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DTC B3884 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. DTC Descriptor DTC B3884 00 Center High Mounted Stop Lamp (CHMSL) Circuit Diagnostic Fault Information Circuit/System Description When the brake pedal is applied, the brake pedal switch normally closed contact signal circuit Conditions for Running the DTC The ignition is ON. The stop lamps must be commanded ON. Conditions for Setting the DTC Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance CHMSL Relay Control B3884 00 1 2 - CHMSL Control 1 1 2 - CHMSL Relay Control - 1 - - CHMSL Ground - 1 - - 1. Center High Mounted Stop Lamp (CHMSL) Inoperative 2. Center High Mounted Stop Lamp (CHMSL) Always On
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Lighting - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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