GMC Acadia II facelift (2019-2024) engine controls system Wiring diagrams

2.5L 3.6L ABS IND. BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE BOOSTER VACUUM SENSOR BRAKE IND BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE POSITION SENS LOW REF BRAKE POSITION SENS SIG BRAKE VACUUM SENS SIG COMPUTER DATA LINES SYSTEM DESCENT CTRL SW SIG DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ESC IND ESC OFF IND GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (-) (1) HILL DESCENT CONTROL SWITCH HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR WHEEL SPEED SENSOR LOGIC NCA WIRE RED/GRY WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT PARK BRAKE ACTUATOR RIGHT REAR WHEEL SPEED SENSOR SERIAL DATA (-) (1) SIG GND TRACTION CTRL SW SIG 1 VIO WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

2.5L 3.6L ABS IND. BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE BOOSTER VACUUM SENSOR BRAKE IND BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE POSITION SENS LOW REF BRAKE POSITION SENS SIG BRAKE VACUUM SENS SIG COMPUTER DATA LINES SYSTEM DESCENT CTRL SW SIG DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ESC IND ESC OFF IND GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (-) (1) HILL DESCENT CONTROL SWITCH HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR WHEEL SPEED SENSOR LOGIC NCA WIRE RED/GRY WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT PARK BRAKE ACTUATOR RIGHT REAR WHEEL SPEED SENSOR SERIAL DATA (-) (1) SIG GND TRACTION CTRL SW SIG 1 VIO WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/VIO 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 TURBO 2.5L 3.6L 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 BRN/GRY WIRE CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM COOLANT TEMP SIG CTRL CLOSE CTRL OPEN ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE ENGINE COOLANT TEMPERATURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 GRN/YEL 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/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

"CHECK ENGINE" IND CTRL 2.5L 2.0L TURBO 3.6L ABS IND. ADAPTIVE CRUISE IND ADAPTIVE FRONT LIGHTING (AFL) IND AIR BAG IND AJAR SW SIG ASSIST IND BATT POST VOLT BLK WIRE BRAKE FLUID LEVEL SWITCH BRAKE IND BRAKE WARNING IND BRN/BLU WIRE BRN/WHT WIRE CHARGING IND COMPUTER DATA LINES SYSTEM CONTROL IND CRUISE IND DISPLAY DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL ENGINE OIL LEVEL GAUGE ESC IND ESC OFF IND FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE GND LINEAR INTERCONNECT NETWORK BUS 12 GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HIGH BEAM LAMP IND HILL DECENT HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ILLUMINATION INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE DEPARTURE LANE KEEPING LED DISPLAY DIMMING CTRL LEFT TURN SIG IND LIGHT ON IND LIN BUS 3 LIN SER BUS 4 LIN SER DATA LOGIC LOW FUEL IND LOW SPD GMLAN SER DATA 2 LOW WASHER FLUID IND CTRL MALFUNCTION IND MOST SERIAL DATA (+) NAVIGATION SYSTEM OFF IND PARK BRAKE IND PARK LAMP IND PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH POWER STEERING PRESSURE IND REAR FOG LAMP IND RED/GRY WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RIGHT TURN SIG IND RUN/CRANK IGN 1 VOLT SEAT BELT 2 IND SEAT BELT IND SECURITY IND SERVICE PARK SPEEDOMETER TACHOMETER TIRE PRESSURE IND TRACTION CONTROL UNDERHOOD FUSE BLOCK VEHICLE AHEAD IND VIO WIRE VIO/GRY WIRE WARNING IND WARNING LIGHT IND WHT/BLU WIRE WHT/GRN WIRE WIPER/WASHER SYSTEM

2.0L TURBO 2.5L 2.5L 3.6L AJAR SW SIG AJAR SW SIG 2 AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRAKE MASTER CYLINDER (LEFT REAR OF ENGINE COMPT) BRAKE SYSTEM CONTROL MODULE BRK FLUID LEVEL SW SIG BRN WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR FUEL LEVEL SENSOR ASSEMBLY FUEL PUMP CONTROL MODULE FUEL PUMP, LEVEL SENSOR ASSEMBLY GRN WIRE GRN/GRY WIRE GRY WIRE GRY/RED WIRE HI SPD GMLAN SER DATA BUS (+) 3 HI SPD GMLAN SER DATA BUS (-) 2 J132 (2.5L, 3.6L) J155 (2.0L TURBO) LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LIFTGATE AJAR SW SIG 1 LIFTGATE CONTROL MODULE (W/ POWER LIFTGATE) (IN LIFTGATE) LIFTGATE LATCH LIFTGATE LATCH ASSEMBLY LIN SER DATA BUS 4 LOGIC LOW REF NCA WIRE OIL LEVEL SW SIG OIL PRESS SENS SIG PARK BRAKE SWITCH (LEFT OF STEERING WHEEL) PARK BRK APPLY SW SIG PARK BRK APPLY VOLT REF PARK BRK REL SW SIG PARK BRK REL SW VOLT REF PARK BRK SW SPLY VOLT PRESS SENS LOW REF PRIMARY FUEL LEVEL SENSOR PRK BRK SW SIG SECONDARY FUEL LEVEL SENSOR SENS LOW REF SENS SIG SENS SIG 2 SERIAL DATA SIG GND TEMP SENS SIG TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/GRY WIRE W/O POWER LIFTGATE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE