2. Check Refrigerant Pressure Sensor Power Supply Circuit

1. Turn A/C switch and blower switch OFF.
2. Stop engine.
3. Disconnect refrigerant pressure sensor harness connector.
   Fig 1: Locating Refrigerant Pressure Sensor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Turn ignition switch ON.
5. Check voltage between refrigerant pressure sensor terminal 1 and ground with CONSULT-II or tester.
   Fig 2: Checking Power Supply Circuit

   Courtesy of NISSAN MOTOR CO., U.S.A.
   1. Voltage: Approximately 5V 

OK or NG 

OK: GO TO 4.

NG: GO TO 3.