A/C Signal: Testing and Inspection
A/C Request Circuit CheckGo to A/C Controls.
Circuit Description
Turning ON the air conditioning supplies ignition voltage to the A/C compressor clutch and to the PCM to increase and maintain idle speed.
The PCM does not control the A/C compressor clutch. Therefore, if the A/C system does not tunction, refer to A/C Systems for diagnosis of the system.