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Symptom: PANEL DIMMER OPEN When Monitored and Set Condition: PANEL DIMMER OPEN When Monitored: When the ignition is on. Set Condition: The Instrument Cluster monitors the panel lamps dimmer signal circuit for a resistance value between 0.0 ohms and approximately 3,650 ohms. When the cluster POSSIBLE CAUSES INTERMITTENT CONDITION PANEL LAMPS DIMMER SIGNAL CIRCUIT SHORT TO VOLTAGE PANEL LAMPS DIMMER SIGNAL CIRCUIT OPEN MULTI- FUNCTION SWITCH MULTI- FUNCTION SWITCH GROUND CIRCUIT OPEN INSTRUMENT CLUSTER TEST ACTION APPLICABILITY 1 With the DRBIII t, erase DTC’s. Turn the Park Lamps on. t, read DTC’s. Does the DRBIII t display Panel Dimmer Open? All Yes → Go To 2 No → The condition is not present at this time. Monitor DRBIIIt parameters while wiggling the related wire harness. Refer to any 2 Turn the ignition off. All Yes → Repair the Panel Lamps Dimmer Signal circuit for a short to voltage. No → Go To 3 150 INSTRUMENT CLUSTER |