Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

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

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

Fig 1: Diagnostic System Check Chart - Fuel Gage Inaccurate or Inoperative (1 Of 4)

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Fig 2: Diagnostic System Check Chart - Fuel Gage Inaccurate or Inoperative (2 Of 4)

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Fig 3: Diagnostic System Check Chart - Fuel Gage Inaccurate or Inoperative (3 Of 4)

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Fig 4: Diagnostic System Check Chart - Fuel Gage Inaccurate or Inoperative (4 Of 4)

Courtesy of GENERAL MOTORS CORP.