Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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)

Courtesy of GENERAL MOTORS CORP.

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

Courtesy of GENERAL MOTORS CORP.

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

Courtesy of GENERAL MOTORS CORP.