Hyundai Kona: Charging 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, but rather is transferred directly to the outputs. In the booster phase, the vehicle voltage is adapted.

Alternator Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the battery negative (-) terminal. 2. Disconnect the air compressor connector (A) and th ...

DC/DC Converter Components and components location

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

Other information:

Hyundai Kona (OS) 2018-2025 Owners Manual: Headlamp delay function
If you place the ignition switch to the ACC or OFF position with the headlamps ON, the headlamps (and/or position lamps) remain on for about 5 minutes. However, with the engine off if the driver’s door is opened and closed, the headlamps (and/or position lamps) are turned off after 15 seconds. ...

Hyundai Kona (OS) 2018-2025 Service Manual: Fuel Line Repair procedures
Removal 1. Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") 2. Turn the ignition switch OFF, and then remove battery (-) terminal. ...