Bonneville V8-4.6L VIN Y (2004)
Power Seat Switch: Description and Operation
Lumbar Support (With RPO Code A45)
LUMBAR SWITCH
Battery positive voltage is supplied at all times to the driver seat lumbar switch from the MEM Fuse located in the rear fuse block. When the lumbar
switches are pressed they send a 12 volt signal to the MSM. The MSM then commands the lumbar motors to move in response to the switch signals.
