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

BODY DOMAIN CONTROLLER BRN WIRE ELECTROMECHANICAL POWER STEERING ENGINE COMPARTMENT POWER DISTRIBUTION BOX FUSE 210 FUSE 401 GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES PNK/BLU WIRE REAR POWER DISTRIBUTION BOX RED WIRE RELAY ENERGIZED STEERING TORQUE SENSOR

AIR CONDITIONING BLK WIRE BLU WIRE BLU/RED WIRE BODY DOMAIN CONTROLLER BRN WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER THIGH SUPPORT HEATING DRIVER'S SEAT BACKREST HEATING DRIVER'S SEAT HEATING ELECTRONICS DRIVER'S SEAT SURFACE HEATING FRONT PASSENGER SEAT HEATING ELECTRONICS FRONT PASSENGER SEAT OCCUPANCY DETECTION EVALUATION ELECTRONICS FRONT PASSENGER SEAT OCCUPANCY DETECTION SEAT CUSHION HEATER/SENSOR FRONT PASSENGER THIGH SUPPORT HEATING FRONT PASSENGER'S SEAT BACKREST HEATING FUSE 48 FUSE 52 GRN WIRE GRN/VIO WIRE GRY WIRE NCA WIRE REAR DRIVER'S SIDE SEAT HEATING MODULE REAR PASSENGER'S SIDE SEAT HEATING MODULE RED WIRE RED/GRN WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX VIO WIRE W/ EXTENDABLE THIGH SUPPORT W/O EXTENDABLE THIGH SUPPORT WHT WIRE YEL WIRE

BLK WIRE BRN WIRE ELECTRONICS TOUCH DETECTION FUSE 57 GRN/BLU WIRE HEATED STEERING WHEEL SWITCH LEFT MULTI-FUNCTION STEERING COLUMN SWITCH CLUSTER NCA WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX STEERING COLUMN SWITCH CLUSTER STEERING WHEEL HEATER STEERING WHEEL MODULE VIBRATION ACTUATOR

BLK WIRE BODY DOMAIN CONTROLLER BRN WIRE BRN/WHT WIRE FANFARE HORN BUTTON FUSE 1 FUSE 39 HOT AT ALL TIMES HOT W/ BI-STABLE RELAY ENERGIZED RED WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT POWER DISTRIBUTION BOX STEERING COLUMN SWITCH CLUSTER SUBWOOFER FANFARE HORN TRANSMISSIONS SYSTEM TWEETER FANFARE HORN WHT/VIO WIRE YEL WIRE

BLU/WHT WIRE BRN WIRE BRN/ORG WIRE DRIVER LUMBAR SUPPORT/ BACKREST WIDTH ADJUSTMENT VALVE BLOCK DRIVER'S SEAT LUMBAR SUPPORT SWITCH DRIVER'S SEAT PNEUMATIC PUMP DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK FRONT PASSENGER LUMBAR SUPPORT SWITCH FRONT PASSENGER LUMBAR SUPPORT/ BACKREST WIDTH ADJUSTMENT VALVE BLOCK FRONT PASSENGER SEAT PNEUMATIC PUMP FUSE 64 FUSE 65 PASSENGER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK RED WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX W/ ELECTRICAL SEAT ADJUSTMENT W/ MEMORY W/O ELECTRICAL SEAT ADJUSTMENT W/O MEMORY WHT/RED WIRE WHT/YEL WIRE

BLU/WHT WIRE BRN WIRE BRN/ORG WIRE DRIVER LUMBAR SUPPORT VALVE BLOCK DRIVER'S SEAT LUMBAR SUPPORT SWITCH DRIVER'S SEAT PNEUMATIC PUMP DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK FRONT PASSENGER LUMBAR SUPPORT SWITCH FRONT PASSENGER LUMBAR SUPPORT VALVE BLOCK FRONT PASSENGER SEAT PNEUMATIC PUMP FUSE 64 FUSE 65 PASSENGER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK RED WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX W/ ELECTRICAL SEAT ADJUSTMENT W/ MEMORY W/O ELECTRICAL SEAT ADJUSTMENT W/O MEMORY WHT/RED WIRE WHT/YEL WIRE

BLK WIRE BLU WIRE BRN WIRE FRONT PASSENGER SEAT ANGLE ADJUSTMENT DRIVE FRONT PASSENGER SEAT BACKREST ANGLE ADJUSTMENT DRIVE FRONT PASSENGER SEAT FORWARD/ BACK SEAT ADJUSTMENT FRONT PASSENGER SEAT HEADREST HEIGHT ADJUSTMENT DRIVE FRONT PASSENGER SEAT HEIGHT ADJUSTMENT DRIVE FUSE 55 GRN WIRE GRY WIRE PASSENGER SIDE SEAT ADJUSTMENT SWITCH BLOCK RED WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX VIO WIRE WHT WIRE YEL WIRE

AIR CONDITIONING BLK WIRE BODY DOMAIN CONTROLLER BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SEAT HEATING ELECTRONICS FRONT PASSENGER SEAT HEATING ELECTRONICS FUSE 269 GRN/VIO WIRE GRY WIRE HOT W/ REAR DRIVER'S SIDE BACKREST HEATING REAR DRIVER'S SIDE SEAT CUSHION HEATING REAR DRIVER'S SIDE SEAT HEATING MODULE REAR PASSENGER'S SIDE BACKREST HEATING REAR PASSENGER'S SIDE SEAT CUSHION HEATER REAR PASSENGER'S SIDE SEAT HEATING MODULE REAR POWER DISTRIBUTION BOX RED/YEL WIRE RELAY ENERGIZED VIO WIRE WHT WIRE YEL WIRE

BRN WIRE DRIVER LUMBAR SUPPORT/ BACKREST WIDTH ADJUSTMENT VALVE BLOCK DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH DRIVER'S SEAT PNEUMATIC PUMP DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK FRONT PASSENGER LUMBAR SUPPORT/ BACKREST WIDTH ADJUSTMENT VALVE BLOCK FRONT PASSENGER SEAT BACKREST WIDTH ADJUSTMENT SWITCH FRONT PASSENGER SEAT PNEUMATIC PUMP FUSE 64 FUSE 65 PASSENGER SIDE SEAT ADJUSTMENT SWITCH BLOCK RED WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX W/ ELECTRICAL SEAT ADJUSTMENT W/ MEMORY W/O ELECTRICAL SEAT ADJUSTMENT W/O MEMORY WHT/RED WIRE YEL/BLU WIRE YEL/WHT WIRE

BRN WIRE DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK DRIVER'S SEAT PNEUMATIC PUMP DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK FRONT PASSENGER SEAT BACKREST WIDTH ADJUSTMENT SWITCH FRONT PASSENGER SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK FRONT PASSENGER SEAT PNEUMATIC PUMP FUSE 64 FUSE 65 PASSENGER SIDE SEAT ADJUSTMENT SWITCH BLOCK RED WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX W/ ELECTRICAL SEAT ADJUSTMENT W/ MEMORY W/O ELECTRICAL SEAT ADJUSTMENT W/O MEMORY WHT/RED WIRE YEL/BLU WIRE YEL/WHT WIRE