Hyundai Kona: 4WD Control System / 4WD ECU Repair procedures

Hyundai Kona (OS) 2018-2021 Service Manual / 4 Wheel Drive (4WD) System / 4WD Control System / 4WD ECU Repair procedures

Replacement
1.
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with the GDS tool.
(Refer to 4WD Control System - "Repair procedure")
2.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
3.
Remove the left side luggage side trim .
(Refer to Body - "Luggage Side Trim")
4.
Disconnect the connector (A).
5.
Losen the nuts and then remove the 4WD ECU (B).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Installation
1.
To install, reverse the removal procedure.
2.
Prior to installing a new ECU, upload the original ECU’s clutch learing to the replacement ECU using the GDS tool.
(Refer to 4WD Control System - "Repair procedure")
4WD ECU Schematic diagrams
Circuit Diagram 1. Terminal Operation Terminal Operation 1 CAN LOW ...

Coupling Assembly
...

Other information:

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