Fuel Gage Inaccurate or Inoperative

FUEL GAGE INACCURATE OR INOPERATIVE

DIAGNOSTIC AIDS
- Ensure that the fuel level is in the same range as the customer concern.
- For intermittent diagnosis, refer to Diagnostic Aids for Circuit Testing and Wiring Repair procedures.
- Refer to Fuel Level Specifications in order to verify the correct fuel level sensor readings. The Fuel Level parameter is available on the scan tool in the Powertrain Fuel and Emissions data list. The Fuel Gage Position parameter is available in the Body Control Module Accessory data list.

TEST DESCRIPTION

Steps 1 - 5:

Steps 6 - 13:

Steps 14 - 15:

The numbers below refer to the step number on the diagnostic table.
3. This step tests for a high resistance in the signal circuit and the low reference circuit of the fuel level sensor.
15. DTCs will be set in the engine control module (ECM)/powertrain control module (PCM) when you perform this diagnostic table.