GMC Hummer EV I (2021-2024) defogger system Wiring diagrams

20 21 BODY CTRL MOD LIN BUS 13 AC PWR OUTLET SW SIG AUTOSAR CAN BUS (-) 9 SER DATA BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BODY CTRL MOD LIN BUS BODY CTRL MOD LIN BUS 1 BODY CTRL MOD LIN BUS 11 BODY CTRL MOD LIN BUS 16 BODY CTRL MOD LIN BUS 3 BODY CTRL MOD LIN BUS 4 BODY CTRL MOD LIN BUS 9 BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE CARGO LMP CTRL CHILD SECURITY LK MTR LK CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG 1 DEFOGGER SYSTEM DOME/READING LP ENABLE SIG DOOR LOCKS, ANTI-THEFT SYSTEMS FRT CLOSURE AJAR SW SIG FRT CLOSURE REL EXTERIOR SW SIG GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM INSTRUMENT PANEL ACCENT LIGHTING CTRL INTERIOR LP CTRL INTERIOR PASSIVE ENTRY ANTENNA 1 HI SIG INTERIOR PASSIVE ENTRY ANTENNA 1 LOW SIG INTERIOR PASSIVE ENTRY ANTENNA 3 HI SIG INTERIOR PASSIVE ENTRY ANTENNA 3 LO SIG LED BACKLIGHT DIMMING CTRL 1 LH FRT DR LK ACTUATOR LK CTRL LH FRT DR OPEN SW SIG LH FRT EXTERIOR DR HNDL SW UNLOCK SIG LH MINOR ENDGATE AJAR SIG LR CHILD SECURITY LK ACTUATOR STATUS SIG LR DR EXTERIOR SW UNLK SIG LR DR HNDL SW SIG 2 LR DR LK ACTUATOR LK CTRL LR DR LK STATUS SIG MAJOR ENDGATE REL SW SIG EXTERIOR MINOR ENDGATE REL SW DISCRETE SIG EXTERIOR PASSIVE ENTRY LF ANTENNA SIG HI PASSIVE ENTRY RF DR ANTENNA SIG HI PASSIVE ENTRY RF DR ANTENNA SIG LOW POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM RETAINED ACCESSORY PWR CTRL RF DR EXTERIOR SW UNLK SIG RF DR HNDL SW SIG 1 RF DR LK ACTUATOR LK CTRL RH MINOR ENDGATE AJAR SIG RR CHILD SECURITY LK ACTUATOR STATUS SIG RR CLOSURE PASSIVE ENTRY ANTENNA HI SIG RR CLOSURE PASSIVE ENTRY ANTENNA LO SIG RR DEFOGGER RLY CTRL PASS ENTRY LEFT FRONT ANTENNA SIG LO RR DR EXTERIOR SW UNLOCK SIG RR DR HNDL SW SIG 2 RR DR LK STATUS SIG RR DR LO ACTUATOR LO CTRL STEP DIM BACKLIGHT TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE

BAT POS VOLT BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/VIO WIRE BRN/BLK WIRE CAN BUS (+) 4 SERIAL DATA CAN BUS (+) 4 SERIAL DATA SEAT MEMORY SW SET SIG COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER, EXTERIOR LIGHTS, NAVIGATION SYSTEMS DOWN DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRIVER SIDE OBJECT DETECTION INDICATOR FOLDING SWITCH GRN/YEL WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT SIDE VIEW DRIVER INFORMATION CAMERA LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM NCA WIRE RED/VIO WIRE RED/YEL WIRE RIGHT RWD SEAT MEMORY SW SIG 1 VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BLK WIRE BLK/GRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER, EXTERIOR LIGHTS, NAVIGATION SYSTEMS DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH EXIT GRN/BLK WIRE GRN/YEL WIRE GRY WIRE LOGIC NAVIGATION SYSTEM NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR ACTUATOR PASSENGER OUTSIDE REAR VIEW MIRROR EXTERIOR FLOOD LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR RED/VIO WIRE RIGHT SIDE VIEW DRIVER INFORMATION CAMERA SET- VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE