TC BY Maserati V6-181 2972cc 3.0L SOHC VIN S FI (1991)
Compressor Clutch Relay: Description and Operation
Relay Location/Identification
The Air Conditioning (A/C) clutch relay is powered by the radiator fan relay A/C switch and the engine controller (exc. variable displacement system)
and controlled by the engine controller. This relay is ON (ENERGIZED) when the engine is RUNNING, the A/C switch is ON, and the blower switch is
ON. When the engine controller receives an input signalling wide open throttle or low idle rpm, it will DE-ENERGIZE the relay, preventing A/C
operation.