Test Description

The number(s) below refer to the step number(s) 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) (Steps 1-3)

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Fig 2: Fuel Gage Inaccurate Or Inoperative (Dual Tanks) (Steps 4-10)

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Fig 3: Fuel Gage Inaccurate Or Inoperative (Dual Tanks) (Steps 11-13)

Courtesy of GENERAL MOTORS CORP.