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Home >> Chevrolet >> 1999 >> Express 1 Ton Van V8-5.7L VIN R >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Desired IAC Position
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Desired IAC Position

Range (0-255) Counts
The desired IAC Position indicates how much the IAC valve is commanded open by the VCM. 0 counts would indicate a commanded fully closed valve. 255 counts would indicate a commanded fully opened valve.
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