GMC Terrain II (2017-2021) (w/ electronic transmission range selector system) Wiring diagrams

ABS FUSE 22 BATT POSITIVE VOLT BATTERY POSITIVE VOLT BCM 4 FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/PPL WIRE BODY CONTROL MODULE BRAKE FLUID LEVEL SENS SIG BRN WIRE BRN/PPL WIRE BRN/WHT WIRE BUS 2 COIL CTRL COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH DRIVER MODE 1 IND CTRL DRIVER MODE 2 IND CTRL DRIVER MODE 4 IND CTRL DRIVER MODE 5 IND CTRL ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/PPL WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA (-) 1 LOGIC MODE MODE 1 IND MODE 2 IND MODE 4 IND MODE 5 IND NETWORK NETWORK BUS 3 PARK BRAKE APPLY SW SIG PARK BRAKE APPLY SW VOLT REF PARK BRAKE REL SW SIG PARK BRAKE REL SW VOLT REF PARK BRAKE SW SIG PARK BRAKE SW SPLY VOLT PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH PPL/YEL WIRE PRESS BRAKE RAP RLY RAP RLY COIL CTRL RED/BLU WIRE RED/PPL WIRE TOW/ HAUL TRANSMISSION SHIFT LEVER POSITION INDICATOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

12 VOLT REF ALERT LED CTRL BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN WIRE CAM LGM VPM FUSE CHEVROLET COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DIMMING CTRL DRIVE MODE SELECT SWITCH DRIVER LEFT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER SEAT MEMORY CONTROL MODULE FORWARD COLLISION ALERT LED CTRL FORWARD COLLISION ALERT WARNING SWITCH FRONT VIEW WINDSHIELD CAMERA FUSE 3 GMC GRN WIRE GRN/WHT WIRE GROUND GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOCAL INTERCONNECT NETWORK BUS 8 LOGIC LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 LR HAPTIC SEAT MOTOR CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE REFLECTED LED DISPLAY DIMMING CTRL RR HAPTIC SEAT MOTOR CTRL SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VAR/FUNC FUSE W/ FORWARD COLLISION ALERT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BRN WIRE

2.0L TURBO 1.5L TURBO 1.6L TURBO DIESEL A/C COMPRESSOR CLUTCH RELAY A/C FUSE AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY COOLANT PUMP RELAY BLK WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS CONTROL SOLENOID VALVE ASSEMBLY ELECTRICAL AUXILIARY HEATER ENG/ COOL/PMP FUSE ENGINE CONTROL MODULE FROM AHL FUSE (DIAGRAM 1 OF 9) FRT/WPR FUSE FUEL HEATER FUSE FUEL HEATER RELAY FUEL PUMP DRIVER CONTROL MODULE GRN/PPL WIRE HVAC CONTROL MODULE IGNITION MAIN RELAY INSTRUMENT CLUSTER LD TRAILR FUSE NEC TERM FUSE PPL/GRN WIRE PPL/WHT WIRE REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WIPER RELAY RED/BRN WIRE RED/GRY WIRE RR/WPR FUSE TCM/ ECM FUSE TO ENGINE CONTROLS IGNITION RELAY (DIAGRAM 7 OF 9) TO HDLP/POS FUSE (DIAGRAM 7 OF 9) TO POWER SUPPLY TRANSFORMER (DIAGRAM 3 OF 9) TRANSMISSION CONTROL MODULE TRANSMISSION RANGE CONTROL MODULE TRANSMISSION RANGE SELECTOR CONTROLS TRCM FUSE VAR/FUNC FUSE W/O HEAD-UP DISPLAY WASH PUMP FUSE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY

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

"CHECK ENGINE" IND CTRL 5 VOLT REF A/C COMPRESSOR A/C PRESS SENS SIG AFTER BOIL HTR RLY CTRL AIR CONDITIONING SYSTEM AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR APP POS SIG 1 APP SIG (2) BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/PPL WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BRAKE PEDAL POSITION SENSOR BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FAN SPD SIG COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVE MODE SELECT SWITCH (ON FLOOR CONSOLE) DRV MODE SW SIG ECM FUSE ECM, TCM FUSE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUEL PUMP PRIMARY RLY CTRL SOL CTRL GMLAN SERIAL DATA (+) 7 GMLAN SERIAL DATA (-) 3 GMLAN SERIAL DATA - 1 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HIGH REF BANK 1 HOOD OPEN SW SIG HOT ALL ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HUMIDITY SENS SIG IGNITION 1 VOLT LOW REF LOW REF (1) LOW REF 2 MAF SENS SIG MAIN RELAY FUSED SPLY 1 MAIN RELAY FUSED SPLY 2 MODE PARK/NEUTRAL SIG (1) POWERTRAIN MAIN RLY PPL/BLU WIRE PPL/GRN WIRE PPL/YEL WIRE RED/WHT WIRE RELAY COIL CTRL SENS SIG STARTER ENABLE RELAY STARTER ENABLE RLY CTRL STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK WAKEUP SERIAL DATA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/PPL WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/PPL WIRE YEL/WHT WIRE

A/C COMPRESSOR CLUTCH RELAY AMBIENT AIR TEMPERATURE SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/GRN WIRE BLK/PPL WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE DRIVE MODE SELECT SWITCH DRIVE MODE SELECT SWITCH (ON FLOOR CONSOLE) ECM FUSE ECM/TCM FUSE ENGINE CONTROLS IGNITION RELAY FLEX FUEL FUSE FUSE 5 FUSE 6 GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN/ COIL/ EVEN FUSE IGN/ COIL/ ODD FUSE MODE NON/ WALK FUSE POWER DISTRIBUTION SYSTEM PPL/BLU WIRE PPL/GRN WIRE RED WIRE REDUCTANT INJECTOR TO FUEL HEATER RELAY (DIAGRAM 5 OF 9) TO REDUCTANT CONTROL MODULE RELAY 2 (DIAGRAM 5 OF 9) UNDERHOOD FUSE BLOCK WHT/BLU WIRE WHT/PPL WIRE YEL WIRE

ACTIVE GRILLE AIR SHUTTER ACTUATOR BLK WIRE BLK/GRN WIRE BLK/PPL WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH (ON FLOOR CONSOLE) ENGINE COOLANT TEMPERATURE SENSOR ENGINE OIL PRESSURE SENSOR GRN WIRE GRN/PPL WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 HIGH PRESSURE FUEL PUMP MODE MULTI-FUNCTION INTAKE AIR SENSOR NCA WIRE PPL/BLK WIRE PPL/BLU WIRE RLY CTRL SER DATA TURBOCHARGER BOOST/INTAKE AIR TEMPERATURE SENSOR WHT/BLU WIRE WHT/PPL WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE