Fuel Gage Inaccurate or Inoperative - Dual Tanks

DIAGNOSTIC AIDS

^ Verify that the fuel level is in the same range as the customer concern.
^ For intermittent diagnosis, refer to Testing for Intermittent and Poor Connections.
^ Use the fuel level sensor resistance to verify the fuel level sensor operation. When the fuel tank is empty, the fuel level sensor resistance is approximately 40 ohms. When the fuel tank is full the fuel level sensor resistance is approximately 250 ohms.

TEST DESCRIPTION

The numbers below refer to the step numbers on the diagnostic table.

2 This step tests for a malfunction in the fuel level sensor.
3 This step tests for a malfunction in the fuel level sensor signal circuit of the fuel balance module.
11 This step tests for a malfunction in the fuel level sensor signal circuit of the PCM.
20 DTCs will set in the PCM when you perform this diagnostic table.

Steps 1-4:

Steps 5-13:

Steps 14-20: