Instrument Cluster Self-Diagnostics
- As a quick diagnosis, instrument cluster will perform a function check immediately after ignition is switch is turned to RUN/START position. Electronic display, odometer/transmission range indicator and all warning lights EXCEPT low fuel, cruise, high beam, foglights and turn signal will light for a brief period. If cluster is not receiving PCI bus messages, cluster will appear non-functional and NO BUS will be displayed in odometer display.
- Instrument cluster self-test procedure can be initialized by pressing and holding the odometer reset button and turning ignition from lock to unlock. Instrument cluster will perform various steps to internally check operation.
- If instrument cluster is not functioning properly or not receiving PCI bus messages, see BODY CONTROL MODULES - CONCORDE, INTREPID, LHS & 300M article. If diagnostic procedure indicates replacement of instrument cluster, see INSTRUMENT CLUSTER & BEZEL under REMOVAL & INSTALLATION.