GMC Terrain II (2017-2021) power supply transformer (w/ start/stop system) (lower center of dash) Wiring diagrams

5 VOLT REF A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE AUXILIARY HEATER CTRL BATT POS BATT POS VOLT BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLOWER MOTOR BLOWER MTR SPD CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR BRN/GRN WIRE BRN/PPL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 9 DEFOGGER SYSTEM DRIVER INFORMATION CENTER DISPLAY DSP HMI FUSE ELEC VARIABLE DISPLACEMENT CTRL ELEC VARIABLE DISPLACEMENT SPLY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND FUSE 3 FUSE 4 FUSE 6 GRN WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HUMIDITY SENS SIG HUMIDITY TEMP SENS SIG HVAC BLWR FUSE HVAC CONTROL MODULE (TOP CENTER OF DASH) HVAC FUSE INSIDE AIR TEMP SENS SIG INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA LOWER RIGHT FRONT OF ENGINE) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE REAR DEFOG RLY CTRL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE REGULATED CTRL RUN/CRANK IGNITION 1 VOLT SOLAR SENS DRV SIG SOLAR SENS LOW REF SPD CTRL TEMP SENS LOW REF UNDERHOOD FUSE BLOCK VAR/FUNC FUSE VIO WIRE VOLT W/ START/STOP SYSTEM W/O START/STOP SYSTEM WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL WIRE YEL/BLU WIRE YEL/RED WIRE

12 VOLT REF ALERT LED CTRL BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN WIRE CAM LGM VPM FUSE CHEVROLET COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DIMMING CTRL DRIVE MODE SELECT SWITCH DRIVER LEFT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER SEAT MEMORY CONTROL MODULE FORWARD COLLISION ALERT LED CTRL FORWARD COLLISION ALERT WARNING SWITCH FRONT VIEW WINDSHIELD CAMERA FUSE 3 GMC GRN WIRE GRN/WHT WIRE GROUND GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOCAL INTERCONNECT NETWORK BUS 8 LOGIC LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 LR HAPTIC SEAT MOTOR CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE REFLECTED LED DISPLAY DIMMING CTRL RR HAPTIC SEAT MOTOR CTRL SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VAR/FUNC FUSE W/ FORWARD COLLISION ALERT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BRN WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE BATT POS BATT POS VOLT BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLOWER MOTOR BLOWER MTR SPD CTRL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR BRN/GRN WIRE BRN/PPL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 9 DEFOGGER SYSTEM DRIVER INFORMATION CENTER DISPLAY DSP HMI FUSE ELEC VARIABLE DISPLACEMENT CTRL ELEC VARIABLE DISPLACEMENT SPLY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND FUSE 3 GRN WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC BLWR FUSE HVAC CONTROL MODULE (TOP CENTER OF DASH) HVAC FUSE INSIDE AIR TEMP SENS SIG INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA LOWER RIGHT FRONT OF ENGINE) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE REGULATED CTRL RUN/CRANK IGNITION 1 VOLT SOLAR SENS DRV SIG SOLAR SENS LOW REF SPD CTRL UNDERHOOD FUSE BLOCK VAR/FUNC FUSE VOLT W/ START/STOP SYSTEM W/O START/STOP SYSTEM

BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLU/BRN WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISABLE SW SIG DRIVER INFORMATION CENTER DISPLAY DSP HMI FUSE FRT PARKING LEFT/RIGHT/MID SENS LF SUPPLEMENTAL OBJECT SENS SIG FRT PARKING FRT PARKING SENS LOW REF FUSE 3 GMLAN SER DATA (-) (2) GND REAR PARK ASSIST DISABLE SIG GRN WIRE GRN/BRN WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LED DISABLE SIG LEFT CORNER SENS FRT PARKING LEFT MID SENS LEFT FRONT MIDDLE PARKING ASSIST SENSOR LEFT FRONT OUTER PARKING ASSIST SENSOR LEFT FRONT SIDE PARKING ASSIST SENSOR LEFT REAR MIDDLE PARKING ASSIST SENSOR LEFT REAR OUTER PARKING ASSIST SENSOR LO SPD GMLAN SER DATA LOGIC LR CORNER OBJECT SENS SIG LR MIDDLE OBJECT SENS SIG OBJECT SENS CTRL OBJECT SENS LOW REF PARKING ASSIST CONTROL MODULE (RIGHT SIDE OF LUGGAGE AREA) PARKING ASSIST DISABLE SWITCH PARKING ASSIST IND PARKING ASSIST ON/OFF SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRY WIRE PPL/WHT WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT MIDDLE PARKING ASSIST SENSOR RIGHT FRONT OUTER PARKING ASSIST SENSOR RIGHT FRONT SIDE PARKING ASSIST SENSOR RIGHT REAR MIDDLE PARKING ASSIST SENSOR RIGHT REAR OUTER PARKING ASSIST SENSOR RR CORNER OBJECT SENS SIG RR MIDDLE OBJECT SENS SIG W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/PPL WIRE YEL/WHT WIRE