Sure would help to know what car, but if it is the 96 SL you might want to see if the network shuts down. I don't think it has a body network in 96 but it does have CAN and all the controllers are hooked to battery power.

See: http://www.babcox.com/editorial/ic/ic030538.htm

__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician