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Home >> Saturn >> 2002 >> SC2 Automatic, MP6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0508: Idle Control System Circuit Low >> DTC Parameters
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DTC Parameters

DTC sets when either IAC valve coil "A" or "B" is low (grounded) when it should be high (ignition voltage) for greater than 0.5 second. A short to ground will also set this DTC when PCM is commanding IAC valve to move.

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