Test Description

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

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

Fig 1: Fuel Gauge Inaccurate Or Inoperative (Single Tank) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuel Gauge Inaccurate Or Inoperative (Single Tank) (2 Of 2)

Courtesy of GENERAL MOTORS CORP.