Mustang V8-4.6L (2009)
Refrigerant Pressure Sensor / Switch: Description and Operation
Air Conditioning (A/C) Cycling Switch
Engine Control Components
Air Conditioning (A/C) Cycling Switch
The A/C cycling switch may be wired to either the ACCS or ACPSW PCM input. When the A/C cycling switch opens, the PCM turns off the A/C clutch.
For information on the specific function of the A/C cycling switch, refer to the Climate Control System Air Conditioning System Overview. Also, refer
to the applicable Wiring Diagrams for vehicle specific wiring.
If the ACCS signal is not received by the PCM, the PCM circuit will not allow the A/C to operate. For additional information, refer to wide open throttle
air conditioning cutoff (WAC).
Some applications do not have a dedicated (separate) input to the PCM indicating that A/C is requested. This information is received by the PCM
through the communication link.
