Operation CHARM: Car repair manuals for everyone.

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 PCM EVAP data list.

TEST DESCRIPTION

Steps 1 - 6:




Steps 7 - 13:




The numbers below refer to the step numbers in the diagnostic table.
3. This step tests for a high resistance in the signal circuit and the sensor ground circuit of the fuel level sensor.
13. DTCs will set in the powertrain control module (PCM) when you perform this diagnostic table.