Civic EX Sedan L4-1668cc 1.7L SOHC (VTEC) MFI (2001)
Compressor Clutch Relay: Description and Operation
Air Conditioning (A/C) Compressor Clutch Relay
When the ECM/PCM receives a demand for cooling from the A/C system, it delays the compressor from being energized, and enriches the mixture to
assure smooth transition to the A/C mode.