Refrigerant Pressure Sensor: Wiring Diagram

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Refer to POWER SUPPLY, GROUND & CIRCUIT ELEMENTS PATHFINDER-->.

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

Courtesy of NISSAN NORTH AMERICA, INC.

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.

SPECIFICATION DATA AND REFERENCE VALUES CHART

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
49	P	Sensor power supply (Refrigerant pressure sensor/Battery current sensor)	[Ignition switch: ON]	Approximately 5V
67	B	Sensor ground	[Engine is running] Warm-up condition Idle speed	Approximately 0V
70	BR	Refrigerant pressure sensor	[Engine is running] Warm-up condition Both A/C switch and blower switch: ON (Compressor operates)	1.0 - 4.0V