NSX V6-3.0L DOHC (1991)
Compressor Clutch Relay: Description and Operation
A/C Compressor Clutch Relay Operation
When the relay is grounded it allows power to the air conditioning clutch, engaging the compressor.
In under-hood relay box-A, center corner trunk.
Power is applied to the relay from ignition switch terminal (Ign. 2) and is hot whenever the switch is turned ON. The ground is supplied by ECU.