Refrigerant Pressure Sensor

DESCRIPTION
The refrigerant pressure sensor is installed at the liquid tank of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent to ECM, and ECM controls cooling fan system.

EC-RP/SEN-01:

EC-RP/SEN-01 - Connector View:

WIRING DIAGRAM

Joint Connector Terminal Arrangement (F23, F24, F25):

ECM Terminals And Reference Value:

ECM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND GROUND.

CAUTION: DO NOT USE ECM GROUND TERMINALS WHEN MEASURING INPUT/OUTPUT VOLTAGE. DOING SO MAY RESULT IN DAMAGE TO THE ECM'S TRANSISTOR. USE A GROUND OTHER THAN ECM TERMINALS, SUCH AS THE GROUND.

Steps 1 - 2:

Steps 3 - 8:

Step 9:

DIAGNOSTIC PROCEDURE