ENGINE PERFORMANCE – Chevrolet Sonic LS 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.4L VIN B

1.4L VIN B, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Sonic LS 2012:

• (in automatic transmission) (m/t) transmission output shaft speed sensor
• (top of fuel tank) fuel tank pressure sensor
• 5 volt ref
• 5volt ref
• Absolt press sens sig
• Clutch pedal pressure sensor (m/t) (on clutch pedal assembly)
• Computer data lines system
• Eng coolant temp sens sig
• Engine control module (ecm) (left side of engine compt)
• Engine coolant temperature (ect) sensor 1 (left front of engine)
• Evap canister pur sol ctrl
• Exterior lights system
• Fuel tank press sens sig
• Generator field duty cycle sig
• Ho2s high sig bank 1 sens 2
• Ho2s htr hi ctrl bank1 sens2
• Ho2s low sig bank 1 sens 2
• Instrument cluster
• Instrument cluster system
• Intake manifold tuning solenoid valve (right rear of engine)
• Lo spd gmlan serial data
• Logic
• Low ref
• Malfunction ind
• Manifold absolute pressure sensor (right rear of engine in intake manifold)
• Output spd digital sig
• Overrun air valve sol
• Primary fuel lvl sens sig
• Reverse sw sig
• Sens sig
• Starting/charging system
• Turbocharger bypass solenoid valve
• Waste gate sol ctrl
• X101
• X202
• X401

1.4L VIN B, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Sonic LS 2012:

• (exhaust manifold) heated oxygen sensor 1
• (exhaust, downstream of catalytic converter) heated oxygen sensor 2
• (right side of engine) evaporative emission purge solenoid valve
• (right side of fuel tank) evaporative emission vent solenoid valve
• Accelerator pedal position (app) sensor (top of accelerator pedal assembly)
• Engine coolant temperature (ect) sensor 2 (rear of engine block)
• Exhaust camshaft position actuator solenoid valve (left front of engine)
• G104 (rear of cylinder bank)
• Intake camshaft position actuator solenoid valve (right front of engine)
• Multifunction intake air sensor (after air cleaner)
• Nca
• X100
• X101
• X202
• X401

1.4L VIN B, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Sonic LS 2012:

• 5 volt ref
• A/c compr clth rly ctrl
• A/c rfgt pr sens sig
• Acc pedal pos sig 1
• Acc pedal pos sig 2
• Charge ind ctrl
• Check engine ind ctrl
• Cooling fans system
• Cruise control system
• Cruise/etc/tcc brk sig
• D10
• Ecm 1 fuse 10a
• Ecm 2 fuse 20a
• Ecm 3 fuse 10a
• Ecm 4 fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Engine control module (ecm) (left side of engine compt)
• Engine controls ignition relay
• Evap canstr vent ctrl
• Fans system cooling
• Flux fuel fuse 10a
• Fscm 1 fuse 20a
• High speed relay ctrl
• Hot at all times
• Hot w/ ign run relay energized
• Ign
• Injector fuse 15a
• Intake sens ctrl
• J117
• J118
• J12
• J128 (a/t)
• J132
• J133
• Lines system computer data
• Low ref
• Low spd cooling
• Mas air flow sens sig
• Park netrl pos sw sig
• Powertrain rly ctrl
• Pre tr air temp pr sig
• Pres sens 5 v ref
• Press sens sig
• Primary rly ctrl
• Rvc fuse 10a
• Serial data + 1
• Serial data - 1
• Starting/charging system
• Startr enble rly ctrl
• System air conditioning
• Temp sens 2 sig
• Temp sens sig
• Transmissions system
• Underhood fuse block (next to left front strut tower)
• Underhood fuse block (next to left front x3 strut tower)
• Wakeup serial data

1.4L VIN B, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Sonic LS 2012:

• (top of valve cover) ignition coil module
• (top right side of engine) fuel injectors
• Batt +
• Computer data lines system
• F sply 1 main rly pwrtn
• Fuel
• Fuel lin sens 5v ref
• Fuel press sens sig
• Fuel pump & level sensor assembly (top of fuel tank)
• Fuel pump control module (right side of luggage compt)
• Fuel pump ctrl
• Fuel pump rly ctrl
• G104 (rear of cylinder bank)
• G400 (right "c" pillar)
• Gnd
• Ground
• Hs gmlan +
• Hs gmlan -
• Ign ctrl 1
• Ign ctrl 2
• Ign ctrl 3
• Ign ctrl 4
• Ign volt
• J404
• J405
• J406
• Low ref
• Nca
• Pump
• Serl data comm enbl
• Shield
• Tyrbocharger boost/intake air temperature sensor (attached to the air intake duct)
• Underhood fuse block (next to left front strut tower)
• X401

1.4L VIN B, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Sonic LS 2012:

• A/c refrigerant pressure sensor (right radiator support)
• Crankshaft position sensor (lower right rear of engine)
• Exhaust camshaft position sensor (left front of cylinder head)
• Fuel pressure sensor (right side of engine in fuel feed line)
• Intake camshaft position sensor (right front of cylinder head)
• Knock sensor (right rear of engine block)

1.4L VIN B, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Sonic LS 2012

List of elements for 1.4L VIN B, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Sonic LS 2012:

• (left front of engine) engine coolant thermostat heater
• 5 volt ref
• Camshaft cam w gnd
• Camshaft cam w sig
• Camshaft cam w sup volt
• Camshaft cam x gnd
• Camshaft cam x sig
• Camshaft cam x sup volt
• Camshaft phaser exhaust sol 1
• Camshaft phaser intake sol 1
• Crankshaft 60x sens sig
• Crankshaft 60x sens volt
• Engine control module (left rear of engine compt)
• Engine oil pressure switch
• Fuel inj ctrl 1
• Fuel inj ctrl 2
• Fuel inj ctrl 3
• Fuel inj ctrl 4
• G104 (rear of cylinder bank)
• Ground
• Ho2s high sig bank 1 sens 1
• Ho2s htr low ctrl bank 1 sens 1
• Ho2s low sig bank 1 sens 1
• Ign ctrl 1
• Ign ctrl 2
• Ign ctrl 3
• Ign ctrl 4
• Knock sensor sig 1
• Low ref
• Oil press sw sig ctrl
• Powertrain main rly fuse sply 1
• Thermostat engine cool ctrl
• Throttle actuator ctrl close
• Throttle actuator ctrl open
• Throttle body (on intake manifold, right front of engine)
• Throttle position sensor sig 1
• Throttle position sensor sig 2
• Turbo boost press sens temp sig

1.8L VIN H

1.8L VIN H, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Sonic LS 2012

List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Sonic LS 2012:

• (left side of engine compt) engine control module (ecm)
• 5v ref
• A/c comp clutch rly ctrl
• A/c pressure sensor 5 v ref
• A/c refreg sens sig
• Acc pedal pos 5 v ref
• Acc pedal pos 5 volt
• Acc pedal pos low ref 1
• Acc pedal pos low ref 2
• Acc wakeup serial data
• Accelerator pedal pos sig 1
• Accelerator pedal pos sig 2
• Accelerator pedal position (app) sensor (top of accelerator pedal assembly)
• Air conditioning system
• Battery positive voltage
• Brk pos sens sig
• Check engine indicator ctrl
• Clutch pedal position switch (m/t) (top of clutch pedal assembly)
• Clutch sens volt ref
• Computer data
• Computer data lines system
• Coolant temp sens 2 low ref
• Coolant temp sensor 2 sig
• Cooling fans system
• Cruise control system
• Cruise/etc/tcc brake sig
• D10
• Ecm 1 fuse 10a
• Ecm 2 fuse 20a
• Ecm 3 fuse 10a
• Ecm 4 fuse 10a
• Ecm fuse 15a
• Ecm/ tcm fuse 10a
• Engine controls ignition relay
• Evap canister vent solenoid
• Exterior lights system
• Flex fuel fuse 10a
• Fscm 1 fuse 20a
• Fuel level sensor low ref
• Fuel pump primary relay ctrl
• Fuel tank pressure (ftp) sensor (top of fuel tank)
• Fuel tank pressure sens sig
• G104 (lower right rear of of engine)
• High spd cooling fan rly ctrl
• High spd gmlan serial data (+)
• High spd gmlan serial data (-)
• Hot at all times
• Hot w/ ign run relay energized
• Injector fuse 15a
• Instrument cluster system
• Intake air temp sensor sig
• Intake air temperature sensor
• J117
• J118
• J12
• J128 (a/t)
• J132
• J303
• Lines system
• Low spd cooling fan rly ctrl
• Mass air flow (maf)/intake air temperature sensor (intake, after air cleaner)
• Mass air flow sensor sig
• O/p spd sig
• Pnp sw park sig
• Powertrain main rly sply 1
• Powertrain relay coil ctrl
• Pressure sens 5v ref
• Primary fuel level sens sig
• Reverse sw sig
• Run/crank ignition 1 voltage
• Rvc fuse 10a
• Sensor low ref
• Starter enable rly ctrl
• Starting/ charging system
• Thermostat engine cool ctrl
• Transmissions system
• Underhood fuse block (next to left front strut tower)
• X101
• X202
• X401

1.8L VIN H, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Sonic LS 2012

List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Sonic LS 2012:

• (exhaust manifold) heated oxygen sensor 1
• (exhaust, downstream of catalytic converter) heated oxygen sensor 2
• (in automatic transmission) (m/t) transmission output shaft speed sensor
• (lower right side of radiator) engine coolant temperature sensor 2
• (right rear of engine) intake manifold tuning solenoid valve
• (right side of fuel tank) evaporative emission vent solenoid valve
• 5v ref
• Computer data lines system
• Engine coolant thermostat heater (left rear of engine)
• Fuel
• Fuel pump & level sensor assembly (top of fuel tank)
• Fuel pump control module (base of right "c" pillar)
• Fuel pump ctrl
• G104 (lower right rear of engine)
• G400 (right "c" pillar)
• Gnd
• Hs gmlan +
• Hs gmlan -
• Ign
• Ign volt
• Instrument cluster
• J404
• J405
• J406
• Lo spd gmlan serial data
• Logic
• Low ref
• Mal- function ind
• Nca
• Pump
• Relay ctrl
• Sens sig
• Serial data
• Shield
• Underhood fuse block (next to left front strut tower)
• X100
• X101
• X202
• X401

1.8L VIN H, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Sonic LS 2012

List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Sonic LS 2012:

• (rear of a/c compressor) a/c refrigerant pressure sensor
• (right front of engine) evaporative emission (evap) purge solenoid valve
• (right rear of engine) crankshaft position (ckp) sensor
• (top right side of engine) fuel injectors
• Engine coolant temperature (ect) sensor 1 (rear of engine block)
• F sply 1 pwrtn main rly
• Fuel pressure sensor (right side of engine in fuel feed line)
• G104 (lower right rear of engine)
• Ground
• Ign ctrl 1
• Ign ctrl 2
• Ign ctrl 3
• Ign ctrl 4
• Ignition coil (top of valve cover)
• J133
• Knock sensor (lower right side of engine)
• Low ref
• Manifold absolute pressure sensor (right rear of engine, in intake manifold)
• Tan
• X160

1.8L VIN H, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Sonic LS 2012

List of elements for 1.8L VIN H, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Sonic LS 2012:

• (left front of engine)
• (right front of engine)
• Cam phaser w return low
• Cam phaser x return low ref
• Camshaft phaser exhaust solenoid
• Camshaft phaser intake solenoid 1
• Camshaft position exhaust sensor 1
• Camshaft position intake sensor 1
• Charge indicator control
• Clutch sw fuse 7.5a
• Coolant temp sensor 1 low ref
• Coolant temperature sens 1 sig
• Cpe sensor low ref 1
• Cpi sensir sply volt 1
• Cpi sensor low ref 1
• Cps sensor sply vol
• Crankshaft 60x sensor low ref
• Crankshaft 60x sensor sig
• Crankshaft 60x sensor voltage
• Engine control module (ecm) (left side of engine compt)
• Engine oil pressure switch (lower left front of engine)
• Evap purge ctrl
• Exhaust camshaft position (cmp) actuator solenoid valve
• Exhaust camshaft position sensor (left rear of cylinder head)
• Fuel injector control 1
• Fuel injector control 2
• Fuel injector control 3
• Fuel injector control 4
• G104 (lower right rear of engine)
• Generator field duty cycle sig
• Ground
• Ho2s low sig bank 1 sens 1
• Hos high sig bank 1 sensor 1
• Hos high sig bank 1 sensor 2
• Hos low sig bank 1 sensor 1
• Hos low sig bank 1 sensor 2
• Hot w/ ign run relay energized
• Ign ctrl 1
• Ign ctrl 3
• Ignition control 2
• Ignition control 4
• Imtv control sig
• Imtv position sig
• Instrument panel fuse block (left end of dash)
• Intake camshaft position (cmp) actuator solenoid valve
• Intake camshaft position sensor (right rear of cylinder head)
• Knock sensor low reference 1
• Knock sensor sig 1
• Low ref
• Map sensor 5v ref
• Map sensor low ref
• Map sensor sig
• Oil pressure switch sig
• Starting/ charging system
• Throttle actuator ctrl close
• Throttle actuator ctrl open
• Throttle body (right front of engine, on intake manifold)
• Throttle position sensor 5v ref
• Throttle position sensor low ref
• Throttle position sensor sig 1
• Throttle position sensor sig 2