Impulse Hatchback L4-1809cc 1.8L DOHC (4XF1-W) (1992)
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Compressor Clutch Relay: Description and Operation
The ECM controls ON/OFF operation of the A/C compressor through the relay.
When the ECM receives the A/C request signal (from the switch), it modifies the idle speed and ignition timing before it supplies the ground for the
relay.
