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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Diagnostic Parameters >> Pcm Specific Input Codes >> PI79: Output Fault Status
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PI79: Output Fault Status

This display shows fault status of 2 of the PCM's quad-drivers. PI79 will be HI with fault is present and LO when no fault is present.

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