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Home >> Chevrolet >> 2000 >> C Tahoe 2WD V8-5.3L VIN T >> 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 >> IAC Position
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IAC Position

The scan tool displays counts from 0 to 1,024. The counts represent the commanded Idler Air Control (IAC) position by the PCM. The scan tool displays 0 counts for a fully seated IAC pintle. The counts increase as the idle increases. The counts vary depending on the load placed on the engine at idle.
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