Kia Stinger: ISG (Idle Stop & Go) System / Battery sensor

Kia Stinger CK 2018-2024 Service Manual / Engine Control / Fuel System / ISG (Idle Stop & Go) System / Battery sensor

Description and operation
Description

For various control units installed on the vehicle to function based on the signals from various sensors, stable power supply is essential. ECM controls generating voltage by duty cycle based on the signals on voltage, current and temperature of battery from battery sensor mounted to negative (-) battery terminal.

  

In case of battery sensor signal fault, inspect the vehicle parasitic draw after inspecting the sensor. The sensor may behave abnormally if the parasitic draw is greater than 100 mA. (Refer to vehicle parasitic current inspection.)

  

Perform the following process after replacing the battery sensor.

Switch "ON/OFF" the ignition.

Park the vehicle for about 4 hours.

After 4 hours, check the SOC (State of charge) of battery using KDS.

  

For a vehicle equipped with a battery sensor, be careful not to damage the battery sensor when replacing or recharging the battery.

1)

When replacing the battery, always replace with a battery of the same type, capacity and brand. If a battery of a different type is installed, the battery sensor may recognize the battery as abnormal.

2)

When connecting the ground cable to the negative terminal of battery, tighten the clamp to the specified torque of 4.0 - 6.0 N.m (0.4 - 0.6 kgf.m, 3.0 - 4.4 lb-ft). An excessive tightening torque can damage the PCB internal circuit.

3)

When recharging the battery, ground the negative terminal of the booster battery to the vehicle body.

Repair procedures
Removal
1.

Turn the ignition switch OFF.

2.

Remove the luggage covering (A).

3.

Remove the luggage center tray (A).

4.

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

5.

Disconnect the battery sensor connector (B).

6.

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

Installation
1.

Install in the reverse order of removal.

  

After reconnecting the negative battery cable, the AMS and ISG functions will not operate for about 4 hours until the system is stabilized.

When disconnecting the negative (-) battery cable from the battery when repairing a vehicle equipped with ISG function, perform battery sensor recalibration procedure after repairing. (Refer to Battery Sensor Recalibration Procedure.)

  

For a vehicle equipped with a battery sensor, be careful not to damage the battery sensor when replacing or recharging the battery.

1)

When replacing the battery, always replace with a battery of the same type, capacity and brand. If a battery of a different type is installed, the battery sensor may recognize the battery as abnormal.

2)

When connecting the ground cable to the negative terminal of battery, tighten the clamp to the specified torque. An excessive tightening torque can damage the PCB internal circuit and the battery terminal.

3)

When recharging the battery, ground the negative terminal of the booster battery to the vehicle body.

Battery Sensor Recalibration Procedure

After reconnecting the negative battery cable, the AMS and ISG functions will not operate for about 4 hours until the system is stabilized. When disconnecting the negative (-) battery cable from the battery when repairing a vehicle equipped with ISG function, perform battery sensor recalibration procedure after repairing. (Refer to Battery Sensor Recalibration Procedure.)

1.

Switch "ON" and "OFF" the ignition.

2.

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

ISG (Idle Stop & Go) System
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