressor clutch relay
• Air conditioning system
• Clutch rly ctrl
• Cnstr vent fuse 10a
• Computer data lines system
• Ecm 1-v6 fuse 20a
• Emis 1 fuse 15a
• Engine control module (right front of engine compt)
• Engine controls ignition relay
• Evap sol ctrl
• Evaporative emission (evap) vent solenoid valve (above rear differential)
• Fuel snsr fuse 15a
• Ful lvl sens sig
• G110 (right side of engine block)
• Gnd
• Ho2s hi sig
• Ho2s lo ctrl
• Hot at all times
• Hot w/ ignition main relay energized
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ign eng/ fscm fuse 10a
• Inj even fuse 15a
• Inj even fuse 20a
• Instrument panel cluster (ipc)
• J120
• J170
• J199 (engine harness, between harness breakout to connector x102 & underhood fuse block connector x1)
• Logic
• Low ref
• Low spd gmlan serial data
• Main rly ctrl
• Malfunction indicator lamp
• Mil control
• Mil ctrl
• Nca
• Oil level indicator lamp
• Pnk
• Pwr/ trn fuse 15a
• Underhood fuse block (right front of engine compt)
• X102
• X104
• X206
• X305

6.0L VIN 2, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Caprice PPV 2012

List of elements for 6.0L VIN 2, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Caprice PPV 2012:

• (forward lamp harness, beneath relay block off underhood electrical center) j111
• (rear panel of luggage compt) g405
• (right front strut tower) electronic brake control module
• (under battery) fuel pump control module
• 5v ref
• Batt pos volt
• Body control module (above accelerator pedal)
• Com
• Comm enbl fuse 10a
• Computer data lines system
• Drain wire
• Fuel pump control relay
• G102 (right side of engine compt)
• G112 (left rear of engine block)
• Ground
• Hi spd bus +
• Hi spd bus -
• Hot at all times
• Ign1 volt
• Ignition coil 1 (above ignition coil 1 left cylinder)
• Ignition coil 3 (above ignition coil 3 left cylinder)
• Ignition coil 5 (above ignition coil 5 left cylinder)
• Ignition coil 7 (above ignition coil 7 left cylinder)
• J127
• J130
• J133 (odd ignition coil harness, between coil 3 & 5 breakouts from harness)
• J142 (odd ignition coil harness, between connector x113 & coil connectors jumper harness)
• Low ref
• Nca
• Pnk
• Pump ctrl
• Sens sig
• Serial data
• To spark plug
• Underhood fuse block (right front of engine compt)
• X104
• X112
• X113
• X165
• X201
• X206
• X305
• X317
• X403

6.0L VIN 2, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Caprice PPV 2012

List of elements for 6.0L VIN 2, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Caprice PPV 2012:

• (above ignition coil 2 right cylinder)
• (above ignition coil 6 right cylinder)
• (above ignition coil 8 right cylinder)
• (engine harness, approximately 5 cm from g110 breakout) j121
• (even ignition coil harness, between coil 4 & 6 breakouts from harness) j132
• (top of fuel injector 1 cylinder)
• (top of fuel injector 2 cylinder)
• (top of fuel injector 3 cylinder)
• (top of fuel injector 4 cylinder)
• (top of fuel injector 5 cylinder)
• (top of fuel injector 6 cylinder)
• (top of fuel injector 7 cylinder) fuel injector 7
• (top of fuel injector 8 cylinder)
• (top of fuel tank) fuel pressure sensor
• Engine oil pressure sensor (top rear of engine)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 8
• G110 (right side of engine block)
• Ignition coil 2
• Ignition coil 4 (above ignition coil 4 right cylinder)
• Ignition coil 6
• Ignition coil 8
• J114 (engine harness, approximately 4cm from x112 breakout)
• J118 (engine harness, between breakouts of fuel injectors 3 & 5)
• J129
• J141 (even ignition coil harness, between coil 4 & 6 breakouts from harness)
• Manifold absolute pressure sensor (top front of intake manifold)
• Nca
• Pnk
• To spark plug
• X112

6.0L VIN 2, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Caprice PPV 2012

List of elements for 6.0L VIN 2, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Caprice PPV 2012:

• (bottom right center of engine oil pan) engine oil level & temperature sensor
• (left side of engine block) knock sensor 1
• (near throttle body) evaporative emission purge solenoid valve
• (right side of engine block) knock sensor 2
• (top rear of engine) valve lifter oil manifold assembly
• 5v ref
• Camshaft position sensor (lower left front of engine)
• Ckp sens sig
• Cmp sens sig
• Crankshaft position sensor (right front of engine)
• Ect sens sig
• Engine control module (right front of engine compt)
• Engine coolant temperature sensor (front of left cylinder head)
• Gen field sig
• Gen on sig
• Heated oxygen sensor bank 1 sensor 1 (exhaust, before left catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (exhaust, before right catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Ks 1 sig
• Ks 2 sig
• Low ref
• Low ref ks sig
• Map sens sig
• Nca
• Oil lvl sw sig
• Oil pre sens sig
• Oiltmp sens sig
• Sol ctrl
• Sol ctrl 1
• Sol ctrl 2
• Sol ctrl 3
• Sol ctrl 4
• Starting/ charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Throttle body (front of intake manifold)
• Tp sens 1 sig
• Tp sens 2 sig