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Home >> GMC Truck >> 1999 >> K 3500 Truck 4WD V8-454 7.4L VIN J SFI >> 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 >> A/C Request

A/C Request

(Yes/No):
The scan tool indicates the state of the A/C request input circuit. The VCM uses the A/C request signal in order to determine whether A/C compressor operation has been requested by the operator.
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