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Home >> Pontiac >> 2002 >> Aztek AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Idle Control System >> Idle Air Control System Diagnosis >> Test Description

Test Description

The numbers below refer to step numbers in diagnostic procedure.

  1. 5

    This test will determine ability of PCM and IAC valve circuits to control IAC valve.

  2. 7

    This test will determine ability of PCM to provide IAC valve circuits with ground. On a normally operating system, test light should not flash while IAC counts are incrementing.

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