Refrigerant Pressure Sensor: Wiring Diagram

For PG-POWER references, see SYSTEM WIRING DIAGRAMS (M35) or SYSTEM WIRING DIAGRAMS (M45).

Fig 1: Wiring Diagram - EC-RP/SEN-01

Courtesy 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.

ECM TERMINAL INSPECTION CHART

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
49	B/Y	Sensor power supply (Refrigerant pressure sensor, Battery current sensor)	[Ignition switch: ON]	Approximately 5V
67	B/W	Sensor ground (MAF sensor, IAT sensor, ECT sensor, EVAP control system pressure sensor, PSP sensor, ASCD/ICC steering switch, Battery current sensor, Refrigerant pressure sensor)	[Engine is running] Warm-up condition Idle speed	Approximately 0V
70	L/R	Refrigerant pressure sensor	[Engine is running] Warm-up condition Both A/C switch and blower fan motor switch: ON (Compressor operates)	1.0 - 4.0V