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Pontiac
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2003
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Vibe Base, FWD, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Control System - Self-Diagnostics
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System Tests
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Mil Always On
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Diagnostic Aids
Diagnostic Aids
Check for the following conditions:
Check for a shorted MIL control circuit between PCM and IPC assembly.
A shorted IPC assembly board may cause MIL to stay illuminated.
An intermittent malfunction may be caused by a faulty electrical connection. See
INTERMITTENTS
in TROUBLE SHOOTING - NO CODES - 1.8L VIBE article.