Fuel Gauge Inaccurate or Inoperative (Single Tank)

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.
^ For intermittent diagnosis, refer to Testing for Intermittent and Poor Connections in Wiring Systems.
^ Refer to Fuel Level Specifications in order to verify the correct fuel level sender readings. The Fuel Level (%) parameter is available on the scan tool in the PCM Enhanced 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.