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Symptom: DOME SWITCH INPUT OPEN-BCM POSSIBLE CAUSES INTERMITTENT CONDITION PANEL LAMPS DIMMER SIGNAL CIRCUIT OPEN BODY CONTROL MODULE HEADLAMP SWITCH TEST ACTION APPLICABILITY 1 Turn the ignition on. t, clear all BCM DTC’s. Turn the Dome Lamps on. t, read the DTC information. Does the DRBIII t display: Dome Switch Input Open? All Yes → Go To 2 No → The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. 2 Turn the ignition off. All Yes → Go To 3 No → Repair the Panel Lamps Dimmer Signal Circuit for an open condition. 3 Turn the ignition off. All Yes → Replace the Body Control Module. Perform BODY VERIFICATION TEST - VER 1. No → Replace the Headlamp Switch. Perform BODY VERIFICATION TEST - VER 1. 733 INTERIOR LIGHTING |