Component Inspection (Battery Current Sensor)

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BATTERY CURRENT SENSOR

Turn ignition switch OFF.
Reconnect harness connectors disconnected.
Disconnect battery negative cable.

Fig 1: Disconnecting Battery Negative Cable
Courtesy of NISSAN MOTOR CO., U.S.A.
Install jumper cable between battery negative terminal and body ground.
Turn ignition switch ON.

Check the voltage between ECM harness connector terminals under the following conditions.

VOLTAGE SPECIFICATION

ECM			Voltage (V)
Connector	+	-
Connector	Terminal	Terminal
E80	138 (Battery current sensor signal)	150	Approx. 2.5

Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "HOW TO HANDLE BATTERY ".

Is the inspection result normal?

YES: INSPECTION END

NO: Replace battery negative cable assembly.