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

BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GROUND GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HI SPD GMLAN SERIAL DATA (-) (2) SERIAL DATA COMM ENABLE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN SERIAL DATA 2 POWER STEERING CONTROL MODULE (ON POWER STEERING MOTOR) POWER STEERING MOTOR POWER STEERING WARNING LIGHT IND RED WIRE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE

BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN ETHERNET BUS 4 (-) GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/BRN WIRE RED/VIO WIRE REF RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE LOW REF VOICE SIGNAL VOL (-) W/ ONSTAR W/O ONSTAR WHT/GRN WIRE WHT/YEL WIRE YEL/BLU 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

AUDIO LOW REF AUDIO SIG + BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOW SPD GMLAN SERIAL DATA 2 LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MIC (-) LOW REF MIC SIG POWER SUPPLY TRANSFORMER RADIO RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE REF REGULATED CTRL REMOTE ENABLE SIG RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT FRONT MOBILE TELEPHONE MICROPHONE RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SERIAL DATA (-) 9 SERIAL DATA (-) 9 BACKUP LAMP CTRL SERIAL DATA (-) 9 SERIAL DATA (+) 9 SERIAL DATA COMM ENABLE SIG VIO/YEL WIRE W/ ONSTAR W/ START/ STOP SYSTEM W/O ONSTAR W/O START STOP SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

& RECEIVER ACTR LOCK CTRL ACTR UNLCK CTRL BATT POS VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE BRN/VIO 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 (+) 1 RECEIVE SIG GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD OPEN SW SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM INSTRUMENT CLUSTER 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 POWER DISTRIBUTION SYSTEM RCV SIG RECEIVER CTRL REMOTE CONTROL DOOR LOCK RECEIVER RH HDLP LO BEAM CTRL SEC IND CTRL SECURITY IND SERIAL DATA (+) (3) TRANS SIG UNLCK SIG VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

AJAR AMBIENT LIGHT/ SUNLOAD SENSOR BLK WIRE BLK/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/YEL WIRE BUS 3 BUS 4 COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH FUEL FILL DOOR LOCK ACTUATOR GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE HVAC CONTROL MODULE LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR LOGIC LOW REF LR DR AJAR NETWORK NETWORK BUS 3 PASS DR PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT/VIO WIRE

ANT SIG HI ANT SIG LO BLK WIRE BLU WIRE BRN/GRN WIRE BRN/YEL WIRE DRIVER DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRV DR HANDLE SW SIG GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE KEYLESS ENTRY CONTROL MODULE (BEHIND LOWER RIGHT REAR TRIM PANEL) LEFT REAR EXTERIOR DOOR HANDLE SWITCH LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LR DR HANDLE SW SIG NCA WIRE PASS DR HANDLE SW SIG PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH RED WIRE RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RR DR HANDLE SW SIG VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT/GRN WIRE YEL/GRY WIRE

BLK WIRE BRN/GRN WIRE BRN/YEL WIRE BUS 3 BUS 4 COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOGIC LR DR AJAR NETWORK NETWORK BUS 4 PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR FASCIA KEYLESS ENTRY ANTENNA RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SECURITY IND SW SIG VIO WIRE WHT/GRN WIRE

AJAR SW SIG BLK WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOOR LOCKS SYSTEM DOWN DOWN SIG DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH DRV (+) DRV UP SIG EXPRESS EXPRESS SIG GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ILL INSTRUMENT PANEL FUSE BLOCK LEFT FRONT LEFT REAR LIN SERIAL LIN SERIAL DATA BUS 3 LOCKOUT INDICATOR LOGIC MTR STATUS SIG RED/BRN WIRE RED/YEL WIRE RIGHT FRONT RIGHT REAR UNLCK SIG WHT/VIO WIRE WINDOW LOCK SWITCH WINDOW SWITCH

AJAR SW SIG BLK WIRE BLU/GRY WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOOR LOCKS SYSTEM DOWN DOWN CTRL EXPRESS GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE ILL LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH LIN SERIAL LIN SERIAL DATA BUS 4 LOGIC LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH RED/BRN WIRE RED/YEL WIRE RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH RR DOWN CTRL RR DR AJAR SW SIG RR UP CTRL UP CTRL YEL/BLU WIRE