GMC Terrain II (2017-2021) (top center of dash) Wiring diagrams

1.5L TURBO, 2.0L TURBO 1.6L TURBO DIESEL 5 VOLT REF A/C PRESS AMBIENT LIGHT/SUNLOAD SENSOR ANTI-THEFT SYSTEM BATT POS BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BRN/RED WIRE CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM COOLANT TEMP COOLING FAN COOLING FAN MOTOR (MOUNTED TO COOLING FAN SHROUD) CTRL RLY SIG DATA (-) (3) ENG COOLANT ENGINE CONTROLS SYSTEM FUSE SPLY 1 GMLAN SERIAL GRN WIRE GRN/PPL WIRE GRY WIRE HEADLIGHTS SYSTEM HTR RLY CTRL J110 (1.5L TURBO, 2.0L TURBO) LOGIC LOW REF 2 MAIN RLY PPL/BLU WIRE RADIATOR COOLANT TEMPERATURE SENSOR RED/BLU WIRE RED/WHT WIRE SENS 2 LO REF SENS LO REF SENS SIG SPD SIG TEMP SENS SIG UNDERHOOD FUSE BLOCK VOLT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE

BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE DATA BUS 18 DATA BUS 9 DATA LINK CONNECTOR (BELOW STEERING COLUMN) DLC LEFT FUSE GRN WIRE GRN/BRN WIRE GRN/YEL WIRE HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HI SPD GMLAN SER DATA (+) 5 HI SPD GMLAN SER DATA (-) 2 HOT AT ALL TIMES HVAC CONTROL MODULE HVAC CONTROLS INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT PANEL FUSE BLOCK LEFT SIDE OBJECT SENSOR MODULE LO SPD GMLAN LO SPD GMLAN SER DATA NETWORK SER RED/PPL WIRE RIGHT SIDE OBJECT SENSOR MODULE SER DATA SER DATA COMM ENABLE WHT WIRE WHT/BLU WIRE

AMBIENT LIGHT/ SUNLOAD SENSOR BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE DATA BUS 1 DATA BUS 15 DATA BUS 2 DRIVER SEAT HEATING SWITCH DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH EXPRESS DOWN DRIVER POWER OPERATED WINDOW FRONT SEAT HEATING CONTROL MODULE GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PPL WIRE GRN/WHT WIRE GRN/YEL WIRE LEFT REAR SEAT HEATING SWITCH LEFT REAR WINDOW SWITCH NETWORK SER NETWORK SER DATA BUS 15 NETWORK SER DATA BUS 2 NETWORK SER DATA BUS 3 NETWORK SER DATA BUS 4 NETWORK SER DATA BUS 8 PASSENGER SEAT HEATING SWITCH PASSENGER WINDOW SWITCH PPL/YEL WIRE RAIN/AMBIENT LIGHT SENSOR MODULE REAR SEAT HEATING CONTROL MODULE RIGHT REAR SEAT HEATING SWITCH RIGHT REAR WINDOW SWITCH SUNROOF CONTROL MODULE TRANSMISSION SHIFT LEVER POSITION INDICATOR W/O ONSTAR WHT WIRE WHT/BLU WIRE YEL WIRE

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

AMBIENT LIGHT SENSOR SIG AMBIENT LIGHT/ SUNLOAD SENSOR AUTO BATTERY POSITIVE VOLTAGE BCM 1 FUSE BCM 3 FUSE BCM 4 FUSE BLK WIRE BLK/GRN WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/PPL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIMMER SW HI BEAM SIG DRL RLY CTRL FOG LAMP RLY CTRL FRONT FOG LAMP SW SIG FRONT FOG LAMP SWITCH GRN/BRN WIRE GRN/GRY WIRE GROUND GRY/BRN WIRE HDLP AUTO HI BEAM DIM CTRL HDLP HI BEAM RLY CTRL HDLP SW FLASH TO PASS SIG HDLP SW OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEAD HEADLAMP SWITCH HI SPD GMLAN SERIAL DATA HOT AT ALL TIMES HVAC CONTROL MODULE (TOP CENTER OF DASH) INSTRUMENT PANEL FUSE BLOCK LEFT LOW BEAM SPLY CTRL LEFT PARK LAMP CTRL LOW REFERENCE OFF PARK PPL/GRY WIRE REAR FOG LAMP REAR FOG LAMP SW SIG REAR FOG LAMP SWITCH RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RIGHT LOW BEAM SPLY CTRL RIGHT PARK LAMP CTRL RR FOG LAMP CTRL TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/PPL WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

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