GMC Terrain II facelift (2021-2024) red Wiring diagrams

BATT POS VOLT BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR GRN WIRE GRY WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (+) 5 HOT AT ALL TIMES LEFT SIDE OBJECT SENSOR MODULE LH SIDE OBJECT DETECTION LED CTRL LO SPD GMLAN SERIAL DATA PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR REAR BODY FUSE BLOCK RED WIRE RED/BRN WIRE RH SIDE OBJECT DETECTION LED CTRL RIGHT SIDE OBJECT SENSOR MODULE YEL WIRE

ABS/TCS HILL DESCENT CTRL SW SIG ACC IGN VOLT ACC IND AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ANTI-THEFT SYSTEM AUTOMATIC HI ON/OFF SW SIG BACKUP LAMP CTRL BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIMMER SW LO REF DIMMER SW SIG DIMMING IND DIST SEN CRU CTRL GAP UP/DOWN SW SIG HDLP SW FLASH SIG HORN SW SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER DR LOCK SW LOCK SIG TRAILER BRAKE APPLY SIG DRIVER DR LOCK SW UNLOCK SIG ENGINE START/ STOP SWITCH EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FRONT FOG LAMP SW SIG GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HAZARD LED DIMMING SIG HAZARD SW LEFT TURN SIG HAZARD SW SIG HDLP DIMMER SW HI BEAM SIG HDLP SW OFF SIG HDLP SW ON SIG HDLP SW PARK LAMPS SIG HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (+) 1 REMOTE FUNCTION ACTUATOR RECEIVE SIG HI SPD GMLAN SERIAL DATA (-) (1) HORNS SYSTEM HOT AT ALL TIMES IGN MODE SW ACC LED SIG IGN MODE SW START LED SIG IGNITION MODE SW MODE VOLT IGNITION MODE SWITCH IMMOBILIZER CTRL MODULE CTRL INDICATOR DIMMING CTRL INFOTAINMENT REGULATED CTRL INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LED BACKLIGHT DIMMING CTRL 1 LEFT FRONT DRL CTRL LIN BUS 4 LIN BUS 5 LOW SPD GMLAN SERIAL DATA PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM REAR FOG LAMP SW SIG REAR WINDOW WIPER SW SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE REMOTE FUNCTION ACTR CTRL RUN/CRANK IGN 1 VOLT SECURITY INDICATOR CTRL SET/COAST/RESUME/ ACCELERATE SW SIG WINDSHIELD WIPER SW LOW REF SHIFT SELECT SW PERFORMANCE SIG START IND STOP/START INDICATOR CTRL TAP UP/TAP DOWN SW SIG TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM WIRELESS CHARGE SYSTEM CHARGE IND CTRL HAZARD SW RIGHT TURN SIG YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

AUTOMATIC A/C BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BRN/VIO 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 INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA 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 UNDERHOOD FUSE BLOCK

BATTERY FUSE BLOCK BLK WIRE BLU/BRN WIRE BRN/VIO WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP RELAY LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP NCA WIRE RED WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP CONTROL MODULE RIGHT HEADLAMP RELAY RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RIGHT PARK DAYTIME RUNNING LAMP UNDERHOOD FUSE BLOCK WHT WIRE WHT/BRN WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE

BATTERY FUSE BLOCK BLK WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE GRN WIRE GRN/WHT WIRE GRY WIRE HIGH NOTE HORN HORN ASSEMBLY HORN RELAY HORN RLY CTRL HORN SW SIG HORN SWITCH HOT AT ALL TIMES LOW NOTE HORN RED WIRE STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK WHT WIRE

A/C COMPRESSOR CLUTCH RELAY A/C REFRIGERANT PRESSURE SENSOR A/C SWITCH BATTERY FUSE BLOCK BLK WIRE BLK/GRN WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/RED WIRE DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH ENGINE CONTROLS IGNITION RELAY FAN DOWN SWITCH FAN UP SWITCH GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HVAC CONTROLS LEFT TEMPERATURE UP SWITCH START/ STOP SWITCH RIGHT TEMPERATURE DOWN SWITCH LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH MAX WINDSHIELD DEFROST IND MAX WINDSHIELD DEFROST SWITCH RECIRCULATION IND RECIRCULATION SWITCH RED WIRE RED/BLU WIRE RIGHT TEMPERATURE UP SWITCH UNDERHOOD FUSE BLOCK UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH VIO/BLU WIRE WHT/GRY WIRE WINDSHIELD DEFROST IND WINDSHIELD DEFROST SWITCH WINDSHIELD DEFROST SWITCH LEFT TEMPERATURE DOWN SWITCH

BATT POS BG COAX WIFI ANTENNA COAX SIG BK COAX AM/FM BK USB USB SERIAL DATA BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE CAMERA SIGNAL 2 CAMERA SIGNAL 2 (-) MICROPHONE 4 LOW REF COAX DATA ETHERNET BUS 4 (-) GRN/BLK WIRE GRN/BRN WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HD/XM COAX CU LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LOGIC MIC (-) LOW REF MIC SIG MICROPHONE 1 FEEDBACK SIG MICROPHONE 1 SIG MICROPHONE 2 FEEDBACK SIG MICROPHONE 2 SIG MICROPHONE 3 FEEDBACK SIG MICROPHONE 3 SIG MICROPHONE 4 SIG NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) RADIO RED WIRE RED/BRN WIRE RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE USB USB SERIAL VIO/BLU WIRE VOLT W/O S-BAND DIGITAL AUDIO SYSTEM WHT/BLU WIRE WHT/GRN WIRE WLAN WIRELESS COMMUNICATION ANTENNA YEL WIRE

BATT POS BG COAX WIFI ANTENNA COAX SIG BK COAX AM/FM BK USB USB SERIAL DATA BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE CAMERA SIGNAL 2 CAMERA SIGNAL 2 (-) MICROPHONE 4 LOW REF COAX DATA ETHERNET BUS 4 (-) GRN/BLK WIRE GRN/BRN WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HD/XM COAX CU LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LOGIC MIC (-) LOW REF MIC SIG MICROPHONE 1 FEEDBACK SIG MICROPHONE 1 SIG MICROPHONE 2 FEEDBACK SIG MICROPHONE 2 SIG MICROPHONE 3 FEEDBACK SIG MICROPHONE 3 SIG MICROPHONE 4 SIG NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) RADIO RED WIRE RED/BRN WIRE RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE USB USB SERIAL VIO/BLU WIRE VOLT W/O S-BAND DIGITAL AUDIO SYSTEM WHT/BLU WIRE WHT/GRN WIRE WLAN WIRELESS COMMUNICATION ANTENNA YEL WIRE

AUDIO AMPLIFIER (CENTER OF DASH) BATT POS VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER COAX COMPUTER DATA ENGINE CONTROL MODULE ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (+) GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LF TWEETER SPEAKER (+) LINES SYSTEM LOW SPEED GMLAN LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MICROPHONE 1 FEEDBACK SIG MICROPHONE 1 SIG MICROPHONE 2 FEEDBACK SIG MICROPHONE 2 SIG MICROPHONE 3 FEEDBACK SIG MICROPHONE 3 SIG MICROPHONE 4 LOW REF MICROPHONE 4 SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/VIO WIRE REPLICATED SIG RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RF TWEETER SPEAKER (+) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SERIAL DATA 2 VIO/BLU WIRE VIO/BRN WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/WHT WIRE

ACTIVE NOISE CANCELLATION MODULE BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOW SPEED GMLAN LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MICROPHONE 1 LOW REF MICROPHONE 1 SIG MICROPHONE 2 LOW REF MICROPHONE 2 SIG MICROPHONE 3 LOW REF MICROPHONE 3 SIG MICROPHONE 4 LOW RTN MICROPHONE 4 SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/VIO WIRE REMOTE ENABLE SIG REPLICATED SIG RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SERIAL DATA 2 VIO/BLU WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE