Circuit/System Verification
- Ignition ON, observe the scan tool ECM - Fuel Level Sensor parameter. The reading should be between 0.5-3.5 V and vary with fuel level.
- Ignition ON, perform the Instrument Cluster Gauge Sweep test with the scan tool. Verify that the fuel level gauge sweeps from its low to high position.
- If the fuel level gauge does not sweep, replace the P16 Instrument Cluster.
- Command the All Indicators test ON and OFF with the scan tool. Verify that the low fuel level indicator turns ON and OFF.
- If the low fuel level indicator always stays on or always off, replace the P16 Instrument Cluster.