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) 2018-2021 Service Manual: Description and operation
Warning Lamp Activation Warning Lamp Behavior after Ignition On As soon as the operating voltage is applied to the SRSCM ignition input, the SRSCM activates the warning lamp for a LED lamp check. The lamp shall turn on for 6 seconds during the initialization ...

Hyundai Kona (OS) 2018-2021 Owners Manual: Battery replacement
If the remote key is not working properly, try replacing the battery with a new one. Battery Type: CR2032 To replace the battery: 1. Insert a slim tool into the slot and gently pry open the cover. 2. Using a screw driver, remove the battery cover. 3. Remove the old battery and insert a new battery ...