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Home >> Jeep >> 2003 >> Grand Cherokee 2WD V8-4.7L >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Instrument Cluster / Carrier >> Testing and Inspection >> Component Tests >> Cluster Illumination Diagnosis

Cluster Illumination Diagnosis

CLUSTER ILLUMINATION DIAGNOSIS
On models equipped with a base version of the instrument cluster, the EMIC has several incandescent illumination lamps that are illuminated whenever the exterior lighting is turned On. If the problem being diagnosed is a single inoperative illumination lamp, be certain that the bulb and bulb holder unit are properly installed in the instrument cluster electronic circuit board. If no installation problems are found replace the faulty bulb and bulb holder unit. If all of the cluster illumination lamps are inoperative, the most reliable, efficient, and accurate means to diagnose the cluster illumination function of the instrument cluster requires the use of a DRBIII scan tool. Refer to the appropriate diagnostic information.