GMC Terrain II (2017-2021) logic Wiring diagrams

BATT POS VOLT BATT POSITIVE VOLT BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/PPL WIRE BLK/WHT WIRE BLU WIRE BLU/PPL WIRE BODY CONTROL MODULE BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENS CTRL CURRENT SENS LOW REF CURRENT SENS SIG DRIVER INFORMATION CENTER DISPLAY ECM FUSE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE 5 FUSE 6 FUSE 7 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GMLAN SERIAL DATA - 1 GRY WIRE GRY/GRN WIRE HI SPD GMLAN SRL DATA (-) (1) INSTRUMENT CLUSTER LO SPD GMLAN LOGIC RED WIRE RED/BRN WIRE RED/WHT WIRE SERIAL DATA 2 SIG GND STARTER MOTOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/YEL WIRE

1.6L TURBO DIESEL 2.0L TURBO, 1.5L TURBO BATT POS VOLT BATTERY BATTERY FUSE BLOCK BATTERY SENSOR MODULE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ECM FUSE ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE 5 FUSE 6 FUSE 7 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GMLAN SERIAL DATA - 1 GRN/PPL WIRE GRY WIRE GRY/GRN WIRE INSTRUMENT CLUSTER LO SPD GMLAN LOGIC RED WIRE RED/BRN WIRE RED/WHT WIRE SERIAL DATA 2 SIG GND STARTER MOTOR UNDERHOOD FUSE BLOCK WHT WIRE

BACK SWITCH BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BRN/BLU WIRE CDST- VENT FUSE COMPUTER DATA LINES SYSTEM CUSHION, BACK SWITCH DR/SEAT/ VENT FUSE DRIVER BACK SEAT BLOWER MOTOR DRIVER CUSHION SEAT BLOWER MOTOR DRV SEAT VENT MOTOR CTRL 1 GRN/PPL WIRE GRN/WHT WIRE GRY/BLK WIRE HIGH TEMP IND HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT ILL LOGIC LOW TEMP IND MED TEMP IND NCA WIRE PASS SEAT VENT MOTOR CTRL 1 PASSENGER BACK SEAT BLOWER MOTOR PASSENGER BACK SEAT HEATING ELEMENT PASSENGER CUSHION SEAT BLOWER MOTOR PASSENGER CUSHION SEAT HEATING ELEMENT PASSENGER SEAT HEATING SWITCH PPL/BLK WIRE PPL/GRY WIRE PPL/WHT WIRE RED/YEL WIRE UNDERHOOD FUSE BLOCK WHT/BLU WIRE WHT/GRY WIRE

BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE GRN WIRE GRN/RED WIRE GRY WIRE HDL-WHL FUSE HEATED STEERING WHEEL IND HEATED STEERING WHEEL SWITCH HIGH CTRL HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INDICATOR DIMMING CTRL LED CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOGIC NCA WIRE ORG/ WIRE PPL/BLK WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SENS SIG STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER STEERING WHEEL HEATING CONTROL MODULE SW SIG UNDERHOOD FUSE BLOCK VOLT REF WHT WIRE

BATT POS VOLT BCM 8 FUSE BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) COMPUTER DATA LINES SYSTEM DISPLAY INFORMATION CENTER DISPLAY GRN WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LG LATCH FUSE LIFT GLASS/REAR COMPARTMENT LID LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH LIFTGATE UNLATCH RELAY LIFTGATE UNLATCH SWITCH LOGIC LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 PPL/GRY WIRE REAR CLOSURE HANDLE SW OPEN SIG RED/BLU WIRE RED/BRN WIRE YEL/BLU WIRE

APO CIRCUIT BREAKER BLK WIRE BODY CONTROL MODULE CENTER CONSOLE REAR ACCESSORY POWER RECEPTACLE CENTER CONSOLE REAR USB RECEPTACLE CHG IND CTRL CIGARETTE LIGHTER RECEPTACLE CIGLTR FUSE DRIVER SEAT HEATING SWITCH FROM OCC SENS FUSE (DIAGRAM 3 OF 9) FRT HT SW FUSE GMC GRN WIRE GRY/GRN WIRE INSTRUMENT PANEL ACCESSORY POWER RECEPTACLE INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LG LATCH FUSE LIFTGATE UNLATCH RELAY LOGIC MOBILE DEVICE WIRELESS CHARGER MODULE PASSENGER SEAT HEATING SWITCH PPL PWR FSD CTRL RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RETAINED ACCESSORY POWER RELAY RIGHT STEERING WHEEL CONTROLS SWITCH SHFT CHRG FUSE STEERING WHEEL AIR BAG COIL SWC FUSE VOLT W/ SMOKERS PACKAGE ACCESSORY W/O SMOKERS PACKAGE ACCESSORY

5 VOLT REF AJAR SW SIG 1 AJAR SW SIG 2 AJAR SW SIG 3 BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/PPL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAM LGM VPM FUSE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/PPL WIRE GRY/WHT WIRE HANDLE SW OPEN SIG HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK L/GATE FUSE LEFT LIFTGATE OBJECT SENSOR LIFTGATE CLOSE SWITCH LIFTGATE CONTROL MODULE (BEHIND LEFT REAR TRIM PANEL) LIFTGATE UNLATCH SWITCH LIN SERIAL DATA BUS 18 LOGIC LOW REF LOW SPD GMLAN SERIAL DATA 2 MTR CLOSE CTRL MTR OPEN CTRL MTR RELEASE CTRL 2 OBJECT SENSOR SIG ON/OFF SW SIG OPEN/CLOSE SW SIG POSITION SENS SIG 1 POSITION SENS SIG 2 REAR BODY FUSE BLOCK REAR CLOSURE OPEN RED/GRN WIRE RED/GRY WIRE RIGHT LIFTGATE OBJECT SENSOR SHUT FACE SW LED CTRL SHUT FACE SW SIG WHT WIRE WHT/BLK WIRE YEL/BLU WIRE

1.6L TURBO DIESEL ACC IGN VOLT BATTERY BATTERY FUSE BLOCK BATTERY SENSOR MODULE BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) COMPUTER DATA LINES SYSTEM DC DC TRANS FUSE FUSE 3 FUSE 5 FUSE 6 GENERATOR GMLAN SER DATA GMLAN SER DATA - (1) GRN WIRE GRN/BLK WIRE HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED IGN 1 VOLT IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE LOGIC LOW REF NON/ WALK FUSE PPL/BLK WIRE PPL/BLU WIRE PPL/YEL WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE STARTER 1 FUSE STARTER 2 FUSE STARTER MOTOR STARTER PINION SOLENOID ACTUATOR RELAY STARTER RELAY SW SIG 2 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/PPL WIRE

AIR BAG IND AUTOMATIC LOCKING RETRACTOR SW LOW REF AUTOMATIC LOCKING RETRACTOR SW SIG BATT POSITIVE VOLT BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE COMPUTER DATA COMPUTER DATA LINES SYSTEM DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMLAN GRN WIRE GRY/GRN WIRE GRY/ORG WIRE HI SPEED GMLAN SERIAL DATA (+) (2) HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER CONSOLE) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LINES SYSTEM LO SPD LO SPD GMLAN SERIAL DATA LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE OCC SENS FUSE ORG/BRN WIRE ORG/GRN WIRE ORG/PPL WIRE ORG/WHT WIRE PASS AIR BAG OFF INDICATOR CTRL PASS AIR BAG ON INDICATOR CTRL PASS IP MOD STAGE 1 HI CTRL PASS IP MOD STAGE 1 LO CTRL PASS IP MOD STAGE 2 HI CTRL PASS IP MOD STAGE 2 LO CTRL PASS SEAT BELT INDICATOR CTRL PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE MODULE PASSENGER SEAT BELT TENSION SENSOR PNK WIRE RED/BRN WIRE RED/GRN WIRE SDM FUSE SEAT BELT IND SERIAL SERIAL DATA COMMUNICATION ENABLE SHORTING BAR SIG GND SIG GROUND STEERING WHEEL AIR BAG (IN STEERING WHEEL) STEERING WHEEL AIR BAG COIL STEERING WHEEL MOD STAGE 1 HI CTRL STEERING WHEEL MOD STAGE 1 LO CTRL STEERING WHEEL MOD STAGE 2 HI CTRL STEERING WHEEL MOD STAGE 2 LO CTRL TAN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/ORG WIRE YEL/ORG WIRE

B+ VOLT BATT POS VOLT BCM 4 FUSE BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DATA BUS 1 DRIVER INFORMATION CENTER DISPLAY FRT WPR FUSE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IND CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC MTR PARK SW SIG N/W SER N/W SER BUS 12 PPL RAIN/AMBIENT LIGHT SENSOR MODULE REAR WIPER SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/PPL WIRE RLY COIL CTRL RLY CTRL SW HIGH SIG UNDERHOOD FUSE BLOCK WASHER SW SIG WHT WIRE WHT/BLK WIRE WHT/PPL WIRE WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WIPER SW HIGH SIG WIPER SW LO SIG WIPER SW LOW REF YEL WIRE YEL/BLU WIRE YEL/BRN WIRE