GMC Acadia II facelift (2019-2024) engine control module Wiring diagrams

2.5L 3.6L 5-VOLT REF 1 ACCESSORY WAKE UP SERIAL DATA BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN/VIO WIRE CITY MODE IND CTRL COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DISPLAY LOGIC DRIVE MODE SELECT SWITCH DRIVER MODE SWITCH SIG DRV MODE 1 IND CTRL DRV MODE 2 IND CTRL DRV MODE 4 IND CTRL DRV MODE 5 IND CTRL ENGINE CONTROL MODULE GMLAN SERIAL DATA - 1 GROUND 16 GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HIGH SPEED GMLAN SERIAL DATA (+) 3 HIGH SPEED GMLAN SERIAL DATA (+) 7 HIGH SPEED GMLAN SERIAL DATA (-) 7 SECONDARY FUSED BATTERY POSITIVE VOLT 18 HOT AT ALL TIMES ILL IND DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT TRANSMISSION MANUAL SHIFT SWITCH LO SPD GMLAN SERIAL DATA LOGIC MODE OFF ROAD RED/GRN WIRE RIGHT TRANSMISSION MANUAL SHIFT SWITCH RUN/CRANK IGNITION 1 VOLTAGE 1 SEL CATALYTIC RED PWR MDL WAKE-UP SIG WIRE SNOW SPORT STEERING WHEEL AIR BAG COIL SYSTEM TAP UP/TAP DOWN SW SIG TOW/ HAUL TRANSMISSION RANGE SELECTOR CONTROLS TRANSMISSION SHIFT LEVER KNOB TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/BRN WIRE

2.5L 3.6L 5-VOLT REF 1 ACCESSORY WAKE UP SERIAL DATA BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN/VIO WIRE CITY MODE IND CTRL COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DISPLAY LOGIC DRIVE MODE SELECT SWITCH DRIVER MODE SWITCH SIG DRV MODE 1 IND CTRL DRV MODE 2 IND CTRL DRV MODE 4 IND CTRL DRV MODE 5 IND CTRL ENGINE CONTROL MODULE GMLAN SERIAL DATA - 1 GROUND 16 GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HIGH SPEED GMLAN SERIAL DATA (+) 3 HIGH SPEED GMLAN SERIAL DATA (+) 7 HIGH SPEED GMLAN SERIAL DATA (-) 7 SECONDARY FUSED BATTERY POSITIVE VOLT 18 HOT AT ALL TIMES ILL IND DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT TRANSMISSION MANUAL SHIFT SWITCH LO SPD GMLAN SERIAL DATA LOGIC MODE OFF ROAD RED/GRN WIRE RIGHT TRANSMISSION MANUAL SHIFT SWITCH RUN/CRANK IGNITION 1 VOLTAGE 1 SEL CATALYTIC RED PWR MDL WAKE-UP SIG WIRE SNOW SPORT STEERING WHEEL AIR BAG COIL SYSTEM TAP UP/TAP DOWN SW SIG TOW/ HAUL TRANSMISSION RANGE SELECTOR CONTROLS TRANSMISSION SHIFT LEVER KNOB TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/BRN WIRE

2.0L TURBO 2.5L 3.6L A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR BATT POS VOLT BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BRN/GRY WIRE BRN/RED WIRE CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM COOLANT TEMP SIG COOLENT PUMP RLY CTRL CLOSE CTRL OPEN ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE (2.0L TURBO) (ABOVE STARTER MOTOR) ENGINE COOLANT TEMPERATURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/VIO WIRE HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES INLET TEMP SIG LOGIC OUTLET TEMP SIG RADIATOR COOLANT TEMPERATURE SENSOR RED/WHT WIRE SENS 5 VOLT REF 1 SENS LOW REF (2) SENS LOW REF 1 SIG GND SIG GND SENS LOW REF TEMP SENS 2 SIG TEMP SENS SIG UNDERHOOD FUSE BLOCK VALVE POSITION SIG VIO WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

2.0L 2.5L 3.6L AWD IND AWD IND CTRL BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CITY MODE IND CONT COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER DISPLAY DRIVER MODE 1 IND CTRL DRIVER MODE 2 IND CTRL DRIVER MODE 4 IND CTRL DRIVER MODE SW SIG ENGINE CONTROL MODULE ENGINE CTRL SENS 5 VOLT REF 1 FWD IND GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT VERTICAL SUSPENSION ACCELERATION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LF SK ABS ACTR CTRL LF VERT SUSP ACC SENS SIG LF VERT SUSP ACC SENS VOL REF LOGIC LOW SPD GMLAN SERIAL DATA 2 LR SK ABS ACTR CTRL MODE SWITCH NCA WIRE OFF-ROAD IND REAR BODY FUSE BLOCK REAR DIFFERENTIAL CLUTCH CONTROL MODULE RED/GRY WIRE RED/WHT WIRE RF SK ABS ACTR CTRL RF VER SUSP ACC SENS LOW REF RF VERT SUSP ACC SENS SIG RF VT SUS ACC SENS LOW REF RF VT SUS ACC SENS VOL REF RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT VERTICAL SUSPENSION ACCELERATION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR SK ABS ACTR CTRL SERIAL DATA COMM ENABLE SNOW IND SPORT IND STOP/START IND CONT SUSPENSION CONTROL MODULE TOW/HAUL IND VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE

2.0L TURBO 2.5L 2.5L 3.6L 2.5L 3.6L 2.0L TURBO 3.6L A/C COMPRESSOR AUXILIARY HEATER COOLANT PUMP BATTERY BATTERY SENSOR MODULE BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH COOLING FAN MOTOR DIODE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE OIL LEVEL SWITCH EVAPORATIVE EMISSION PURGE PUMP EXCEPT 2.0L TURBO FRONT FOG LAMP RELAY IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 IGNITION MAIN RELAY MAIN ENGINE COOLANT FLOW CONTROL VALVE MULTI-FUNCTION INTAKE AIR SENSOR NCA WIRE POWER STEERING CONTROL MODULE REAR WINDOW WASHER PUMP RELAY REAR WIPER IGNITION RELAY REAR WIPER RELAY STARTER PINION SOLENOID ACTUATOR RELAY STARTER RELAY W/ START/STOP SYSTEM WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP RELAY

2.0L TURBO 2.5L 3.6L ACC WAKEUP SERIAL DATA AMBIENT LIGHT/ SUNLOAD SENSOR B+ VOLT BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE HOOD SWITCH GRN/GRY WIRE GRN/PPL WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOOD OPEN SW SIG HOOD STATUS B SIGNAL HOT AT ALL TIMES HVAC CONTROL MODULE IMMOBILIZER CONTROL MODULE (REAR OF FLOOR CONSOLE) IMMOBILIZER CTRL IMMOBILIZER LIN BUS 1 IMMOBILIZER LOW REF INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 9 LOGIC LOW SPD GMLAN SERIAL DATA 2 RED/VIO WIRE SECURITY INDICATOR SECURITY INDICATOR CTRL SERIAL DATA COMM ENABLE SIG GND SOLAR SENSOR LOW REF VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

2.0L TURBO 2.5L 3.6L ACC IGN VOLT ACC WAKEUP SERIAL DATA ACTR CTRL ACTR LO REF ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/ SUNLOAD SENSOR B+ VOLT BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN/GRN WIRE BRN/PPL WIRE BRN/WHT WIRE BRN/YEL WIRE CHALLENGE ACTIVE SIG COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 9 DR LCK ACTR LCK CTRL DR LCK ACTR LCK CTRL 2 DR LCK ACTR UNLCK CTRL DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG ENGINE CONTROL MODULE ENGINE HOOD SWITCH FUEL DR LCK RLY CTRL GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (-) (1) HOOD STATUS A SIGNAL HOOD STATUS B SIGNAL HORN RLY CTRL HORNS SYSTEM HVAC CONTROL MODULE LH HEADLAMP LO BEAM CTRL LIN SERIAL LO REF LOGIC PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER WINDOW SWITCH PPL/YEL WIRE RED/PPL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE CONTROL DOOR LOCK RECEIVER CONTROL REMOTE CONTROL DOOR LOCK RECEIVER LOW REFERENCE SIG GND REMOTE CONTROL DOOR LOCK RECEIVER RECEIVE SIGNAL REMOTE FUNCTION ACTR TRANSMIT SIG RF DR AJAR RH HEADLAMP LO BEAM CTRL RUN/CRANK IGN 1 VOLT SEC IND CTRL SERIAL DATA COMM ENABLE SIG SOLAR SENSOR SW SIG VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/PPL WIRE

2.0L TURBO 2.5L 3.6L AM/FM AUXILIARY AUDIO INPUT LOGIC BACKUP LAMP CTRL BATT POST VOLT 32 BATTERY POS VOLT 3 BK COAX BLK WIRE BLK/WHT WIRE BN USB COAX COAX CU COMPUTER DATA LINES SYSTEM CRNKSHAFT CRNKSHAFT POSI SENS REPLICATED SIGNAL DISPLAY ENGINE CONTROL MODULE ETHERNET BUS 4 (-) GND 15 GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE GY LVDS HOT AT ALL TIMES INFO DISPLAY MODULE INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SER DATA 2 LOGIC LR SPKR SIG (-) CTRL LVDS NCA WIRE OG COAX POSI SENS RADIO RADIO CONTROLS REAR VIEW CAMERA RED/BLU WIRE RED/VIO WIRE REPLICATED ROOF REAR ANTENNA SIGNAL USB VIO/BLU WIRE W/O DIGITAL AUDIO SYSTEM W/O ONSTAR

1-YE 2-YE 2.5L 3.6L AM/FM BACKUP LAMP CTRL BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/BLU WIRE COAX COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/GRN WIRE HD/XM HI SPD GMLAN SER DATA (-) 9 LF SPEAKER (-) CTRL 1 LF SPEAKER 1 (+) CTRL LO SPD GMLAN SER DATA 2 LR SPEAKER (+) CTRL RADIO REAR VIEW CAMERA REPLICATED RF SPEAKER (-) CTRL 1 RF SPEAKER 1 (+) CTRL RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT REAR DOOR SPEAKER RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE ROOF REAR ANTENNA RR SPEAKER (+) CTRL SER DATA COMM ENABLE SIGNAL USB VIO/BLU WIRE W/ DIGITAL AUDIO SYSTEM W/O DIGITAL AUDIO SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

1-YE 2-YE 2.5L 3.6L AM/FM BACKUP LAMP CTRL BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/BLK WIRE COAX COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HD/XM HI SPD GMLAN SER DATA (-) 9 LO SPD GMLAN SER DATA 2 RADIO REAR VIEW CAMERA REPLICATED RIGHT FRONT DOOR SPEAKER RIGHT FRONT INSTRUMENT PANEL SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE ROOF REAR ANTENNA SER DATA COMM ENABLE SIGNAL USB VIO/BLU WIRE W/ DIGITAL AUDIO SYSTEM W/O DIGITAL AUDIO SYSTEM WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE