Diagnostic Aids

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

Check for the following conditions:

Check for a shorted MIL control circuit between the PCM and the instrument panel cluster (IPC) assembly.
A shorted IPC assembly board may cause the MIL to stay ON.

An intermittent malfunction may be caused by a faulty electrical connection. Refer to Intermittent Conditions .