Initial Inspection and Diagnostic Overview

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical and electrical damage.

Visual inspection Chart

Mechanical
^ Damaged engine lubricating system
^ Low engine oil level
^ Damaged speedometer drive gear

Electrical
^ Blown fuse
^ Damaged miniature bulb
^ Damaged wiring harness
^ Loose or corroded connections
^ Damaged vehicle speed sensor
^ Damaged instrument cluster printed circuit

3. If the fault is not visually evident, verify the symptom and proceed to Symptom Chart. Symptom Related Diagnostic Procedures