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circuit tests normal, replace the door lock and side window switch. If the test lamp is always OFF, test the control circuit for a short to voltage or an 5. If all circuits test normal, test or replace the affected bulb. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Outside Rearview Mirror Courtesy Lamp Replacement Control Module References for driver or passenger door lock and side window switch FRONT FOG LAMPS MALFUNCTION Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Circuit/System Description The front fog lamp switch signal circuit is referenced from battery voltage by the BCM. When the Reference Information Schematic Reference Fog Lights Schematics Connector End View Reference Component Connector End Views Description and Operation
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Lighting - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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