Car Wiring Diagrams for Independent heating circuit for BMW 3 series G20/G21 (2018-2023)

AUTOMATIC A/C CIRCUIT AUXILIARY HEATER COOLANT CHANGEOVER VALVE AUXILIARY HEATER FUEL METERING PUMP AUXILIARY HEATER RECIRCULATING PUMP BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE FUSE 54 HOT W/ INDEPENDENT AUXILIARY HEATER LEFT "C" PILLAR) RED WIRE RED/VIO WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX WHT/BRN WIRE YEL WIRE YEL/BRN WIRE