GMC Terrain II (2017-2021) (under right headlamp assembly) Wiring diagrams

BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU/PPL WIRE BRN/PPL WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR FUSE 6 GRN WIRE GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE (TOP CENTER OF DASH) HVAC CONTROLS HVAC FUSE INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA MIR/DEFOG FUSE PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER RLY CTRL REAR DEFOGGER SWITCH RED WIRE RED/GRN WIRE RR/WDO/DEFOG FUSE UNDERHOOD FUSE BLOCK

2.0L TURBO, 1.5L TURBO 1.6L ACT CTRL ACTR LOCK CTRL ACTR UNLCK CTRL ACTUATOR BATT POS VOLT BCM 8 FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE BRN/PPL WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CTRL DR LOCK CTRL DRIVER DOOR LOCK SWITCH DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD OPEN SW SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LH HDLP LO BEAM CTRL LOCK SIG LOGIC NCA WIRE PASS DOOR LOCK SW LOCK CTRL PASS DOOR LOCK SW UNLOCK CTRL PASSENGER DOOR LOCK SWITCH PPL PPL/GRN WIRE RCV SIG RECEIVE SIG RED/BRN WIRE REMOTE CONTROL DOOR LOCK RECEIVER RH HDLP LO BEAM CTRL SEC IND CTRL SECURITY IND SERIAL DATA (+) (3) TRANS SIG UNDERHOOD FUSE BLOCK UNLCK SIG VAR/ FUNC FUSE WHT WIRE WHT/PPL WIRE YEL WIRE YEL/GRN WIRE YEL/PPL WIRE

2.0L TURBO, 1.5L TURBO 1.6L AMBIENT LIGHT/ SUNLOAD SENSOR BCM 8 FUSE BLK WIRE BLK/GRN WIRE BLU/BLK WIRE BLU/PPL WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/YEL WIRE BUS 3 COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY ENGINE CONTROL MODULE ENGINE HOOD SWITCH GRN WIRE GRN/YEL WIRE GRY WIRE HOOD OPEN SW SIG HOT AT ALL TIMES HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LF DR AJAR LOGIC DRIVER WINDOW MOTOR MODULE LOGIC DRIVER WINDOW SWITCH LOW REF NCA WIRE NETWORK NETWORK BUS 3 PPL RED/BRN WIRE RED/WHT WIRE SERIAL DATA (+) (3) STATUS SIG SW SIG UNLOCK SIG WHT WIRE WHT/GRN WIRE WHT/PPL WIRE WHT/YEL WIRE YEL WIRE

ACTIVE GRILLE AIR SHUTTER ACTUATOR 1 AMBIENT LIGHT/ SUNLOAD SENSOR BATTERY SAVER RELAY 1 BLK WIRE BRN WIRE COLLISION ALERT INDICATORS DATA LINK CONNECTOR DIODES ENGINE HOOD SWITCH GMC HEADLAMP SWITCH HORN SWITCH HVAC CONTROL MODULE IGNITION MAIN RELAY IGNITION MODE SWITCH LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP BALLAST LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP COOLING FAN LEFT HEADLAMP LEVELING ACTUATOR LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP LEFT STEERING WHEEL CONTROLS SWITCH LIFTGATE UNLATCH RELAY MOBILE DEVICE WIRELESS CHARGER MODULE NCA WIRE RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH REAR DEFOGGER RELAY REAR WINDOW WASHER PUMP REAR WINDOW WASHER PUMP RELAY REAR WIPER RELAY RETAINED ACCESSORY POWER RELAY RIGHT STEERING WHEEL CONTROLS SWITCH SERIAL DATA GATEWAY MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER STEERING WHEEL HEATING CONTROL MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ ONSTAR W/O START STOP SYSTEM WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY

BLK WIRE BRN/PPL WIRE BRN/WHT WIRE CHEVROLET/ GMC GMC GRY/BRN WIRE LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT PARK/DAYTIME RUNNING LAMP NCA WIRE PPL/GRY WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE RIGHT PARK DAYTIME RUNNING LAMP WHT/BRN WIRE YEL WIRE YEL/GRY WIRE

BATTERY FUSE BLOCK BLK WIRE BRN/PPL WIRE BRN/WHT WIRE DRL FUSE DRL/LT FUSE FOG/LMP/FRT FUSE FRONT FOG LAMP RELAY FUSE 6 GMC GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP RELAY HI/BEAM/ LT FUSE HI/BEAM/ RT FUSE HOT AT ALL TIMES LEFT FRONT FOG LAMP LEFT HEADLAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP ASSEMBLY (W/LED) LEFT HEADLAMP BALLAST LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP COOLING FAN LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP NCA WIRE PPL/GRY WIRE RED WIRE RIGHT FRONT FOG LAMP UNDERHOOD FUSE BLOCK W/ HID W/ HID W/LED WHT WIRE WHT/BRN WIRE YEL WIRE YEL/GRY WIRE

ABS FUSE 22 ABS FUSE 27 APPLY SW SIG APPLY SW VOL REF BLK WIRE BLU/BLK WIRE BLU/PPL WIRE BRN WIRE COMPUTER DATA LINES SYSTAM COMPUTER DATA LINES SYSTEM DATA COM ELECTRONIC BRAKE CONTROL MODULE FRONT FOG LAMP IND GMC GROUND GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE HIGH BEAM IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LO SPD GMLAN SER DATA 2 LOGIC NCA WIRE PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PARK LIGHTS IND PPL/GRN WIRE REAR FOG LAMP IND RED/VIO WIRE RED/WHT WIRE RELEASE SW SIG RELEASE SW VOL REF RIGHT HEADLAMP RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP BALLAST RIGHT HEADLAMP CONTROL MODULE RIGHT HEADLAMP COOLING FAN RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW HEADLAMP RIGHT PARK DAYTIME RUNNING LAMP SIG SPLY VOL UNDERHOOD FUSE BLOCK VAR/ FUNC FUSE W/ HID W/ HID W/ LED W/ LED WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

2.0L TURBO, 1.5L TURBO 1.6L BATT POSITIVE VOLT BCM 1 FUSE BLK WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 11 DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRN/PPL WIRE GRY/BLK WIRE GRY/GRN WIRE HOOD OPEN HOOD STATUS B SIG HOT AT ALL TIMES IMMOBILIZER CONTROL MODULE (UNDER CENTER CONSOLE) IMMOBILIZER CTRL IMMOBILIZER LOW REF INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOCAL INTERCONNECT LOCAL INTERCONNECT NETWORK SER DATA BUS 11 LOGIC NCA WIRE NETWORK SER RED/GRY WIRE SW SIG WHT WIRE YEL WIRE

2.0L TURBO, 1.5L TURBO 1.6L ACT CTRL ACTR LOCK CTRL ACTR UNLCK CTRL ACTUATOR BATT POS VOLT BCM 8 FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE BRN/PPL WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CTRL DR LOCK CTRL DRIVER DOOR LOCK SWITCH DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD OPEN SW SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LH HDLP LO BEAM CTRL LOCK SIG LOGIC NCA WIRE PASS DOOR LOCK SW LOCK CTRL PASS DOOR LOCK SW UNLOCK CTRL PASSENGER DOOR LOCK SWITCH PPL PPL/GRN WIRE RCV SIG RECEIVE SIG RED/BRN WIRE REMOTE CONTROL DOOR LOCK RECEIVER RH HDLP LO BEAM CTRL SEC IND CTRL SECURITY IND SERIAL DATA (+) (3) TRANS SIG UNDERHOOD FUSE BLOCK UNLCK SIG VAR/ FUNC FUSE WHT WIRE WHT/PPL WIRE YEL WIRE YEL/GRN WIRE YEL/PPL WIRE

2.0L TURBO, 1.5L TURBO 1.6L AMBIENT LIGHT/ SUNLOAD SENSOR BCM 8 FUSE BLK WIRE BLK/GRN WIRE BLU/BLK WIRE BLU/PPL WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/YEL WIRE BUS 3 COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY ENGINE CONTROL MODULE ENGINE HOOD SWITCH GRN WIRE GRN/YEL WIRE GRY WIRE HOOD OPEN SW SIG HOT AT ALL TIMES HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LF DR AJAR LOGIC DRIVER WINDOW MOTOR MODULE LOGIC DRIVER WINDOW SWITCH LOW REF NCA WIRE NETWORK NETWORK BUS 3 PPL RED/BRN WIRE RED/WHT WIRE SERIAL DATA (+) (3) STATUS SIG SW SIG UNLOCK SIG WHT WIRE WHT/GRN WIRE WHT/PPL WIRE WHT/YEL WIRE YEL WIRE