Instrument Cluster / Carrier: Testing and Inspection

In order to diagnose the instrument cluster function, a scan tool (DRB) and the proper Body Diagnostic Procedures are required.

As a quick diagnosis, the cluster will perform a function check immediately after the ignition is switched to the RUN/START position. All transmission range LEDs and warning lamps, except cruise, will illuminate for a brief period. If the cluster is not receiving CCD bus messages, the cluster will appear non- functional except for the continuously illuminated airbag indicator.

If the cluster is not receiving CCD bus messages, refer to the pre-diagnostic test described in Body Diagnostic Procedures.

If the diagnostic procedure determines that a replacement of an instrument cluster component is required, refer to the Removal and Installation Procedures.

NOTE: This system is an integrated part of the Body Control System. To test the system SEE Powertrain Management/Computers and Control Systems/Body Control Module/Testing and Inspection. Testing and Inspection