Hyundai Santa Fe: 4WD Control System / Repair procedures

Hyundai Santa Fe (TM) 2019-2025 Service Manual / 4 Wheel Drive (4WD) System / 4WD Control System / Repair procedures

Removal
1.
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with the diagnostic tool.
(Refer to 4WD Control System - "Repair Procedures")
2.
Turn OFF ignition switch and the disconnect the negative (-) battery cable.
3.
Remove the luggage side trim. [Left side]
(Refer to Body - "Luggage Side Trim")
4.
Disconnect the 4WD ECU connector (A).
5.
Loosen the nuts and then removing 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 procedures.
2.
Prior to installing a new ECU, upload the original ECU’s clutch learing to the replacement ECU using the diagnostic tool.
(Refer to 4WD Control System - "Repair Procedures")

    Schematic diagrams

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    Driveshaft and axle

    ..

    Other information:

    Hyundai Santa Fe (TM) 2019-2025 Service Manual: Troubleshooting


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    Hyundai Santa Fe (TM) 2019-2025 Service Manual: Canister. Repair procedures


    Removal    • Be careful not to damage the parts located under the vehicle (floor under cover, canister, fuel tank) when raising the vehicle using the lift...

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