DTC P1551, P1552 Battery Current 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-CUR/SE-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 ECMs 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)

Sensor power supply (Refrigerant pressure sensor/ Battery current sensor)

[Ignition switch: ON]

Approximately 5V

Sensor ground

[Engine is running]

Warm-up condition
Idle speed

Approximately 0V

Battery current sensor

[Engine is running]

Battery: Fully charged⁽¹⁾
Idle speed

Approximately 2.6 - 3.5 V

⁽¹⁾	Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "SPECIFIC GRAVITY CHECK ".