Diagnostic Procedure

In order to diagnose instrument cluster function, a DRB scan tool is necessary. See appropriate BODY CONTROL MODULE article for complete diagnostic procedures and system tests. As a quick diagnosis, cluster will perform a function check immediately after ignition is switched to RUN/START position. The electronic display, odometer and transmission range indicator and all warning lamps except, high beam indicator and turn signal will illuminate for a brief period.

If cluster is not receiving CCD bus messages, cluster will appear nonfunctional except for continuously illuminated airbag and CHECK gauges indicators and NO BUS message displayed.