Hyundai Santa Fe: 4WD Control System / Repair procedures

Hyundai Santa Fe (TM) 2019-2024 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).

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

Driveshaft and axle

Other information:

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