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Symptom: BCM - PWM DIMMING OUTPUT SHORT When Monitored and Set Condition: BCM - PWM DIMMING OUTPUT SHORT When Monitored: With the Park Lamps on. Set Condition: The BCM detects over current on a PWM Dimming Output circuit for 10 seconds. POSSIBLE CAUSES HVAC CONTROL RADIO PANEL LAMPS DRIVER CIRCUIT SHORT TO GROUND - HVAC PANEL LAMPS DRIVER CIRCUIT SHORT TO GROUND - RADIO BODY CONTROL MODULE TEST ACTION APPLICABILITY 1 NOTE: The only faults that will set this DTC are the Panel Lamps Dimmer t, erase BCM DTCs. Turn the ignition off. t, read DTCs. Does the DRBIII t display PWM DIMMING OUTPUT SHORT? All Yes → Go To 2 No → Replace the HVAC Control in accordance with the Service Infor- mation. 2 Turn the ignition on. t, erase BCM DTCs. Turn the ignition off. t, read DTCs. Does the DRBIII t display PWM DIMMING OUTPUT SHORT? All Yes → Go To 3 No → Replace the Radio in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1. 277 INSTRUMENT CLUSTER |