GMC Terrain II (2017-2021) Computer data lines circuit

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

ACCY IGN VOLT BLU WIRE BLU/BLK WIRE BLU/YEL WIRE DATA BUS 8 DRIVER SEAT MEMORY CONTROL MODULE FRONT VIEW CAMERA MODULE (W/ FORWARD COLLISION ALERT) GRN WIRE GRN/BRN WIRE GRN/PPL WIRE GRN/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 2 KEYLESS ENTRY CONTROL MODULE LIFTGATE CONTROL MODULE LO SPD GMLAN LO SPD GMLAN SER DATA NETWORK SER NETWORK SER DATA BUS 18 NETWORK SER DATA BUS 21 PARKING ASSIST CONTROL MODULE (IF EQUIPPED) (RIGHT SIDE OF LUGGAGE AREA) PASSENGER PRESENCE MODULE PPL/YEL WIRE SER DATA SER DATA COMM ENABLE TOP OF TRANSMISSION) TRANSMISSION RANGE CONTROL MODULE 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

6 SPEED A/T ACCY IGN VOLT ACCY WAKEUP SER DATA ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR BATTERY SENSOR MODULE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BODY CONTROL MODULE DATA BUS 21 FRONT OF RADIATOR) GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PPL WIRE GRN/WHT WIRE GRN/YEL WIRE HI SPD GMLAN HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (-) 2 LO SPD GMLAN SER DATA NETWORK SER NETWORK SER DATA BUS 1 NETWORK SER DATA BUS 15 NETWORK SER DATA BUS 2 NETWORK SER DATA BUS 21 NETWORK SER DATA BUS 3 NETWORK SER DATA BUS 4 PPL/YEL WIRE SER DATA (-) (1) SER DATA COMM ENABLE WHT WIRE WHT/BLU WIRE

6 SPEED A/T ACCY WAKEUP SER DATA BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/YEL WIRE EXHAUST PARTICULATE MATTER SENSOR FUEL PUMP DRIVER CONTROL MODULE GRN WIRE GRN/PPL WIRE HI SPD GMLAN HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 7 NETWORK SER DATA BUS 21 NITROGEN OXIDES SENSOR 1 (IN TURBOCHARGER OUTLET) PPL/YEL WIRE REDUCTANT CONTROL MODULE SER DATA (-) 7 W/ START/STOP W/O START/STOP W/O CATALYTIC REDUCTION SYSTEM W/O ELECTRONIC TRANSMISSION RANGE SELECTOR SYSTEM, START/STOP WHT WIRE WHT/BLU WIRE

1.5L TURBO, 2.0 TURBO ACCY WAKEUP BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/YEL WIRE GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/PPL WIRE HI SPD GMLAN INSTRUMENT CLUSTER LO SPD GMLAN SER DATA 2 MOST SER DATA (+) NETWORK SER DATA BUS 12 NITROGEN OXIDES SENSOR 2 PPL/YEL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SER DATA SER DATA (-) 7 SER DATA - (3) STEERING WHEEL AIR BAG COIL TRANSMISSION RANGE SELECTOR CONTROLS VIDEO PROCESSING CONTROL MODULE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/BLK WIRE BUS 4 COMM ENABLE ETHERNET ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) FIRST BREAKOUT TO RIGHT INSTRUMENT GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/PPL WIRE GRY/WHT WIRE HI SPD GMLAN HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR HUMAN MACHINE INTERFACE CONTROL MODULE INFO DISPLAY MODULE LO SPD GMLAN LO SPD GMLAN SER DATA 2 LOW LEVEL MOST SER DATA (+) PANEL SPEAKER) RADIO SER DATA SER DATA (+) 2 SER DATA (+) 9 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE (CENTER OF DASH) W/ ON STAR W/O ON STAR WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

ACTIVE NOISE CANCELLATION MODULE AUDIO AMPLIFIER BATT POSITIVE VOLT BLK WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE CYB SEC FUSE DATA DATA BUS - GRN WIRE GRY/GRN WIRE GRY/PPL WIRE HEADLAMP LEVELING CONTROL MODULE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 2 LO SPD GMLAN SER DATA HI SPD GMLAN SER DATA (-) 2 HI SPD GMLAN SER DATA (-) 8 HI SPD GMLAN SER DATA (-) 8 LO SPD GMLAN SER DATA HI SPD GMLAN SER DATA (-) 9 HIGH SPEED BUS TERMINATING RESISTOR HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN LO SPD GMLAN SER DATA 2 MOST SER RED/GRN WIRE SER DATA (+) 2 SER DATA COMM ENABLE SERIAL DATA GATEWAY MODULE (CENTER OF DASH) W/ ONSTAR W/ PREMIUM BRANDED AMPLIFIER W/O ONSTAR W/O PREMIUM BRANDED AMPLIFIER WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE