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Hyundai Tucson: Coupling Assembly- Installation

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Wheel Drive (4WD) System / Coupling Assembly / Coupling Assembly- Installation

To install, reverse the removal procedures.

WARNING

Smear the splines (A) with molybdenum type high pressure grease.
When install the coupling, be careful not to damage the oil seal (B).

After replacing the coupling, reset the 4WD ECU's clutch learing using the diagnostic tool.

(Refer to 4WD Control System - "Repair procedures")

Description

The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an oil pressure. The pressure engages a multiple disk clutch to transfer torque to the rear wheels. The torque to the rear wheels varies according to the pressure on the clutch.

Circuit Diagram

Circuit Diagram

Inspection

Inspection

WARNING

If you have trouble code related to the oil hydraulic motor (actuator), check oil hydraulic motor (acmator) according to the inspection process.

Oil Hydraulic Motor (Actuator) Inspection Procedure

Removal Remove the coupling assembly. (Refer to 4 Wheel Drive (4WD) System - "Direct Electro Hydraulic Actuator Coupling") Keep going perpendicular state after remove the coupling assembly. WARNING Keep going perpend

Measuring the resistance of the pressure sensor

Turn ignition switch OFF. Disconnect the pressure sensor connector. Measure resistance between sensor terminal and terminal. Check the measured resistance. (Refer to table) Table 1 Removal Remove the coupling assembly. (Refer to

Measuring the resistance of the pressure sensor- Adjustment

Adjustment Description The friction material inside the coupling will degrade over time. Therefore, corresponding compensation values must be referenced and entered after replacing the controller or the coupling. Compensation Requirement and Pr

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The hardening sealant located on the upper area between timing chain cover and cam carrier, cylinder head cover should be removed before assembling cylinder head cover. Install the cylinder head cover. (1) Install the new gasket. WARNIN

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