Lumbar circuit for BMW Z4 E89 facelift (2013-2017)
Lumbar circuit
BLK WIRE
BLK/YEL WIRE
BLU/YEL WIRE
BRN WIRE
DRIVER'S LUMBAR SUPPORT SWITCH
DRIVER'S LUMBAR SUPPORT VALVE BLOCK
DRIVER'S SEAT VACUUM PUMP
FUSE 20
GRY WIRE
GRY/BLK WIRE
JUNCTION BOX
PASSENGER'S LUMBAR SUPPORT SWITCH
PASSENGER'S LUMBAR SUPPORT VALVE BLOCK
PASSENGER'S SEAT VACUUM PUMP
RED WIRE
RED/BLK WIRE
RELAY ENERGIZED
SPORT SEAT CIRCUIT
VIO WIRE