Instrument Cluster

1. Verify the customer concern by operating the system in question.
2. Visually inspect the components of the instrument cluster.
- A fuel gauge which receives its signal from the fuel pump in the fuel tank, incorporating fuel anti-slosh circuitry in the Application Specific Integrated Circuit (ASIC) in the logic board that is mounted on the top of the instrument cluster.
- A speedometer with an odometer and a trip odometer, which receives its signal from the Vehicle Speed Sensor (VSS).

VISUAL INSPECTION CHART

Mechanical
- Damaged engine oil filter
- Damaged oil pump
- Damaged VSS gear
- Low engine oil level
- Stuck coolant temperature gauge needle
- Stuck oil pressure gauge needle
- Tripped Inertia Fuel Shutoff Switch (IFS)

Electrical
- Blown fuse(s) - 2(15A) or 4(l5A)
- Damaged wiring harness
- Loose or corroded connections
- Damaged VSS.
- Damaged instrument cluster

3. Verify that the following systems are working properly:
- Charging system.
- Fuel system.
- Engine oiling system.
- Engine cooling system.
- Vehicle speed system.

4. Check the wiring harness for obvious signs of shorts, opens, bad connections, or damage.
5. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures