GMC Terrain II (2017-2021) (left of steering column) Wiring diagrams

1.5L TURBO, 2.0L TURBO 1.6L TURBO DIESEL GMC CHEVROLET AUTOMATIC TRANSMISSION ASSEMBLY BACKUP BACKUP LP CTRL BATT POS VOLT BCM 7 FUSE BLK WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/PPL WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT BACKUP LAMP LEFT LIFTGATE TAILLAMP ASSEMBLY LIN SER DATA BUS 2 LOGIC LOGIC INSIDE REAR VIEW MIRROR LP CTRL NCA WIRE RADIO RAP RLY COIL CTRL RED WIRE RED/BRN WIRE RED/GRY WIRE REVERSE IND RIGHT BACKUP LAMP RIGHT LIFTGATE TAILLAMP ASSEMBLY TRANS PARK/ NEUTRAL SIG 1 TRANS POS SW BIT 2 SIG TRANS POS SW BIT 3 SIG TRANS POS SW PARITY BIT SIG TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER POSITION INDICATOR WHT WIRE WHT/GRY WIRE YEL WIRE

BATT POS VOLT BCM 8 FUSE BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) COMPUTER DATA LINES SYSTEM DISPLAY INFORMATION CENTER DISPLAY GRN WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LG LATCH FUSE LIFT GLASS/REAR COMPARTMENT LID LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH LIFTGATE UNLATCH RELAY LIFTGATE UNLATCH SWITCH LOGIC LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 PPL/GRY WIRE REAR CLOSURE HANDLE SW OPEN SIG RED/BLU WIRE RED/BRN WIRE YEL/BLU WIRE

2.0L TURBO 1.5L TURBO 1.6L TURBO DIESEL 6 SPEED 9 SPEED ACCY WAKEUP SER DATA AMBIENT LIGHT/ SUNLOAD SENSOR BATT POS VOLT BCM 1 FUSE BCM 4 FUSE BCM 6 FUSE BCM 8 FUSE BLK WIRE BLU/BLK WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY AUTOMATIC TRANSMISSION ASSEMBLY DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT MEMORY CONTROL MODULE E SHIFT FUSE ENGINE CONTROL MODULE ESCL FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 9) FUSE 26 GRY/BRN WIRE HI SPD GMLAN SER DATA (+) 3 HVAC CONTROL MODULE HVAC FUSE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LEFT REAR WINDOW SWITCH OCC SENS FUSE PASSENGER PRESENCE MODULE PEPS FUSE POWER SUPPLY TRANSFORMER (W/ START-STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE PPL/YEL WIRE PWR SEAT FUSE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR WINDOW SWITCH RR WDO FUSE RUN/CRANK IGN 1 VOLT SDM FUSE STARTER ENABLE RLY CTRL STARTER RELAY TCM FUSE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 4 OF 9) TO RETAINED ACCESSORY POWER RELAY (DIAGRAM 9 OF 9) TRANSMISSION CONTROL MODULE TRANSMISSION RANGE SELECTOR CONTROLS UNDERHOOD FUSE BLOCK W/ MEMORY W/ START STOP SYSTEM W/O START STOP SYSTEM W/ START/ STOP SYSTEM W/O MEMORY WHT WIRE YEL/PPL WIRE

AUXILIARY AUDIO INPUT BATTERY SAVER RELAY 1 BLK WIRE BODY CONTROL MODULE CAM LGM VPM FUSE CHEVROLET/ GMC DSP HMI FUSE FROM BODY CONTROL MODULE (DIAGRAM 3 OF 9) FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 9) FRONT OVERHEAD CONSOLE ASSEMBLY GARAGE DOOR OPENER GRY/BRN WIRE GRY/PPL WIRE HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HVAC CONTROLS INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK IPC USB FUSE LIFTGATE CONTROL MODULE ONSTAR FUSE PARKING ASSIST CONTROL MODULE PPL/BLU WIRE RADIO RDO FUSE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB RECEPTACLE W/ START STOP SYSTEM W/O START STOP SYSTEM W/O START STOP SYSTEM WINDSHIELD FRONT VIEW CAMERA

APO CIRCUIT BREAKER BLK WIRE BODY CONTROL MODULE CENTER CONSOLE REAR ACCESSORY POWER RECEPTACLE CENTER CONSOLE REAR USB RECEPTACLE CHG IND CTRL CIGARETTE LIGHTER RECEPTACLE CIGLTR FUSE DRIVER SEAT HEATING SWITCH FROM OCC SENS FUSE (DIAGRAM 3 OF 9) FRT HT SW FUSE GMC GRN WIRE GRY/GRN WIRE INSTRUMENT PANEL ACCESSORY POWER RECEPTACLE INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LG LATCH FUSE LIFTGATE UNLATCH RELAY LOGIC MOBILE DEVICE WIRELESS CHARGER MODULE PASSENGER SEAT HEATING SWITCH PPL PWR FSD CTRL RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RETAINED ACCESSORY POWER RELAY RIGHT STEERING WHEEL CONTROLS SWITCH SHFT CHRG FUSE STEERING WHEEL AIR BAG COIL SWC FUSE VOLT W/ SMOKERS PACKAGE ACCESSORY W/O SMOKERS PACKAGE ACCESSORY

5 VOLT REF AJAR SW SIG 1 AJAR SW SIG 2 AJAR SW SIG 3 BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/PPL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAM LGM VPM FUSE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/PPL WIRE GRY/WHT WIRE HANDLE SW OPEN SIG HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK L/GATE FUSE LEFT LIFTGATE OBJECT SENSOR LIFTGATE CLOSE SWITCH LIFTGATE CONTROL MODULE (BEHIND LEFT REAR TRIM PANEL) LIFTGATE UNLATCH SWITCH LIN SERIAL DATA BUS 18 LOGIC LOW REF LOW SPD GMLAN SERIAL DATA 2 MTR CLOSE CTRL MTR OPEN CTRL MTR RELEASE CTRL 2 OBJECT SENSOR SIG ON/OFF SW SIG OPEN/CLOSE SW SIG POSITION SENS SIG 1 POSITION SENS SIG 2 REAR BODY FUSE BLOCK REAR CLOSURE OPEN RED/GRN WIRE RED/GRY WIRE RIGHT LIFTGATE OBJECT SENSOR SHUT FACE SW LED CTRL SHUT FACE SW SIG WHT WIRE WHT/BLK WIRE YEL/BLU WIRE

AIR BAG IND AUTOMATIC LOCKING RETRACTOR SW LOW REF AUTOMATIC LOCKING RETRACTOR SW SIG BATT POSITIVE VOLT BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE COMPUTER DATA COMPUTER DATA LINES SYSTEM DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMLAN GRN WIRE GRY/GRN WIRE GRY/ORG WIRE HI SPEED GMLAN SERIAL DATA (+) (2) HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER CONSOLE) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LINES SYSTEM LO SPD LO SPD GMLAN SERIAL DATA LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE OCC SENS FUSE ORG/BRN WIRE ORG/GRN WIRE ORG/PPL WIRE ORG/WHT WIRE PASS AIR BAG OFF INDICATOR CTRL PASS AIR BAG ON INDICATOR CTRL PASS IP MOD STAGE 1 HI CTRL PASS IP MOD STAGE 1 LO CTRL PASS IP MOD STAGE 2 HI CTRL PASS IP MOD STAGE 2 LO CTRL PASS SEAT BELT INDICATOR CTRL PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE MODULE PASSENGER SEAT BELT TENSION SENSOR PNK WIRE RED/BRN WIRE RED/GRN WIRE SDM FUSE SEAT BELT IND SERIAL SERIAL DATA COMMUNICATION ENABLE SHORTING BAR SIG GND SIG GROUND STEERING WHEEL AIR BAG (IN STEERING WHEEL) STEERING WHEEL AIR BAG COIL STEERING WHEEL MOD STAGE 1 HI CTRL STEERING WHEEL MOD STAGE 1 LO CTRL STEERING WHEEL MOD STAGE 2 HI CTRL STEERING WHEEL MOD STAGE 2 LO CTRL TAN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/ORG WIRE YEL/ORG WIRE

BACKUP RLY CTRL BATT POS VOLT BCM 3 FUSE BLK WIRE BLU WIRE BLU/BRN WIRE BLU/PPL WIRE BLU/WHT WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS CIRCUIT FUSE 1 GRN/PPL WIRE GRY/BRN WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LD TRAILR FUSE LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LH RR TURN SIG LP CTRL RH RR TURN SIG LP CTRL LT TRLR TRN/ SIG FUSE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY RT TRLR TRN/ SIG FUSE TRAILER BACKUP LAMPS RELAY TRAILER BRK APPLY SIG TRAILER CONNECTOR (W/ TRAILER BRAKE PROVISIONS) (UNDER CENTER REAR OF VEHICLE) TRAILER CONNECTOR (W/O TRAILER BRAKE PROVISIONS) (UNDER CENTER REAR OF VEHICLE) TRLR AUX PWR FUSE TRLR BCK/UP FUSE TRLR BRK FUSE UNDERHOOD FUSE BLOCK W/ TRAILER BRAKE PROVISIONS W/O TRAILER BRAKE PROVISIONS WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/GRY WIRE

B+ VOLT BATT POS VOLT BCM 4 FUSE BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DATA BUS 1 DRIVER INFORMATION CENTER DISPLAY FRT WPR FUSE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IND CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC MTR PARK SW SIG N/W SER N/W SER BUS 12 PPL RAIN/AMBIENT LIGHT SENSOR MODULE REAR WIPER SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/PPL WIRE RLY COIL CTRL RLY CTRL SW HIGH SIG UNDERHOOD FUSE BLOCK WASHER SW SIG WHT WIRE WHT/BLK WIRE WHT/PPL WIRE WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WIPER SW HIGH SIG WIPER SW LO SIG WIPER SW LOW REF YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

BLK WIRE BLK/GRY WIRE BLU WIRE BLU/PPL WIRE BRN/BLU WIRE BRN/GRY WIRE DELAY SWITCH GRN/WHT WIRE GRY WIRE GRY/PPL WIRE HI LO HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK MIST OFF INT OSRVM FUSE PPL REAR WINDOW WASHER PUMP REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WIPER RELAY REAR WIPER/WASHER SWITCH RED/BRN WIRE RR/WPR FUSE UNDERHOOD FUSE BLOCK WASH/PUMP FUSE WASHER SWITCH WHT/BLK WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER SWITCH WINDSHIELD WIPER/WASHER SWITCH YEL WIRE YEL/BLU WIRE