GMC Terrain II (2017-2021) (forward top right of shock tower) Wiring diagrams

ABS FUSE 22 ABS FUSE 27 BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/PPL WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SENS SIG BRAKE PRESSURE MODULATOR BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/GRY WIRE GRN/PPL WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR LF WHEEL SPD SENS CTRL LF WHEEL SPD SENS SIG LR PARK BRAKE MOTOR APPLY CTRL LR PARK BRAKE MOTOR LOW REF LR WHEEL SPD SENS CTRL LR WHEEL SPD SENS SIG NCA WIRE PARK BRAKE APPLY SW SIG PARK BRAKE APPLY SW VOLT REF PARK BRAKE REL SW SIG PARK BRAKE REL SW VOLT REF PARK BRAKE SW SIG PARK BRAKE SW SPLY VOLT PPL RED/PPL WIRE RED/WHT WIRE RF WHEEL SPD SENS CTRL RF WHEEL SPD SENS SIG RIGHT FRONT WHEEL SPEED SENSOR RR PARK BRAKE MOTOR APPLY CTRL RR PARK BRAKE MOTOR LOW REF RR WHEEL SPD SENS CTRL RR WHEEL SPD SENS SIG SERIAL DATA COMM ENABLE SHIFT INTERLOCK SYSTEM UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

02 SNSR FUSE 1.6L TURBO DIESEL ACC WAKEUP SERIAL DATA AUTOMATIC TRANSMISSION ACCUMULATOR SOLENOID VALVE AUTOMATIC TRANSMISSION ASSEMBLY BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE FUSED SUPPLY 4 GRN WIRE GRN/PPL WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA - HIGH SPD SER DATA (+) (1) HIGH SPD SER DATA (+) 3 BATT POS VOLT HIGH SPD SER DATA (+) 3 GROUND HIGH SPD SER DATA (-) 3 HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN ISS ISS LOW HIGH LIN DATA BUS 21 LOGIC LOW REF NON/ WALK FUSE OSS OSS LOW HIGH PARK/ NEUTRAL SIG 1 PC 2 SOL PC 3 SOL PC 4 SOL PC 5 SOL PPL/BLU WIRE PPL/GRN WIRE PPL/WHT WIRE PPL/YEL WIRE PR LINE SOL PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED WIRE RED/GRN WIRE RED/GRY WIRE RED/PPL WIRE RUN/CRANK IGN 1 VOLT SHFT-CTL FUSE SHIFT SOLENOID VALVE 1 SOL LO SIDE CTRL SS 1 TCC SOL TCM FUSE TFP 1 TFP 3 TFP 4 TFP 5 TFT TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANS POS SW TRANS POS SW BIT 1 SIG TRANS POS SW BIT 2 SIG TRANS POS SW PARITY BIT BIT 3 SIG SIG TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION RANGE CONTROL MODULE (1.6L TURBO DIESEL) (TOP OF TRANSMISSION) TRCM FUSE UNDERHOOD FUSE BLOCK W/O START/STOP SYSTEM W/ START/STOP SYSTEM WAKEUP SER DATA 2 WHT WIRE WHT/GRY WIRE YEL WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE BRAKE FLUID LEVEL SWITCH CHEVROLET CHEVROLET/ GMC COOLING FAN MOTOR DRIVER DOOR ACCENT LAMP DRIVER DOOR HANDLE ACCENT LAMP DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SEAT MEMORY SWITCH DRIVER SIDE OBJECT DETECTOR INDICATOR DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH ELECTRICAL AUXILIARY HEATER ELECTRONIC BRAKE CONTROL MODULE FRONT VIEW CAMERA MODULE INSIDE REAR VIEW MIRROR INTERIOR LIFTGATE CONTROL SWITCH KEYLESS ENTRY CONTROL MODULE LEFT FRONT FOG LAMP LEFT HEADLAMP ASSEMBLY LEFT FRONT TURN SIGNAL LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR WINDOW SWITCH LEFT TURN SIGNAL REPEATER LAMP NCA WIRE POWER STEERING CONTROL MODULE RAIN/ AMBIENT LIGHT SENSOR MODULE SUNROOF CONTROL MODULE TRANSMISSION RANGE CONTROL MODULE UNDERHOOD FUSE BLOCK WINDSHIELD WIPER RELAY W/ INTERIOR LAMP PACKAGE W/ MEMORY WINDSHIELD FRONT VIEW CAMERA WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY

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

ABS FUSE 22 BATT POSITIVE VOLT BATTERY POSITIVE VOLT BCM 4 FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/PPL WIRE BODY CONTROL MODULE BRAKE FLUID LEVEL SENS SIG BRN WIRE BRN/PPL WIRE BRN/WHT WIRE BUS 2 COIL CTRL COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH DRIVER MODE 1 IND CTRL DRIVER MODE 2 IND CTRL DRIVER MODE 4 IND CTRL DRIVER MODE 5 IND CTRL ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/PPL WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA (-) 1 LOGIC MODE MODE 1 IND MODE 2 IND MODE 4 IND MODE 5 IND NETWORK NETWORK BUS 3 PARK BRAKE APPLY SW SIG PARK BRAKE APPLY SW VOLT REF PARK BRAKE REL SW SIG PARK BRAKE REL SW VOLT REF PARK BRAKE SW SIG PARK BRAKE SW SPLY VOLT PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH PPL/YEL WIRE PRESS BRAKE RAP RLY RAP RLY COIL CTRL RED/BLU WIRE RED/PPL WIRE TOW/ HAUL TRANSMISSION SHIFT LEVER POSITION INDICATOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

ABS FUSE B+ VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/PPL WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLK WIRE GRN/PPL WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (1) PARK BRK RELEASE SW VOLT REF HI SPD GMLAN SERIAL DATA (-) (2) HI SPD GMLAN SERIAL DATA (-) 2 SER DATA COMM ENABLE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT PARK BRAKE ACTUATOR LIN SERIAL DATA BUS 2 LOGIC LR PARK BRK MTR APPLY CTRL PARK BRAKE APPLY SW VOLT REF PARK BRAKE SW SPLY VOLT PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK SW SIG PARK IND RED/VIO WIRE RED/WHT WIRE RIGHT PARK BRAKE ACTUATOR RR PARK BRAKE MOTOR LOW REF LR PARK BRK MTR LOW REF RR PARK BRK MTR APPLY CTRL SERVICE PARK BRAKE IND UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

ABS FUSE 22 BATTERY POSITIVE VOLT BATTERY POSITIVE VOLTAGE BCM 4 FUSE BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BLK WIRE BLU/PPL WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRAKE FLUID LEVEL SENS SIG BRAKE FLUID LEVEL SWITCH BRAKE IND BRN WIRE COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE DRIVER WINDOW MOTOR MODULE DRV SEAT BELT DRV SEAT BELT SW SIG ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/RED WIRE HDLP SW OFF SIG CTRL HDLP SW ON SIG CTRL HEAD HEADLAMP SWITCH HI SPD GMLAN SERIAL DATA (-) (1) HI SPEED GMLAN HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LO SPD GMLAN SERIAL DATA (-) 1 LO SPD GMLAN SERIAL DATA 2 LOGIC LR DR AJAR SW SIG NCA WIRE NETWORK BUS 3 NETWORK BUS 4 OFF AUTO ORG/BRN WIRE PARK PARK BRAKE APPLY SW SIG PARK BRAKE APPLY SW VOLT REF PARK BRAKE REL SW SIG PARK BRAKE REL SW VOLT REF PARK BRAKE SW SIG PARK BRAKE SW SPLY VOLT PARK BRAKE SWITCH (LOWER LEFT SIDE OF DASH) PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RADIO RED/BLU WIRE RED/PPL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SEAT BELT IND SERIAL DATA SERIAL DATA 2 SW LOW REF TIRE PRESSURE IND UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/PPL WIRE YEL WIRE YEL/RED 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