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Home >> Pontiac >> 1990 >> Grand Prix SE, 3.1 T, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Idle Speed Control (ISC) Motor (CADILLAC Except Brougham)
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Idle Speed Control (ISC) Motor (CADILLAC Except Brougham)

A malfunction in the ISC circuit will set a trouble code. For testing procedures, see appropriate TESTS W/CODES article. Also, see ISC minimum and maximum adjustment procedures in ADJUSTMENTS article.

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