Fuel Gage Inaccurate or Inoperative - Single Tank

DIAGNOSTIC AIDS
^ Ensure that the fuel level is in the same range as the customer concern.
^ For intermittent diagnosis, refer to Testing for Intermittent and Poor Connections in Diagnostic Aids.
^ Refer to Fuel Level Specifications in order to verify the correct fuel level sender readings. The fuel level is available on the scan tool in the Fuel Tank Level Remaining (%) parameter in the PCM Enhanced EVAP Data list (gas only) or the Fuel Level Sensor (%) parameter in the Engine Data Fuel System display (6.6 L diesel only).

TEST DESCRIPTION

Fuel Gage Inaccurate Or Inoperative (Single Tank) - Steps 1-3:

Fuel Gage Inaccurate Or Inoperative (Single Tank) - Steps 4-11:

Fuel Gage Inaccurate Or Inoperative (Single Tank) - Steps 12-13:

The number below refer to the step number on the diagnostic table.
3. This step tests for high resistance in the signal circuit and the low reference circuit of the fuel level sender.
13. DTCs will be set in the PCM when you perform this diagnostic table.

For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application RPO Codes