Test Description

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

1. 2. This step determines if DTC P0112 is a hard failure or an intermittent condition.
2. 3. This test will determine if the PCM can recognized an open sensor.
3. 4. This step will determine if the problem is a short to ground or a malfunctioning PCM.

Fig 1: DTC P0112

Courtesy of GENERAL MOTORS CORP.