GMC Sierra IV facelift (2022-2024) horns system Wiring diagrams

AIR CONDITIONING SYSTEM AUTOSAR CAN BUS (+) 2 SERIAL DATA AUXILIARY DEVICE 2 SW VOLTAGE BLK WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DRIVER FRONT SIDE DOOR LATCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IMMO ANT LO SIG IMMO ANT SIG [+] INSTRUMENT PANEL CLUSTER CONTROL MODULE INTR PASSIVE ENTRY ANT 1 HI SIG INTR PASSIVE ENTRY ANT 1 LO SIG LF DR AJAR LF DR LOCK ACTR LOCK CTRL LF DR OPEN SW SIG LF EXTR DR HNDL SW UNLK SIG LIN BUS 3 LOCK ACTR UNLK CTRL 1 LOCK ACTR UNLK LOW CTRL 2 LOGIC LOW FREQUENCY CONSOLE ANTENNA LR DR LOCK ACTR LOCK CTRL PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSIVE ENTRY LF ANT SIG HI PASSIVE ENTRY LF ANT SIG LO PASSIVE ENTRY RF DR ANT SIG HI PASSIVE ENTRY RF DR ANT SIG LO R CLOSURE KYLS ENTRY ANT HI SIG R CLOSURE KYLS ENTRY ANT LO SIG RF DR AJAR RF DR EXTR SW UNLK SIG RF DR LOCK ACTR LOCK CTRL RR DR LATCH ACTR LOCK CTRL SECURITY IND SECURITY IND CTRL SENS LOW REF SUNLOAD, AMBIENT LIGHT, SECURITY INDICATOR SENSOR SW SIG VIO WIRE VIO/GRY WIRE VIO/WHT WIRE W/O FRONT COMPARTMENT CONSOLE WHT WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/GRN WIRE

ABS/TRACTION CTRL HILL DESCENT CTRL SW SIG AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM SHIFT INTERLOCK SYSTEM ANTI-LOCK BRAKES SYSTEM AUTO HIGH BEAM ASSIST SW SIG BLK/GRY WIRE BLK/YEL WIRE BLOWER SPEED FEEDBACK SIG BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BODY CTRL MODULE LIN BUS 12 BRK TRANS SHIFT INTERLOCK SOL ACTR CTRL BRN WIRE BRN/BLK WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE CTRL SET/COAST/RESUME/ACCELERATE SW SIG DISTANCE SENSING CRUISE CTRL GAP UP/DOWN SW SIG DOME/READING LAMP ENABLE SIG DRIVER MODE 1 SW SIG ENDGATE REL SW ANALOG SIG INTERIOR GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HAZARD WARNING SW SIG HEADLAMP SW FLASH SIG HEADLAMP SW OFF SIG HEADLAMP SW ON SIG HEADLAMP SW PARK LAMP SIG HEADLAMP SW REF HEADLAMP SW SIG HEADLIGHTS SYSTEM HIGH BEAM SELECT SW HIGH BEAM SIG HORN SW SIG HORNS SYSTEM IGN MODE SW ACCESSORY LED SIG IGN MODE SW MODE VOLT IGNITION MODE SW START LED SIG LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING IND CTRL LEFT TURN SIG SW SIG MAJOR ENDGATE RELEASE SW SIG INTERIOR NAVIGATION SYSTEM PARK LOCK SOLENOID ACTUATOR CTRL POWER DISTRIBUTION SYSTEM REAR PARKING ASSIST DISABLE LED SIG REAR PARKING ASSIST DISABLE SIG RIGHT TURN SIG SW SIG SENS LOW REF SHIFT INTERLOCK SYSTEM STARTING/CHARGING SYSTEM STOP/START IND CTRL STOP/START SW SIG TAP UP/TAP DOWN SW SIG TAP UP/TAP DOWN SW SIG 2 ENHANCED DRIVER MODE 2 SW SIG TRAILER BRAKE APPLY SIG TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLK WIRE VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/WHT WIRE

A/C COMPRESSOR SOL VLV CTRL AIR CONDITIONING SYSTEM AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK/BRN WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BODY CONTROL MODULE LIN BUS 11 BODY CTRL MOD LIN BUS 3 BODY CTRL MODULE LIN BUS 16 BODY CTRL MODULE LIN BUS 2 BODY CTRL MODULE LIN BUS 4 BODY CTRL MODULE LIN BUS 8 BODY CTRL MODULE LIN BUS 9 BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DEFOGGER SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS ENDGATE REL SW DISCRETE SIG EXTR (PINS: 28 TO 29 NOT USED) GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HOOD STATUS B SIG HORN RELAY CTRL HORNS SYSTEM LED BACKLIGHT DIMMING CTRL 1 LEFT FRONT DOOR LOCK ACTR LOCK CTRL LEFT FRONT DOOR OPEN SW SIG LEFT FRONT EXTR DOOR HANDLE SW UNLOCK SIG LEFT MINOR ENDGATE AJAR SIG LEFT REAR DOOR LOCK ACTR LOCK CTRL LOCK ACTUATORS UNLOCK CTRL 1 LOCK ACTUATORS UNLOCK CTRL 2 MAJOR ENDGATE RELEASE SW SIG EXTR MINOR ENDGATE RELEASE SW DISCRETE SIG EXTR PASSIVE ENTRY LEFT FRONT ANT SIG HI PASSIVE ENTRY LEFT FRONT ANT SIG LO PASSIVE ENTRY RIGHT FRONT DOOR ANT SIG HIGH PASSIVE ENTRY RIGHT FRONT DOOR ANT SIG LOW POWER DISTRIBUTION SYSTEM REAR CLOSURE PASSIVE ENTRY ANTENNA HIGH SIG REAR CLOSURE PASSIVE ENTRY ANTENNA LOW SIG REAR DEFOGGER RLY CTRL RETAINED ACCESSORY POWER CTRL RIGHT FRONT DOOR EXTR SW UNLOCK SIG RIGHT FRONT DOOR LOCK ACTR LOCK CTRL RIGHT REAR DOOR LOCK ACTUATOR LOCK CTRL TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

AIR CONDITIONING SYSTEM AUTOSAR CAN BUS (+) 2 SERIAL DATA AUXILIARY DEVICE 2 SW VOLTAGE BLK WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DRIVER FRONT SIDE DOOR LATCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IMMO ANT LO SIG IMMO ANT SIG [+] INSTRUMENT PANEL CLUSTER CONTROL MODULE INTR PASSIVE ENTRY ANT 1 HI SIG INTR PASSIVE ENTRY ANT 1 LO SIG LF DR AJAR LF DR LOCK ACTR LOCK CTRL LF DR OPEN SW SIG LF EXTR DR HNDL SW UNLK SIG LIN BUS 3 LOCK ACTR UNLK CTRL 1 LOCK ACTR UNLK LOW CTRL 2 LOGIC LOW FREQUENCY CONSOLE ANTENNA LR DR LOCK ACTR LOCK CTRL PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSIVE ENTRY LF ANT SIG HI PASSIVE ENTRY LF ANT SIG LO PASSIVE ENTRY RF DR ANT SIG HI PASSIVE ENTRY RF DR ANT SIG LO R CLOSURE KYLS ENTRY ANT HI SIG R CLOSURE KYLS ENTRY ANT LO SIG RF DR AJAR RF DR EXTR SW UNLK SIG RF DR LOCK ACTR LOCK CTRL RR DR LATCH ACTR LOCK CTRL SECURITY IND SECURITY IND CTRL SENS LOW REF SUNLOAD, AMBIENT LIGHT, SECURITY INDICATOR SENSOR SW SIG VIO WIRE VIO/GRY WIRE VIO/WHT WIRE W/O FRONT COMPARTMENT CONSOLE WHT WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/GRN WIRE