Hyundai Kona: ISG (Idle Stop & Go) System / DC/DC Converter Description and operation

Due to the considerably more frequent occurrence of starting operations, the electrical load that occurs often leads to voltage dips in the vehicle network.In order to stabilize the power supply for certain voltage-sensitive electrical components, a DC/DC converter is used in conjunction with the ISG function.The DC DC converter supplies the relay with a voltage that also remains constant during the starting operation.

The DC/DC converter is fitted at the behind of the glove box.Via the test leads for input voltage and the start relay , the electronics decide whether the power is supplied to the output via the bypass or the DC/DC converter.In the bypass mode, the on-board supply voltage is not fed across the DC/DC converter, rather is transferred directly to the outputs. In the booster phase, the vehicle voltage is adapted.

AGM Battery Repair procedures

Removal 1. Turn the ignition switch OFF. 2. Remove the air duct. (Refer to Engine Mechanical System - "Air Cleaner") ...

DC/DC Converter Components and components location

Component Location 1. DC/DC Converter [450W] 2. DC/DC Converter [200W] ...

Other information:

Hyundai Kona (OS) 2018-2024 Service Manual: Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box. (Refer to Body - "Glove Box Upper Cover Assembly") 3. Remove the smart key unit. ...

Hyundai Kona (OS) 2018-2024 Service Manual: Front Fog Lamps Repair procedures
Removal [Front Fog Lamp] 1. Disconnect the negative (-) battery terminal. 2. Remove the front bumper. (Refer to Body - "Front Bumper Cover") 3. Disconnect t ...