Battery Sensor

Description and Operation

Description

A stable power supply is required for the various control units installed in the vehicle to operate based on signals from the various sensors. The ECM monitors the charging voltage duty control based on the voltage, current and temperature signals from the battery sensor installed on the negative (-) battery terminal.

Repair Procedures

Removal

1. 1

   Turn the ignition off.

2. 2

   Remove the luggage compartment cover (A).

   

3. 3

   Remove the luggage compartment center tray (A).

   

4. 4

   Disconnect the negative (-) terminal (A) from the battery.

5. 5

   Disconnect the battery sensor connector (B).

   

6. 6

   Remove the battery sensor by loosening the mounting bolts (C).

   

Installation

1. Install in the reverse order of removal.

Battery Sensor Recalibration Procedure

After reconnecting the negative battery cable, the AMS and ISG functions are disabled. Do not operate the vehicle for approximately 4 hours until the system stabilizes. When disconnecting the negative (-) battery cable from the battery during repair of a vehicle equipped with ISG, perform the Battery Sensor Recalibration procedure after the repair. (Refer to Battery Sensor Recalibration Procedure.)

1. 1

   Turn the ignition switch on and off.

2. 2

   Park the vehicle for approximately 4 hours with the hood closed and all doors closed.