Pressure Transducer
The Pressure Transducer is fitted into the high-pressure line between the condenser and the expansion valve, on the drivers side rear of the engine compartment, under the battery.
The pressure transducer signals EMS2000 for compressor control and engine electric cooling fan operation.
Because the compressor is lubricated by oil suspended in the refrigerant, the EMS2000 prevents operation of the compressor unless there is a minimum refrigerant pressure, and thus refrigerant and oil, in the system.
When refrigerant pressure increases the EMS2000 increases cooling fan speed to provide more airflow across the condenser.