Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the audio system and the Video Cassette Player (VCP) (if equipped) with the engine running and the vehicle in and out of motion.
2. Visually inspect for the obvious signs of mechanical and electrical damage.


Visual Inspection Chart:






3. If fault is visually evident, proceed to the symptom chart. Symptom Related Diagnostic Procedures
4. If the fault is not visually evident, proceed to the speaker walk-around test and the DM100i Self-Diagnostic Mode. Speaker Walk-Around Test DM100i Self-Diagnostic Mode