Car Wiring Diagrams for Defoggers circuit for GMC Sierra IV (2018-2022)

AUXILIARY BATTERY FUSE BLOCK BLK WIRE BLK/WHT WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN WIRE GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND UPPER LEFT SIDE OF DASH) HVAC CONTROLS LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER RLY CTRL REAR DEFOGGER SWITCH RED/YEL WIRE UNDERHOOD FUSE BLOCK