Hyundai Tucson: 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 - "Adjustment")
2.
Disconnect the battery negative cable from the battery
3.
Disconnect the 4WD ECU connector (A).

4.
Loosen the nust (A) and then remove the 4WD ECU.

Tightening torque:
9.8 ~11.8N.m (1.0~1.2kgf.m, 7.2~8.7lb-ft)

Installation
1.
Install in the reverse order of removal.
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 - "Adjustment")
4WD ECU Schematic Diagrams
Circuit Diagram 4WD ECU Connector PinFunction1CAN communication line (Low)2CAN communication line (High)3-4Pressure sensor signal(+)5-6Lock mode switch7Oil pressure motor B8Oil pressure motor ...

Coupling Assembly
...

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Outside light
Turn signal light and stop/tail light 1. Open the tailgate. 2. Loosen the lamp assembly retaining screws with a cross-tip screwdriver. 3. Remove the rear combination lamp assembly from the body of the vehicle. 4. Remove the socket from the assembly by turning the socket counterclockwise un ...

Hyundai Tucson (LM) 2010-2015 Service Manual: TJ Joint Repair procedures
Removal     • Special grease must be applied to the driveshaft joint. Do not substitute with another type of grease. • The boot band should be replaced with a new one. 1. Remove the Front Driveshaft. (Refer to Driveshaft Assembly - “Front Driveshaft”) ...

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