Air Conditioning (A/C) Cycling Switch
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
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 will turn off the A/C clutch. For information on the specific function of the A/C cycling switch, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION . Also, refer to the SYSTEM 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 POWERTRAIN CONTROL MODULE (PCM) OUTPUTS , WIDE OPEN THROTTLE A/C CUT-OFF (WAC) .
NOTE:
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.