Hyundai Kona: ISG (Idle Stop & Go) System / DC/DC Converter Repair procedures

Removal
[200W]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the DC/DC converter connector.
4.
Remove the DC/DC converter (B) after removing the nuts (A).

[450W]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the heater & A/C control unit.
(Refer to Heating, Ventilation and Air Conditioning - "Heater & A/C Control Unit")
3.
Disconnect the DC/DC converter connector (A).
4.
Remove the DC/DC converter (B) after removing the screw & nuts.

Installation
  
After reconnecting the battery negative cable, 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 AMS function, Battery sensor recalibration procedure should be performed after finishing the repair work.
1.
Install in the reverse order of removal.
DC/DC Converter Schematic diagrams
Circuit Diagram [200W] [450W] ...

ISG OFF Switch Description and operation
Description The ISG OFF switch on the floor console can be used to deactivate the ISG function. ...

Other information:

Hyundai Kona (OS) 2018-2023 Service Manual: Fuel Filler Cap Description and operation
Description A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which would seal the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clickin ...

Hyundai Kona (OS) 2018-2023 Owners Manual: Manual adjustment
Forward and rearward adjustment To move the seat forward or rearward: 1. Pull up the seat slide adjustment lever and hold it. 2. Slide the seat to the position you desire. 3. Release the lever and make sure the seat is locked in place. Move forward and rearward without using the lever. If the seat ...

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