Test Description

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. 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 the ability of the VSS to produce an AC voltage. This step also verifies the integrity of the wiring to the PCM.

4. This step tests the VSS circuit for correct resistance.

Fig 1: DTC P0503 (1 of 3)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0503 (2 of 3)

Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC P0503 (3 of 3)

Courtesy of GENERAL MOTORS CORP.