Kia Rio: Charging System / Battery Sensor

Kia Rio 2017-2020 YB Service Manual / Engine Electrical System / Charging System / Battery Sensor

Description and operation
Description

Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power supply as there diverse sensors giving a variety of information. Battery sensor (A) is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to ECM. ECM controls generating voltage by duty cycle based on these signals.

Repair procedures
Removal
1.

Turn the ignition switch OFF.

2.

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

3.

Disconnect the battery sensor connector (B).

4.

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

Battery negative (-) terminal tightening nut :

4.0 - 6.0 N·m (0.4 - 0.6 kgf·m, 3.0 - 4.4 lb·ft)

Battery sensor cable mounting bolt(Chassis ground) :

10.8 - 13.7 N·m (1.1 - 1.4 kgf·m, 7.9 - 10.1 lb·ft)

Installation
1.

Install in the reverse order of removal.

  

After reconnecting the battery negative cable, AMS and ISG function does not operates until the system is stabilized, about 4 hours.

If disconnecting the negative (-) battery cable from the battery during repair work for the vehicle equipped with ISG function, Battery sensor recalibration procedure should be performed after finishing the repair work. (Refer to Battery Sensor Recalibration Procedure)

  

For the vehicle equipped with a battery sensor, be careful not to damage the battery sensor when the battery is replaced or recharged.

1)

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.

2)

When installing the ground cable on the negative post of battery, tighten the clamp with 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 battery negative cable, AMS function does not operates until the system is stabilized, about 4 hours. If disconnecting the negative (-) battery cable from the battery during repair work for the vehicle equipped with AMS function, Battery sensor recalibration procedure should be performed after finishing the repair work.

1.

Turn the Iginition switch ON and OFF.

2.

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

Battery
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