Operation CHARM: Car repair manuals for everyone.

Fasten Safety Belt Indicator

The seat belt data is received from the BCM via the class II serial data line. The BCM sends a signal in order to turn on the seat belt warning indicator under the following 2 conditions occur:
^ The BCM detects that the ignition switch is in the RUN position.
^ The seat belt has not been latched. Refer to Body Control Module.