Battery Sensor

Description

The battery sensor perceives battery status.
Battery status is a major influencing factor on the ISG function.
The aim is to enable a reliable start of the combustion engine after a defined parking period from the perspective of the vehicle energy system.The Battery sensor monitors the following data:
- Battery charge condition
- Battery temperature
- Voltage dip on engine start





CAUTION:
When battery sensor signal fault occurs, inspect the vehicle parasitic draw in advance after inspecting the sensor because the sensor will behave abnormally when the parasitic draw is more than 100mA.

NOTE:
It takes a few hours for a new battery sensor to detect the battery state correctly.
Perform the following process after replacing the battery sensor.
1. Ignition switch ON/OFF.
2. Park the vehicle about 4 hours.
3. After 4 hours later, check that the SOC (State of charge) of battery is displayed on GDS properly.
4. After engine start ON/OFF 2 times or more, check the SOF (State of function) of battery using GDS.

CAUTION:
For the vehicle equipped with a battery sensor, be careful not to damage the battery sensor when the battery is replaced or recharged.
- When replacing the battery, it should be same one (type, capacity and brand) that is originally installed on your vehicle. If a battery of a different type is replaced, the battery sensor may recognize the battery to be abnormal.
- When installing the ground cable on the negative post of battery, tighten the clamp with specified torque of 3.9 - 5.9N.m (0.4 - 0.6kgf.m, 3.0 - 4.4lb-ft). An excessive tightening torque can damage the PCB internal circuit of battery sensor or the negative post of battery.
- When recharging the battery, ground the negative terminal of the booster battery to the vehicle body.