Diagnostic Aids
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The following are possible causes of the malfunction:
- A short between the I/P module high and low circuits.
- An open or a high resistance in the I/P module high or low circuits.
- A short to ground or a short to voltage in the I/P module high or low circuits.
- The I/P module connector
- The SDM connector
- A malfunctioning I/P module
- A malfunctioning SDM
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.