Fuel Level Sending Unit Open or Shorted

Tests 1 - 4:

Tests 5 - 9:

Tests 10 - 12:

SYMPTOM
FUEL LEVEL SENDING UNIT OPEN OR SHORTED

WHEN MONITORED
With the ignition ON.

SET CONDITION
The BCM Detects voltage on the fuel level input above 10.0 volts or below 0.25 volts.

POSSIBLE CAUSES
- Fuel level sensor signal circuit short to voltage
- Instrument cluster self test
- Fuel gauge displays empty
- Fuel level sensor ground circuit open
- Fuel level sensor signal circuit open
- Determine if full gauge is inaccurate
- Inspect the fuel pump module and the fuel tank
- Observe the fuel gauge
- Fuel level sensor signal circuit shorted to ground
- Visual condition not good
- Body control module
- Instrument cluster
- BCM