Overhead Trip Computer System

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

Mechanical
- Damaged overhead trip computer.
- Damaged Vehicle Speed Sensor (VSS).
- Damaged compass sensor module or loose mounting.
- Damaged PCM.

Electrical
- Blown fuse:
- 5A fuse 2.
- 5A fuse 6.
- Damaged wiring harness.
- Loose or corroded connections.

3. If the fault is not visually evident, perform the Trip Computer Self-Test. Trip Computer Self-Test