3. Check Refrigerant Pressure Sensor Power Supply Circuit

1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
   Fig 1: Identifying Refrigerant Pressure Sensor

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between refrigerant pressure sensor terminal 1 and ground with CONSULT-II or tester.
   Fig 2: Checking Voltage Between Refrigerant Pressure Sensor Terminal & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Voltage: Approximately 5V 

OK or NG 

1. OK: GO TO 5. CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT .
2. NG: GO TO 4.