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Home >> Buick >> 1999 >> Regal V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> A/C Request

A/C Request

Scan Tool Displays YES or NO. YES displayed indicates that the HVAC system has requested A/C compressor operation. The HVAC system sends A/C request information to the PCM via serial data (CKT 1807).
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