BMW 3 series G20/G21 (2018-2023) relay energized Wiring diagrams

AIR CONDITIONING COMPRESSOR AUTOMATIC REAR AIR CONDITIONING OPERATING FACILITY BLK WIRE BLK/WHT WIRE BLOWER MOTOR W/ OUTPUT STAGE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/WHT WIRE CONTROL VALVE FUSE 262 GRN WIRE GRY/RED WIRE HOT W/ LEFT FRONT VENTILATION GRILLE LEFT FRONT VENTILATION TEMPERATURE SENSOR MAGNETIC COUPLING NCA WIRE REAR POWER DISTRIBUTION BOX RED WIRE RED/BLU WIRE RED/GRY WIRE RELAY ENERGIZED RIGHT FRONT VENTILATION GRILLE RIGHT FRONT VENTILATION TEMPERATURE SENSOR VIO WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

AUTOMATIC AIR RECIRCULATION CONTROL SENSOR BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE EVAPORATOR TEMPERATURE SENSOR FUSE 204 FUSE 40 GRN WIRE HOT AT ALL TIMES HOT W/ INDEPENDENT AUXILIARY HEATER LEFT FOOTWELL TEMPERATURE SENSOR REAR POWER DISTRIBUTION BOX REAR SEAT FOOTWELL TEMPERATURE SENSOR RED WIRE RED/BLU WIRE RELAY ENERGIZED RIGHT FOOTWELL TEMPERATURE SENSOR RIGHT FRONT POWER DISTRIBUTION BOX VIO WIRE WHT WIRE WHT/BRN WIRE YEL WIRE

2.0L TURBO BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLANT EXPANSION TANK SHUTOFF VALVE COOLANT TEMPERATURE SENSOR CRANKCASE COOLANT SHUTOFF VALVE DIGITAL MOTOR ELECTRONICS ELECTRIC FAN ELECTRIC FAN CUT-OFF RELAY ENGINE COMPARTMENT POWER DISTRIBUTION BOX FUSE 1 FUSE 14 FUSE 2 FUSE 3 FUSE 400 FUSE 6 FUSE 69 FUSE 70 GRN/RED WIRE GRY WIRE HEAT MANAGEMENT MODULE HOT AT ALL TIMES HOT W/ HOT W/ DME MAIN RELAY ENERGIZED HOT W/ POWER SUPPLY SENSORS/ ACTUATORS RELAY ENERGIZED HOT W/ VALVETRONIC RELAY ENERGIZED INTEGRATED SUPPLY MODULE LOW TEMPERATURE COOLANT CIRCUIT COOLANT PUMP RADIATOR OUTLET TEMPERATURE SENSOR RED WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX RIGHT SIDE OF RADIATOR) TOP RADIATOR BLIND DRIVE TURBOCHARGER COOLANT PUMP VIO WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/WHT WIRE

BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTROLLER (I DRIVE) FUSE 215 GRN WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ NCA WIRE REAR POWER DISTRIBUTION BOX RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT BASS SPEAKER RIGHT FRONT MID-RANGE SPEAKER RIGHT FRONT TWEETER VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE

BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE FRONT CENTER MID-RANGE SPEAKER FRONT CENTER TWEETER FUSE 220 GRN WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ LEFT REAR MID-RANGE SPEAKER LEFT REAR TWEETER NCA WIRE REAR POWER DISTRIBUTION BOX RED/BLU WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT REAR MID-RANGE SPEAKER RIGHT REAR TWEETER VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE

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

BLK WIRE BODY DOMAIN CONTROLLER BRN WIRE BRN/BLK WIRE CAMERA BASED DRIVER SUPPORT SYSTEMS COMPUTER DATA LINES SYSTEM ETHERNET SWITCH (LEFT KICK PANEL) FUSE 76 GRN WIRE GRN/BLK WIRE HOT W/ KAFAS CAMERA HEATING RED/BLK WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX VIO WIRE W/ ETHERNET SWITCH W/O ETHERNET SWITCH WHT WIRE WHT/RED WIRE YEL WIRE

BRN WIRE COMPUTER DATA LINES SYSTEM CONTROLLER (IDRIVE) DRIVER CAMERA SYSTEM FUSE 212 FUSE 215 GRN WIRE GRN/GRY WIRE GRN/RED WIRE HOT W/ INSTRUMENT PANEL NCA WIRE REAR POWER DISTRIBUTION BOX RED/BLK WIRE RED/VIO WIRE RED/WHT WIRE RELAY ENERGIZED W/ DRIVER CAMERA SYSTEM W/O DRIVER CAMERA SYSTEM WHT WIRE WHT/GRY WIRE WHT/RED WIRE

BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE FRONT CENTER MID-RANGE SPEAKER FRONT CENTER TWEETER FUSE 220 GRN WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ LEFT REAR MID-RANGE SPEAKER LEFT REAR TWEETER NCA WIRE REAR POWER DISTRIBUTION BOX RED/BLU WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT REAR MID-RANGE SPEAKER RIGHT REAR TWEETER VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE

BLK WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CD DRIVE CENTRAL INFORMATION DISPLAY FRONT CENTER VENTILATION GRILLE FUSE 214 FUSE 59 GRN WIRE HEAD UNIT HOT W/ HOT W/ TERMINAL MICROPHONE (W/ TELEMATICS) NCA WIRE ORG/ WIRE REAR POWER DISTRIBUTION BOX RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX USB CONNECTION VIO WIRE W/ USB HUB W/O USB HUB WHT WIRE WLAN ANTENNA YEL WIRE