Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The safety belt switch is hardwired to the restraint control module (RCM). The instrument cluster receives the safety belt switch status from the RCM over the communication network. The RCM signals the instrument cluster, when the safety belt is unfastened, to illuminate the safety belt warning indicator.