Fuel Gauge Inaccurate or Inoperative

Diagnostic Chart (Part 1 Of 2):

Diagnostic Chart (Part 2 Of 2):

DIAGNOSTIC AIDS
^ Ensure that the fuel level is in the same range as the customer concern.
^ An access panel to the fuel sender assembly is in the trunk.
^ For intermittent diagnosis, refer to Testing for Intermittent and Poor Connections in Diagrams.
^ Refer to Fuel Level Specifications in order to verify the correct fuel level sender readings. The fuel level percent parameter is available on the scan tool in the PCM EVAP data list.

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