Protege L4-1839cc 1.8L DOHC (1990)
Compressor Clutch Relay: Description and Operation
A/C Cut-Off System
In order to maintain good driveability with the air conditioning system in operation, the ECU will initiate A/C cut-off under certain driving conditions by
de-energizing the A/C clutch relay. The system acts to improve idle smoothness just after starting and to maintain acceleration performance.
A/C cut-off operates under these conditions:
1.
For approximately 2 seconds after engine start.
2.
For approximately 5 seconds at full throttle.
3.
For approximately 3 seconds when accelerating from a stop.