Hyundai Kona: ISG (Idle Stop & Go) System / Battery Sensor Repair procedures

Hyundai Kona (OS) 2018-2024 Service Manual / Engine Control / Fuel System / ISG (Idle Stop & Go) System / Battery Sensor Repair procedures

Removal

Turn the ignition switch OFF and disconnect the battery negative (-) cable.

Battery negative (-) terminal tightening nut :

7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)

2.	Disconnect the battery sensor connector (A).

Remove the battery negative (-) cable after removing the bolt (B) and then removing the battery sensor.

Battery sensor cable flange mounting bolt (Chassis ground) :

10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 - 10.1 lb-ft)

Installation

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 Sensor Specifications

Specifications Item Specification Rated Voltage (V) 12 - 14 Quiescent Current (uA) Max. 175 ...

Brake Booster Vacuum Pressure Sensor Description and operation

Description In order to ensure adequate brake power assistance in every situation, the brake booster is equipped with a partial vacuum sensor. The brake booster vacuum pressure s ...

Other information:

Hyundai Kona (OS) 2018-2024 Owners Manual: Brake operation
In an urgent situation, the braking system enters into the ready status for prompt reaction against the driver's depressing the brake pedal. The FCA provides additional braking power for optimum braking performance, when the driver depresses the brake pedal. The braking control is automatica ...

Hyundai Kona (OS) 2018-2024 Owners Manual: Changing tires
WARNING A vehicle can slip or roll off of a jack causing serious injury or death to you or those nearby. Take the following safety precautions: Do not get under a vehicle that is supported by a jack. NEVER attempt to change a tire in the lane of traffic. ALWAYS move the vehicle completely off ...