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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, low beam headlamps ON, turn the headlamp dimmer switch to the high beam Circuit/System Testing Ignition ON, with a scan tool perform the Display Test for the instrument panel cluster (IPC) and If the high beam indicator does not illuminate during the test or remains illuminated at all If the high beam indicator illuminates during the test, replace the BCM. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Control Module References for BCM or IPC replacement, programming, and setup. INTERIOR BACKLIGHTING MALFUNCTION (W/AN3) 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.
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Lighting - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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