GMC Terrain II (2017-2021) hot w/ ignition main relay energized Wiring diagrams

BATTERY FUSE BLOCK BCM 2 FUSE BCM 6 FUSE BLK WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) COMPUTER DATA LINES SYSTEM CTRL DRIVER MODE SELECT SWITCH FUSE 3 GRN/BLU WIRE GRY/PPL WIRE HIGH SPEED GMLAN SERIAL DATA (+) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INSTRUMENT PANEL FUSE BLOCK LOGIC NETWORK BUS 2 PARK LOCK SOL CTRL PARK POSITION SWITCH POWER SUPPLY TRANSFORMER PPL/BLK WIRE PPL/GRN WIRE PPL/YEL WIRE PRESS BRAKE RAP RLY COIL RAP RLY COIL CTRL RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SHIFT POS SIG SHIFT SELECT SWITCH PERFORMANCE SIG SPLY VOLT 2 SPLY VOLT 2 BATT POS VOLT TAP UP/TAP DOWN SW SIG TCM FUSE TCM/ECM FUSE TOW/HAUL SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK UP/DOWN TRANSMISSION MANUAL SHIFT SWITCH W/O START/STOP SYSTEM W/ START/STOP SYSTEM WHT WIRE WHT/PPL WIRE

1.6L TURBO DIESEL 1.5L TURBO ACCESSORY WAKEUP SERIAL DATA BLK WIRE BLU/BLK WIRE BLU/BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY E SHIFT FUSE GRY/GRN WIRE HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 7 HI SPD GMLAN SER DATA (-) 7 ACCESSORY WAKEUP SERIAL DATA HI SPD GMLAN SER DATA (-) 7 BATT POS VOLT HOT W/ IGNITION MAIN RELAY ENERGIZED HOT W/ REDUCTANT CONTROL MODULE RELAY 2 ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA 2 NOX SOOT FUSE PPL/BLU WIRE PPL/GRN WIRE PPL/YEL WIRE RED/BRN WIRE RED/GRN WIRE RUN/CRANK IGNITION 1 VOLT TRANSMISSION RANGE SELECTOR CONTROLS UNDERHOOD FUSE BLOCK UP/DOWN TRANSMISSION MANUAL SHIFT SWITCH VAR/FUNC FUSE WHT WIRE

ACCESSORY WAKEUP SERIAL DATA ANALOG SIG 1 ANALOG SIG 2 BATT POSITIVE VOLT BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLUTCH A CTRL CLUTCH B CTRL CLUTCH C CTRL CLUTCH D CTRL CLUTCH E CTRL COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ECM/TCM FUSE GRN/GRY WIRE GRN/PPL WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 (PINS: 39 TO 48 NOT USED) 49 HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE CTRL IN SPD SIG INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA 2 LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 21 LOGIC OUT SPD SIG PARK LOCK SOL CTRL PARK SW 2 SIG PARK SW SIG PPL PPL/BLK WIRE PPL/GRN WIRE PPL/WHT WIRE PPL/YEL WIRE RED/GRN WIRE RUN/CRANK IGNITION 1 VOLT SIG GND TCC/CLUTCH SOL CTRL TCM FUSE TRANS CLUTCH F CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS HI SIDE DRV 1 SIG TRANS HI SIDE DRV 2 SIG TRANS INTERMEDIATE SPD SIG TRANS LEVEL TEMP SENS TRANS OIL TEMP SENS LO REF TRANS OIL TEMP SENS SIG TRANSMISSION CONTROL MODULE (FRONT OF TRANSMISSION) UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACC WAKEUP SERIAL DATA BATT POS VOLT BATTERY FUSE BLOCK BCM 2 FUSE BCM 6 FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BUS 2 COIL CTRL COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH E SHIFT FUSE FUSE 3 GRN/BLU WIRE GRY/PPL WIRE HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 7 HI SPD GMLAN SER DATA (-) 7 ACC WAKEUP SERIAL DATA HI SPD GMLAN SER DATA (-) 7 BATT POS VOLT HI SPD GMLAN SER DATA - HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INSTRUMENT PANEL FUSE BLOCK LOGIC NETWORK NETWORK BUS 2 PARK LOCK SOL CTRL PARK POSITION SWITCH POWER SUPPLY TRANSFORMER PPL/BLK WIRE PPL/GRN WIRE PPL/YEL WIRE PRESS BRAKE RAP RLY RAP RLY COIL CTRL RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SHIFT POS SIG SHIFT SELECT SW PERFORMANCE SIG SIG GND SPLY TAP UP/TAP DOWN SW SIG TOW/HAUL SWITCH TRANSMISSION RANGE SELECTOR CONTROLS TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK UP/DOWN TRANSMISSION MANUAL SHIFT SWITCH VAR/ FUNC FUSE VOLT 2 WHT WIRE WHT/PPL WIRE

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

BACKUP LAMP CTRL BACKUP LAMP CTRL IGN BLK WIRE BLK/YEL WIRE BODY CONTROL MODULE DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN/WHT WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSIDE REAR VIEW MIRROR ISRVM FUSE LOGIC LOW REF MIRROR DIMMING PPL/GRY WIRE SIG UNDERHOOD FUSE BLOCK YEL/WHT 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 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOGIC LOGIC LOGIC PASSENGER WINDOW SWITCH LOGIC RIGHT REAR WINDOW SWITCH LR DR AJAR NETWORK NETWORK BUS 4 PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PEPS FUSE PPL PPL/GRN WIRE REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR FASCIA KEYLESS ENTRY ANTENNA RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR DR AJAR SW SIG SECURITY IND SW SIG UNDERHOOD FUSE BLOCK VAR/ FUNC FUSE WHT/GRN WIRE

ABS FUSE 22 ABS FUSE 27 APPLY SW SIG APPLY SW VOL REF BLK WIRE BLU/BLK WIRE BLU/PPL WIRE BRN WIRE COMPUTER DATA LINES SYSTAM COMPUTER DATA LINES SYSTEM DATA COM ELECTRONIC BRAKE CONTROL MODULE FRONT FOG LAMP IND GMC GROUND GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE HIGH BEAM IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LO SPD GMLAN SER DATA 2 LOGIC NCA WIRE PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PARK LIGHTS IND PPL/GRN WIRE REAR FOG LAMP IND RED/VIO WIRE RED/WHT WIRE RELEASE SW SIG RELEASE SW VOL REF RIGHT HEADLAMP RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP BALLAST RIGHT HEADLAMP CONTROL MODULE RIGHT HEADLAMP COOLING FAN RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW HEADLAMP RIGHT PARK DAYTIME RUNNING LAMP SIG SPLY VOL UNDERHOOD FUSE BLOCK VAR/ FUNC FUSE W/ HID W/ HID W/ LED W/ LED WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

"CHECK ENGINE" IND CTRL ABS IND. AFL IND AIR BAG IND BATT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BK USB BLK WIRE BRAKE IND BRN/WHT WIRE CHARGING IND COMPUTER DATA LINES SYSTEM CRUISE IND DOOR LOCK IND DOWN DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE OIL PRESSURE IND FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE FUSE 3 GLOW PLUG IND GRN/BLK WIRE GRN/BRN WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/PPL WIRE GRY/YEL WIRE HEAD-UP DISPLAY SIG HIGH BEAM ASSISTANT IND HIGH BEAM LAMP IND HILL DESCENT CONTROL IND HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK IPC USB FUSE KM/H IND LANE KEEPING ASSIST IND LEFT TURN IND LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC LOW FUEL IND LOW SPD GMLAN SERIAL DATA LOW TIRE PRESSURE IND LOW WASHER FLUID IND CTRL MALFUNCTION IND MOST CTRL MOST SERIAL DATA (+) MPH IND NAVIGATION SYSTEM PARK BRAKE IND PARK LAMPS IND POWER SUPPLY TRANSFORMER PPL PPL/GRN WIRE REAR FOG LAMP IND RED/BRN WIRE RED/GRY WIRE REFLECTED LED DISPLAY DIMMING CTRL REGULATED CTRL RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH RIGHT TURN IND SEAT BELT IND SECURITY IND SEEK DOWN SEEK UP SERVICE PARK BRAKE IND SPEEDOMETER TACHOMETER TRACTION OFF IND UNDERHOOD FUSE BLOCK UP LEFT USB USB DRIVE DATA CONNECTOR VAR/ FUNC FUSE VEHICLE AHEAD IND VOL - VOL + SEL VSC IND VSC OFF IND W/ START/STOP SYSTEM W/O START/STOP SYSTEM WAIT TO START INDICATOR CONTROL WHT WIRE WHT/GRN WIRE WHT/PPL WIRE WIPER/ WASHER SYSTEM

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