plymouth Workshop Repair Guides

Plymouth Workshop Manuals

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Air Conditioning Switch: Description and Operation

AIR CONDITIONING SWITCH SENSE-PCM INPUT

When the air conditioning or defrost switch is put in the ON position and the low pressure switch, combination valve, and high pressure switch
close, the PCM receives an A/C input. After receiving this input, the PCM activates the A/C compressor clutch by grounding the A/C clutch relay.
The PCM also adjusts idle speed to a scheduled RPM to compensate for increased engine load.

Heating and Air Conditioning > Air Conditioning Switch > Component Information > Description and Operation

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