Test Description

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

1. 3. This step tests the VSS assembly circuit.
2. 4. This step tests the integrity of the VSS assembly.

Fig 1: DTC P0503 Diagnosis (Steps 1-8)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0503 Diagnosis (Steps 9-16)

Courtesy of GENERAL MOTORS CORP.