Principles of Operation: Notes
WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
The instrument cluster is a hybrid electronic instrument cluster (HEC). The instrument cluster gauges, warning indicators, and message center displays are either controlled and driven directly through hardwired circuitry, or the information is requested and received through the standard corporate protocol (SCP). The instrument cluster has self-test diagnostics capabilities using the diagnostic tool.