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

6 SPEED A/T ACCELERATOR PEDAL POSITION SENSOR AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA (-) 8 EXCEPT CALIFORNIA GMLAN GMLAN SERIAL DATA - 1 GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HI SPD INPUT SP SIG INPUT SPD SIG LOGIC NCA WIRE OUTPUT SP SIG OUTPUT SPD SIG SENS REF SER SERIAL DATA (-) (1) TRANS INTERMEDIATE SPD SIG TRANSMISSION CONTROL MODULE TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INPUT/ INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSIONS SYSTEM W/ ETRS WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE

6 SPEED A/T ACCELERATOR PEDAL POSITION SENSOR AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM EXCEPT CALIFORNIA GMLAN SERIAL DATA - 1 GRN/PPL WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE INPUT SPD SIG LOGIC LOW SIG NCA WIRE OUTPUT SPD SIG SERIAL DATA (-) (1) SIG HIGH SIG LOW SIG OUTPUT TRANS INTERMEDIATE SPD SIG TRANSMISSION CONTROL MODULE TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INPUT/ INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSIONS SYSTEM W/ ETRS WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLK/BRN WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRN/GRN WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HAZ SW LH TURN SIG HAZ SW RH TURN SIG HAZ WARNING IND LED DIMMING SIG HAZARD WARNING SWITCH HAZARD WARNING SWITCH SIGNAL HDLP SW PARK LP SIG HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT FRONT PARK LAMP LEFT FRONT TURN SIGNAL LAMP LEFT FRONT TURN SIGNAL LAMP CTRL LEFT HEADLAMP ASSEMBLY LEFT PARK LAMP CTRL 2 LEFT REAR STOP/TURN SIG LAMP CTRL LEFT STOP/TAIL LAMP FEEDBACK SIG PARK LAMP RELAY CONTROL REAR LICENSE PLATE LAMP CTRL RED/BLU WIRE RED/GRN WIRE RIGHT FRONT TURN SIGNAL LAMP CTRL RIGHT PARK LAMP CTRL 2 RIGHT REAR STOP/TURN SIG LAMP CTRL RIGHT STOP/TAIL LAMP FEEDBACK SIG STOP LAMP RELAY COIL CTRL TURN SIGNAL/ MULTI-FUNCTION SWITCH VIO WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL/BLK WIRE YEL/BLU WIRE

AUTO HEAD PARK OFF BACKUP LAMPS CIRCUIT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRK POS SENS SIG BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE CTRL ENGINE CTRL VEHICLE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM HEADLAMP SWITCH HI SPD GMLAN LEFT BACKUP LAMP LEFT INNER TAIL- LAMP LEFT LIFTGATE TAIL LAMP ASSEMBLY LEFT OUTER TAIL LAMP LEFT REAR SIDE MARKER LAMP LEFT STOP/ TURN SIGNAL LAMP LEFT STOP/TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LOGIC NCA WIRE SENS 5 VOLT REF 1 SENS LOW REF (2) SER DATA (-) 7 VIO WIRE VIO/GRY WIRE W/O 360 VIEW VISION WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

& RECEIVER ACC IGN VOLT ACTR LOCK CTRL ACTR UNLCK CTRL BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER CONSOLE FRONT KEYLESS ENTRY ANTENNA CENTER CONSOLE REAR KEYLESS ENTRY ANTENNA COMPUTER DATA LINES SYSTEM CTRL DR LOCK CTRL DRIVER DOOR LOCK SWITCH DRV DR OPEN SW SIG IGNITION MODE SWITCH CHALLENGE ACTIVE SIG GMLAN SER DATA GMLAN SER DATA (+) 1 SEC IND CTRL GMLAN SER DATA - (1) GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HI INTR ANT SIG 1 HI INTR ANT SIG 2 HI INTR ANT SIG 3 HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IGN 1 VOLT IGNITION MODE SWITCH IGNITION MODE SWITCH CHALLENGE ACTIVE SIG INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LH HDLP LO BEAM CTRL LOCK SIG LOW INTR ANT SIG 1 LOW INTR ANT SIG 2 LOW INTR ANT SIG 3 LOW REF PASS DOOR LOCK SW LOCK CTRL PASS DOOR LOCK SW UNLOCK CTRL PASSENGER DOOR LOCK SWITCH POWER DISTRIBUTION SYSTEM RAP RLY 2 COIL CTRL RCV SIG RECEIVE SIG RECEIVER CTRL RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER RH HDLP LO BEAM CTRL SW SIG 2 TRANS SIG UNLCK SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE

AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) AUTOMATIC TRANSMISSION ASSEMBLY (9-SPEED A/T) BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRAKE PEDAL POSITION SENSOR BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS LOW REF BRK POS SENS SIG COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA 1 (+) ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GRN/YEL WIRE GRY WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES IMS MODE SW LOW REF INSTRUMENT PANEL FUSE BLOCK KEY CAPTURE/COLUMN LOCK SHIFT POS SIG PARK LOCK SOL CTRL NCA WIRE PARK POSITION SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (LOWER CENTER OF DASH) RED/GRN WIRE RED/GRY WIRE SERIAL SW MODE CTRL SW MODE CTRL BACKUP TRANS PARK/NEUTRAL SIG 1 TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR VIO/BLK WIRE W/ START/STOP SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL/BLU WIRE

AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GMLAN SER DATA - (1) GRN/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IMS CTRL BACKUP IMS MODE SW LO CTRL IMS MODE SW LOW REF NCA WIRE RUN/CRANK IGN 1 VOLT SIG GND STARTER PINION SOL RLY CTRL TRANS PARK/ NEUTRAL SIG 1 TRANS PARK/NEUTRAL SIG 1 TRANSMISSION CONTROL MODULE TRANSMISSION CONTROL MODULE (9 SPEED A/T) (LEFT SIDE OF TRANSMISSION) TRANSMISSION INTERNAL MODE SWITCH UNDERHOOD FUSE BLOCK VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL/BLU WIRE YEL/VIO WIRE

AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GMLAN SER DATA - (1) GRN/YEL WIRE GRY/BRN WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IGN SW MODE CTRL BACKUP IMS MODE SW LO CTRL IMS MODE SW LO REF NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (LOWER CENTER OF DASH) RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RUN/CRANK IGN 1 VOLT SIG GND STARTER ENABLE RLY CTRL STARTER PINION SOL RLY CTRL TRANS PARK/ NEUTRAL SIG 1 TRANS PARK/NEUTRAL SIG 1 TRANSMISSION CONTROL MODULE TRANSMISSION CONTROL MODULE (9 SPEED A/T) (LEFT SIDE OF TRANSMISSION) TRANSMISSION INTERNAL MODE SWITCH UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE

B+ VOLT BATT POS VOLT 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 GRN WIRE GRN/BLK WIRE GRN/BLU 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 NCA WIRE REAR WINDOW WIPER SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RLY COIL CTRL RLY CTRL SW HIGH SIG UNDERHOOD FUSE BLOCK VIO WIRE WASHER SW SIG WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR 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

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