Diagnostic Aids
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Inspect SIR wiring and connectors for damage or intermittent connections. An incomplete inspection of wiring and connectors may result in misdiagnosis and incorrect parts replacement. A short to ground in diagnostic request circuit or an internal SDM malfunction could cause condition.
NOTE:
For circuit number and wire color identification, see WIRING DIAGRAMS .