Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

INSPECTION AND VERIFICATION

1. Verify the customer concern by operating the electronic audio system with the engine running and the vehicle in and out of motion.


Visual Inspection Chart:






2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the fault is not visually evident, proceed to the speaker walk-around test and audio unit self-diagnostic mode. Speaker Walk-Around Test Audio Unit Self-Diagnostic Mode