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The BCM receives a mismatched signal between the headlamp switch headlamps OFF signal Action Taken When the DTC Sets The BCM disregards the headlamp switch input and defaults to automatic headlamp function. Conditions for Clearing the DTC The conditions for setting the DTC are no longer present. A history DTC clears after 100 malfunction-free ignition cycles. Reference Information Schematic Reference Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference Component Connector End Views Description and Operation Exterior Lighting Systems Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification Ignition ON, headlamp switch to PARK, just the park lamps should illuminate. Headlamp switch
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Lighting - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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