Test Description

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

3. This step tests for high resistance in the signal circuits and the low reference circuit of the fuel level senders.
13. DTCs will be set in the PCM when you perform this diagnostic table.

Fig 1: Fuel Gage Inaccurate Or Inoperative (Dual Tanks) - Diagnostic Symptom Table (Steps 1 - 5)
Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuel Gage Inaccurate Or Inoperative (Dual Tanks) - Diagnostic Symptom Table (Steps 6 - 13)
Courtesy of GENERAL MOTORS CORP.