Scoupe L4-1468cc 1.5L SOHC (12 VALVE) (1993)
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Air Conditioning Switch: Description and Operation
PURPOSE
To allow the ECM to control the A/C operation, and make changes in the idle speed and fuel mixture due to the added engine load.
A/C Relay Location
LOCATION
In the relay box in the front of the drivers side engine compartment
OPERATION
When the A/C system is switched on, a voltage signal is supplied to the ECM. The ECM determines if engine conditions are suitable for A/C operation
(idle speed, ignition timing and air/fuel mixture). If conditions are suitable for A/C operation, it supplies the ground circuit for the A/C relay coil. This
allows the relay to supply voltage to the compressor clutch.
The ECM also maintains the correct fuel mixture and idle speed during the operation of the A/C system.