Convertible Top Module (Cvm Ii) - BMW 1999-2005 M3 Service Manual

Convertible Top
Convertible top electronic control module (CVM II)
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Convertible Top Module (CVM II)

The CVM II is installed in the left rear of
the car behind the side trim (next to the
seat). It contains the processing,
controlling and monitoring electronics for
top operation.
The CVM II communicates with the
General Module (GM V) over the K-bus
for operation of top storage cover and
windows.
The CVM II is fully self-diagnostic and is
capable of storing monitored faults.
Fault code access and diagnosis is
carried out over the K-bus with BMW
diagnostic scan tools DIS or MoDiC.
2/25/2009 11:05 PM