Chevrolet Sonic I (2011-2016) engine control module (ecm) (left side of engine compt) Wiring diagrams

1.4L, 1.8L VIN H 1.8L VIN G 2500 2501 COMPUTER DATA LINES SYSTEM 29 43 SERIAL DATA (+) 1 AUTOMATIC TRANSMISSION ASSEMBLY BACKUP LAMP SWITCH BLK WIRE BLU WIRE BODY CONTROL MODULE (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES LEFT "C" PILLAR) LEFT BACKUP LAMP LEFT TAIL LAMP ASSEMBLY LOW SPD GMLAN SERIAL DATA LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE OSRVM FUSE PARK/NEUTRAL SIG (1) REARVIEW CAMERA RED WIRE RED/BRN WIRE REVERSE SW SIG RIGHT BACKUP LAMP RIGHT TAIL LAMP ASSEMBLY RVC FUSE SERIAL DATA (-) (1) SIG A SIG B SIG C SIG P SPLY VOLT SUPPLY VOLT TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH UNDERHOOD FUSE BLOCK (NEXT TO LEFT FRONT STRUT TOWER) VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL WIRE

22 38 58 BRK POS SEN LOW REF 25 1 19 HI SPD GMLAN + GND LOW REF 29 43 HI SPD GMLAN + HI SPD GMLAN - BATTERY POS VOLT BCM 5 FUSE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BODY CONTROL MODULE (BCM) (LEFT END OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK APLY 13 7 SNSR SPLY VOLT BRK SPLY SNSR SIG BRK POS SNSR SIG COMPUTER DATA LINES SYSTEM DLIS FUSE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GRY/RED WIRE HI SPD GMLAN HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT PANEL FUSE BLOCK (LEFT END OF DASH) KEY CAPTURE SOLENOID ACTUATOR (ON STEERING COLUMN) KEY-IN SWITCH LT BLU WIRE LT BLU/YEL WIRE M/T A/T NOTCHBACK OFF OFF/RUN/CRANK 15 7 VOLT ACCESSORY VOLT PARK POSITION SWITCH RED/LT GRN WIRE RED/VIO WIRE RUN WIRE TRANSMISSION SHIFT LEVER VIO/YEL WIRE WHT WIRE WHT/LT GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE

5986 333 SERIAL DATA BRK FLUID LVL AMBIENT AIR TEMPERATURE SENSOR (RIGHT SIDE OF FRONT GRILLE) BLK WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRAKE FLUID LEVEL SWITCH (MASTER CYLINDER ASSEMBLY) COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM FUEL LVL SENS SIG FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK) GRY WIRE HATCHBACK LEFT "C" PILLAR) LEFT REAR DOOR LATCH ASSEMBLY LF DOOR AJAR SW SIG LF DR AJAR SWITCH SIG LIFT GATE AJAR SW SIG LIFTGATE LATCH LOW REF LR DR AJAR SWITCH SIG LT BLU/GRY WIRE LT BLU/VIO WIRE LT GRN/GRY WIRE LT GRN/YEL WIRE NETWORK BUS 3 NOTCHBACK OIL PRESSURE SWITCH SIGNAL PARK BRAKE SWITCH SIG PASSENGER DOOR LATCH ASSEMBLY REAR COMPARTMENT LID LATCH RF DR AJAR SWITCH SIG RIGHT REAR DOOR LATCH ASSEMBLY RR DR AJAR SWITCH SIG SERIAL DATA VIO/GRY WIRE VIO/YEL WIRE W/ EMISSION SYSTEM W/ EXPRESS UP/DOWN W/O EXPRESS UP/DOWN W/O POWER FOLDING MIRROR WHT/LT BLU WIRE YEL/LT BLU WIRE

22 38 58 BRK POS SNSR LO REF 2500 2501 COMPUTER DATA LINES SYSTEM 29 43 HI SPD GMLAN + HI SPD GMLAN - AUTOMATIC TRANSMISSION ASSEMBLY BATTERY POS VOLT BCM 5 FUSE BLK WIRE BLK/BRN WHT WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BODY CONTROL MODULE (BCM) (LEFT END OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK POS SNSR SIG BRK SPLY SNSR SIG BRK SPLY SNSR SPLY VOLTAGE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GRY/RED WIRE HI SPD GMLAN HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LEFT END LOW REF LT BLU WIRE LT BLU/YEL WIRE NOTCHBACK OF DASH) PRK LOCK SOLENOID CTRL PRK/NEUT SIG 1 RED/LT GRN WIRE TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION INTERNAL MODE SWITCH (IMS) TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR VIO/BLK WIRE WHT WIRE WHT/GRY WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ GND 1.8L VIN G 1.8L VIN H, 1.4L VIN B AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLU WIRE BODY CONTROL MODULE (LEFT END OF DASH) CENTER CONSOLE MULTI-FUNCTION SWITCH COMPUTER DATA LINES SYSTEM CONTROL SOLENOID CRUISE CONTROL SYSTEM CRUISE/EIC/TCC BRK SIG DRIVER INFORMATION CENTER (DIC) ECO SWITCH ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GMLAN GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 25 24 GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE GRY/LT GRN WIRE HI SPD GMLAN SER DATA (+) HI SPD GMLAN SER DATA (+) HI SPD GMLAN SER DATA (-) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED TCM 1/DC DC CONVERTER TCM 1 FUSE IGN IGN WAKEUP SERIAL DATA HI SPD GMLAN SER DATA (-) INSTRUMENT CLUSTER ISS ISS HIGH LOW LOGIC LOW REF LT BLU WIRE LT GRN WIRE OSS HIGH OSS LOW P/N PARK/ NEUTRAL SIG PC 1 SOLENOID PC 2 SOLENOID PC 3 SOLENOID PC 4 SOLENOID PC 5 SOLENOID PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED WIRE RED/VIO WIRE SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 SS 1 SS 2 TAP UP/TAP DOWN SW SIG TCC SOLENOID TCM FUSE TFP 1 TFP 3 TFP 4 TFP 5 TFT TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION SHIFT LEVER TRNS GND RANGE SIG P TRNS RANGE SIG C TRNS TRNS RANGE RANGE SIG B SIG A UNDERHOOD FUSE BLOCK (NEXT TO LEFT FRONT STRUT TOWER) VALVE ASSEMBLY VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE WHT/LT BLU WIRE WINTER MODE SW SIG YEL WIRE

5 VOLT REF LOW REF BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT INTAKE 5 VOLT CAMSHAFT INTAKE LOW REF CAMSHAFT INTAKE SIG CAMSHAFT PHASER EXHAUST SOL 1 CAMSHAFT PHASER INTAKE SOL 1 CRANKSHAFT POSITION SENS SIG CAMSHAFT EXHAUST SIG ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT THERMOSTAT HEATER (LEFT REAR OF ENGINE) ENGINE OIL PRESSURE SWITCH (LOWER LEFT FRONT OF ENGINE) GROUND GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE IGN CTRL (2) IGN CTRL (4) KNOCK SENSOR SIG 1 LOW REF LOW REF CAMSHAFT EXHAUST LOW REF LOW REF CRANKSHAFT POSITION SENS VOLT CAMSHAFT EXHAUST 5 VOLT LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE POWERTRAIN MAIN RLY FUSE SPLY 1 LOW REF LOW REF OIL PRESSURE SW SIG THROTTLE BODY ASSEMBLY (RIGHT FRONT OF ENGINE, ON INTAKE MANIFOLD) THROTTLE POSITION SENSOR SIG 1 THROTTLE POSITION SENSOR SIG 2 VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE YEL WIRE YEL/BRN WIRE YEL/LT BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

A/T AIR INJ REACTION PUMP LOW REF CLUTCH LOW REF BRK POS SENS LOW REF BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/YEL WIRE BRN/LT GRN WIRE BRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR 1 (REAR OF ENGINE BLOCK) EVAP CANISTER PUR SOL CTRL FUEL TANK PRESS SENS LOW REF PRIMARY FUEL LVL SENS SIG FUEL TANK PRESSURE SENSOR GENERATOR DUTY SIG GRY WIRE GRY/LT GRN WIRE GRY/RED WIRE INTAKE MANI FOLD CTRL (1) LT BLU/VIO WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/ BLK WIRE LT GRN/LT BLU WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE M/T M/T A/T MANIFOLD ABSOLT PRESS SENS SIG COOLANT TEMP SENS SIG MANIFOLD ABSOLUTE PRESSURE SENSOR (RIGHT FRONT OF ENGINE, IN INTAKE MANIFOLD) NOTCHBACK POS SIG RED/ GRY WIRE SENS SIG CLUTCH SENSOR SIGNAL BRK POS SENS SIG SENS SPLY CLUTCH VOLT REF STARTING/CHARGING SYSTEM TRANS OUTPUT SPD SENS SPLY TRANS SPEED SENS SIG TRANSMISSION SPD SENS LOW REF VAPOR PRESS SENS SPLY VOLT W/ EMISSION SYSTEM WHT WIRE WHT/BRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

"CHECK ENGINE" IND CTRL 1.8L VIN G 1.8L VIN H 5-VOLT REF 1 5-VOLT REF 2 A/C PRESS SENS 5 VOLT A/C RFGT PR SENS SIG ACC PEDAL POS SIG 1 ACC PEDAL POS SIG 2 AIR CONDITIONING AIR TEMP SENS LO REF AIR TEMP SENS SIG BATTERY POSITIVE VOLT BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMP CLUTCH RLY CTRL COOLING FAN RLY CTRL COOLING FANS SYSTEM CRUISE CONTROL CRUISE/ETC/TCC BRK SIG ECM 3 FUSE ECM 4 ECM 1 FUSE FUSE ECM 5 FUSE ECM FUSE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY EVAP CANSTR VENT CTRL FAN RLY CTRL FROM SECONDARY AIR INJECTION SOLENOID VALVE RELAY (DIAGRAM 4 OF 7) FSCM 1 FUSE GENERATOR TURN ON SIG GMLAN SER DATA - (1) GRY/LT BLU WIRE GRY/LT GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INJECTOR IG COIL FUSE ECM 2 FUSE LINES SYSTEM COMPUTER DATA LOW REF LT BLU WIRE LT BLU/BRN WIRE LT BLU/GRY WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/LT BLU WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE MAS AIR FLOW SENS SIG PARK/NEUTRAL SIG (1) PEDAL POS LO REF (1) PEDAL POSI LO REF (2) PMP RLY COIL CTRL POWERTRAIN RLY CTRL PRES SENS 5 VOLT REF PRESS SENS LOW REF PRESS SENS SIG PRIMARY RLY CTRL RED/BRN WIRE RED/LT BLU WIRE RED/WHT WIRE RUN/CRANK IGN 1 VOLT STARTING/CHARGING SYSTEM STR RLY COIL CTRL SYSTEM TEMP SENS 2 LO REF TEMP SENS 2 SIG TO COIL FUSE (DIAGRAM 4 OF 7) TRANSMISSIONS SYSTEM VIO WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE VIO/YEL WIRE WAKEUP SERIAL DATA WHT WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/LT BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/WHT WIRE

5 VOLT REF LOW REF BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT INTAKE 5 VOLT CAMSHAFT INTAKE LOW REF CAMSHAFT INTAKE SIG CAMSHAFT PHASER EXHAUST SOL 1 CAMSHAFT PHASER INTAKE SOL 1 CRANKSHAFT POSITION SENS SIG CAMSHAFT EXHAUST SIG ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT THERMOSTAT HEATER (LEFT REAR OF ENGINE) ENGINE OIL PRESSURE SWITCH (LOWER LEFT FRONT OF ENGINE) GROUND GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE IGN CTRL (2) IGN CTRL (4) KNOCK SENSOR SIG 1 LOW REF LOW REF CAMSHAFT EXHAUST LOW REF LOW REF CRANKSHAFT POSITION SENS VOLT CAMSHAFT EXHAUST 5 VOLT LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE POWERTRAIN MAIN RLY FUSE SPLY 1 LOW REF LOW REF OIL PRESSURE SW SIG THROTTLE BODY ASSEMBLY (RIGHT FRONT OF ENGINE, ON INTAKE MANIFOLD) THROTTLE POSITION SENSOR SIG 1 THROTTLE POSITION SENSOR SIG 2 VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE YEL WIRE YEL/BRN WIRE YEL/LT BLU WIRE YEL/VIO WIRE YEL/WHT WIRE