1. Check Refrigerant Pressure Sensor Overall Function

1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower switch ON.
3. Check voltage between ECM terminal 88 and ground with CONSULT-II or tester.
   Fig 1: Checking Voltage Between ECM Terminal & Ground

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

   Voltage: 1.0 - 4.0V 

OK or NG 

1. OK: INSPECTION END 
2. NG: GO TO 2.