Hyundai Kona: Charging 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
1.
Install in the reverse order of removal.
  
When the negative battery terminal is reconnected, the ISG function will not operate for about 4 hours until the system stabilizes.
If the negative (-) battery terminal has been disconnected from the battery during repair work for a vehicle equipped with ISG function, battery sensor recalibration procedure should be performed after the repair work.
(Refer to Charging System - "Battery Sensor")
DC/DC Converter Schematic diagrams
Circuit Diagram [200W] [450W] ...

Battery Specifications
Specification ▷AGM60L-DIN Item Specification Capacity [20 hr / 5 hr] (AH) 60/48 Cold Cranking Amperage (A) ...

Other information:

Hyundai Kona (OS) 2018-2025 Service Manual: Repair procedures
Diagnosis With GDS 1. BCW system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. 2. Connect the cable of GDS to the data link connecto ...

Hyundai Kona (OS) 2018-2025 Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay block. Power Relay (Type A) Check for continuity between the terminals. ...

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