Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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

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

Fig 1: Fuel Gage Inaccurate or Inoperative (Single Tank) Diagnosis (Steps 1-3)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuel Gage Inaccurate or Inoperative (Single Tank) Diagnosis (Steps 4-11)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Fuel Gage Inaccurate or Inoperative (Single Tank) Diagnosis (Steps 12-13)

Courtesy of GENERAL MOTORS CORP.