GMC Terrain II facelift (2021-2024) blu/vio Wiring diagrams

BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO 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/VIO 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 RED/VIO 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 VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

ABS IND. ABS/TCS HILL DESCENT CTRL SW SIG BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE BOOSTER VACUUM SENSOR BRAKE FLUID LEVEL SWITCH BRAKE IND BRAKE PEDAL POSITION SENSOR BRAKE POSITION BRAKE POSITION SENS SIG BRAKE VACUUM BRAKE VACUUM SENS SIG BRN WIRE CHEVROLET COMPUTER DATA LINES SYSTEM CONTROL IND CRUISE CRUISE CONTROL SWITCH DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ESC IND ESC OFF GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRY/RED WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (+) (1) IND INSTRUMENT CLUSTER LOGIC NCA WIRE RIGHT REAR WHEEL SPEED SENSOR SIG GND TCS OFF UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

ACCESSORY WAKEUP SERIAL DATA BACKUP LAMP CTRL BACKUP LAMP RELAY CTRL BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG CURRENT SENS CTRL DOME LAMP OFF INDICATOR CTRL DOOR LOCK CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DR LCK ACTUATOR UNLOCK CTRL DR LOCK ACTUATOR LOCK CTRL DRIVER MODE 1 INDICATOR CTRL DRIVER MODE 2 INDICATOR CTRL DRIVER MODE 4 INDICATOR CTRL DRIVER MODE 5 INDICATOR CTRL DRL RELAY CTRL EXTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM FRONT FOG LAMP CONTROL FRONT TURN SIG LAMP FEEDBACK SIG FRONT WINDSHIELD WIPER SW HIGH SIG LIFT GLASS/REAR COMPT LID MTR RELEASE CTRL GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEMS HI SPEED GMLAN DATA BUS (+) 1 HI SPEED GMLAN DATA BUS (-) 1 RIGHT FRONT DRL CONTROL HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INADVERTENT POWER CTRL INSTRUMENT CLUSTER SYSTEM INTERIOR LAMP CTRL INTERIOR LAMP DEFEAT SW SIG KEY CAPTURE/COLUMN LOCK SHIFT POS SIG LED BACKLIGHT DIMMING CTRL 1 LEFT HEAD LAMP HIGH BEAM CONTROL LEFT HEADLAMP RELAY CONTROL LF HDLP LO BEAM CTRL LF TURN SIG LAMP CTRL LH PARK LAMP CTRL 2 LH STOP/TAIL LAMP FEEDBACK SIG LIFTGATE AJAR SWITCH SIG 1 LOCAL INTERCONNECT NETWORK BUS 2 LOCAL INTERCONNECT NETWORK BUS 3 LR TURN SIG LAMP CTRL PARK LAMP RELAY CONTROL PARK LOCK SOLENOID CTRL POWER DISTRIBUTION SYSTEM PUSH BUTTON START CHALLENGE ACTIVE REAR COMPT LID LAMP CTRL REAR LICENSE LAMP CTRL REAR WINDOW WASHER RELAY CTRL REAR WIPER MOTOR RELAY COIL CTRL RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RF TURN SIG LAMP CTRL RF TURN SIG LAMP FEEDBACK SIG RH HDLP LO BEAM CTRL RH PARK LAMP CTRL 2 RH STOP/TAIL LAMP FEEDBACK SIG RIGHT REAR TURN SIG LAMP CTRL RR CLOSURE HANDLE SW OPEN SIG LINEAR INTERCONNECT NETWORK DATA BUS 1 RUN/CRANK RELAY COIL CTRL SERIAL DATA COMM ENABLE SHIFT INTERLOCK, TRANSMISSIONS SYSTEMS SIDE MARKER/LICENSE LAMP CTRL STARTING/CHARGING SYSTEM STOP LAMP RELAY COIL CTRL TRAILER BRAKE APPLY SIG TRANS SHIFT LEVER POSITION IND 2 CTRL TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RELAY CTRL WINDSHIELD WIPER MTR PARK SW SIG WINDSHIELD WIPER MTR RLY COIL CTRL WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE

BATT POS VOLT BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DOWN DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT MEMORY CONTROL MODULE FORWARD SW SIG FRONT VERTICAL DWN SW SIG FRONT VERTICAL UP SW SIG FWD RWD GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE HORIZONTAL MTR SENS SIG HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT "C" PILLAR) LIN BUS 1 LOW SPEED GMLAN SERIAL DATA LR HAPTIC SEAT MTR CTRL MEM SEAT SW SET SIG MEM SEAT SW SIG (1) NAVIGATION SYSTEM REAR BODY FUSE BLOCK REAR VERTICAL DWN SW SIG REAR VERTICAL UP SW SIG REARWARD SW SIG RECLINE FORWARD SW SIG RECLINE MTR POS SENS SIG RECLINE REARWARD SW SIG RED/BRN WIRE RED/GRN WIRE RR HAPTIC SEAT MTR CTRL RWD SEAT POSITION SENS HI REF 2 UP DOWN VERTICAL MTR POS SENS SIG VERTICAL MTR SENS SIG WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

AJAR AMBIENT LIGHT/ SUNLOAD SENSOR BLK WIRE BLK/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/YEL WIRE BUS 3 BUS 4 COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH FUEL FILL DOOR LOCK ACTUATOR GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE HVAC CONTROL MODULE LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR LOGIC LOW REF LR DR AJAR NETWORK NETWORK BUS 3 PASS DR PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT/VIO WIRE

AMBIENT LIGHT/ SUNLOAD SENSOR BLK WIRE BLK/GRN WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/YEL WIRE BUS 3 COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR MODULE DRIVER WINDOW SWITCH ENGINE CONTROL MODULE ENGINE HOOD SWITCH FUEL FILLER DOOR LOCK ACTUATOR GRN WIRE GRN/YEL WIRE GROUND GRY WIRE HOOD OPEN SW SIG HVAC CONTROL MODULE LF DR AJAR LOGIC LOW REF NCA WIRE NETWORK NETWORK BUS 3 SERIAL DATA (+) (3) STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SENS SIG BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR MODULE ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LR DR AJAR SW SIG NETWORK BUS 3 NETWORK BUS 4 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 PASS DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RED/VIO WIRE UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/RED WIRE

"CHECK ENGINE" IND CTRL AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SENSOR EXCEPT CALIFORNIA FUEL LEVEL SENSOR FUEL PUMP DRIVER CONTROL MODULE FUEL PUMP, LEVEL SENSOR ASSEMBLY GMLAN SERIAL DATA (+) 7 GMLAN SERIAL DATA (+) 7 AIR TEMPERATURE SENS SIG GRN/GRY WIRE GRY WIRE HIGH SPEED GMLAN SERIAL DATA (+) 7 LOGIC LOW REF LOW REF 2 NETWORK BUS 4 OIL PRESSURE SEN LOW REF OIL PRESSURE SENS SIG PRIMARY FUEL LEVEL SENS SIG PRIMARY FUEL LEVEL SENSOR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SEC FUEL LEVEL SENS SIG SECONDARY FUEL LEVEL SENSOR SENS 2 LOW REF UNDERHOOD FUSE BLOCK WHT WIRE WHT/RED WIRE YEL/BRN WIRE

B+ VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE CHEVROLET COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLK WIRE GRN/VIO 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 LH PARK BRK MTR APPLY CTRL LIN SERIAL DATA BUS 2 LOGIC PARK BRAKE APPLY SW VOLT REF PARK BRAKE SW SPLY VOLT PARK BRAKE SWITCH PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK SW SIG PARK IND RED/VIO WIRE RED/WHT WIRE RH PARK BRAKE MOTOR LOW REF LH PARK BRK MTR LOW REF RH PARK BRK MTR APPLY CTRL RIGHT PARK BRAKE ACTUATOR SERVICE PARK BRAKE IND UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

BLK WIRE BLK/GRY WIRE BLU WIRE BLU/VIO WIRE BRN/BLU WIRE BRN/GRY WIRE DELAY SWITCH GRN/WHT WIRE GRY WIRE GRY/VIO WIRE HI LO HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK MIST OFF INT REAR WINDOW WASHER PUMP REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WIPER RELAY REAR WIPER/WASHER SWITCH RED/BRN WIRE UNDERHOOD FUSE BLOCK VIO WIRE WASHER SWITCH WHT/BLK WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER SWITCH WINDSHIELD WIPER/WASHER SWITCH YEL WIRE YEL/BLU WIRE