A/C Pressure Cycling Switch

A/C Control Circuit:

The A/C pressure cycling switch, located on the suction tube near the accumulator, is a normally open switch that closes when there is sufficient refrigerant charge (greater than approx. 25 psi). When the A/C control switch is turned "ON" and the pressure cycling switch is closed, a request signal is sent to the PCM, which energizes the A/C compressor clutch.