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Refrigerant Pressure Sensor: Wiring Diagram

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Wiring Diagram (EC-RP/SEN-01)
G04185653Courtesy of NISSAN MOTOR CO., U.S.A.

Specification data are reference values and are 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.
TERMINAL WIRE ITEM CONDITION CHART

TERMINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
49 R/Y Sensor power supply (Refrigerant pressure sensor) [Ignition switch: ON]  Approximately 5V
67 B Sensor ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
Approximately 0V
70 B/W Refrigerant pressure sensor [Engine is running] 
  • Warm-up condition 
  • Both A/C switch and blower switch: ON

    (Compressor: Operates.)

1.0 - 4.0V