Repair Procedures: Replacement

Removal 

1. Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learning with the GDS tool.

   (Refer to 4WD Control System - "ADJUSTMENT ")

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. Lose 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)

   Courtesy of HYUNDAI MOTOR AMERICA

Installation 

1. To install, reverse the removal procedure.
2. Prior to installing a new ECU, upload the original ECU's clutch learning to the replacement ECU using the GDS tool.

   (Refer to 4WD Control System - "ADJUSTMENT ")