Initial Inspection and Diagnostic Overview

INSPECTION AND VERIFICATION

NOTE: The Vehicle Navigation Radio is referred to as VNR.

1. Verify the customer concern by operating the audio system and the video system (if equipped) 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 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 audio unit self-diagnostic mode. Speaker Walk-Around Test Audio Unit Self-Diagnostic Mode