Lumbar circuit for BMW M3 F80 (2014-2018)
Lumbar circuit
BLK WIRE
BLK/BLU WIRE
BLK/WHT WIRE
BLK/YEL WIRE
BRN WIRE
BRN/YEL WIRE
DRIVER LUMBAR SUPPORT SWITCH
DRIVER'S LUMBAR SUPPORT VALVE BLOCK
DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK
DRIVER'S SEAT PNEUMATIC PUMP
DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK
FRONT PASSENGER LUMBAR SUPPORT SWITCH
FRONT PASSENGER'S LUMBAR SUPPORT VALVE BLOCK
FRONT PASSENGER'S SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK
FRONT PASSENGER'S SEAT PNEUMATIC PUMP
FRONT PASSENGER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK
FRONT POWER DISTRIBUTION BOX
FUSE 27
LEFT FOOTWELL)
RED WIRE
RELAY ENERGIZED
W/ ELECTRIC SEAT ADJUSTMENT W/O ELECTRIC SEAT ADJUSTMENT
YEL WIRE