Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the electronic audio system with the engine running and the vehicle in 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 speaker walk-around test, audio unit self-diagnostic mode and the diagnostic tool. Reading and Clearing Diagnostic Trouble Codes Scan Tool Testing and Procedures