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Visual/Physical Inspection Inspect for aftermarket devices which could affect the operation of the horn system. Refer to Inspect the easily accessible or visible system components for obvious damage or conditions Perform the following if a horn buzzes or has a harsh tone. Inspect for debris in the joint where the horn fastens to the vehicle. Test the torque of the horn mounting hardware. The horn mounting hardware should be Intermittent Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Symptom List Refer to a symptom diagnostic procedure Horns Malfunction in order to diagnose the symptom. HORNS 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. Diagnostic Fault Information There are no DTCs set The control modules can communicate via the serial 2. Review the system operation in order to familiarize yourself with the system functions. Refer to Horns System Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Horns - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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