FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Home >> Chevy Truck >> 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 Idle Speed

Desired Idle Speed

Range (0-3,187 RPM)
The VCM commands the Desired Idle Speed by controlling the IAC. The VCM compensates for various engine loads by controlling IAC in order to maintain the desired idle speed.
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