Hyundai Palisade (LX2): Coupling Assembly / Pressure Sensor

Hyundai Palisade (LX2) 2020-2025 Service Manual / 4 Wheel Drive (AWD) System / Coupling Assembly / Pressure Sensor

Description and operation

Description

The AWD ECU makes a Motor Pump(Actuator) turn round for generating an oil pressure. And then it presses a multiple disk clutch and transfers the generated torque into rear wheels. Its torque value varies according to a pressure status.

•	Component location

Schematic diagrams

Circuit Diagram

Hyundai Palisade. Schematic diagrams

Repair procedures

Inspection

Measure the resistance of pressure sensor

1.	Turn ignition switch OFF.

2.	Disconnect the pressure sensor connector.

3.	Measure resistance between sensor terminal and terminal.

4.	Check the measured resistance. (Refer to table)

[Table 1]

Terminal	Resistance
PIN 2 – PIN 3	153.2 - 255.36 kΩ
PIN 1 – PIN 3	50.3 - 75.6 kΩ
PIN 1 – PIN 2	123.36 - 328.56 kΩ

Removal

Remove the coupling assembly.

(Refer to 4 Wheel Drive (AWD) System - "Coupling Assembly")

•	Keep it level with the sticker (A) on the top of the coupling.

Remove the pressure sensor (A).

•	Keep going horizontal state to prevent leaks during remove the pressure sensor.

Tightening torque:

10.8 - 14.7 N.m (1.1 - 1.5 kgf.m, 8.0 - 10.8 lb-ft)

Hyundai Palisade. Repair procedures

Installation

1.	To install, reverse the removal procedure.

•	Check the cleanliness of the pressure sensor before installation.

•	Check the pressure sensor O-ring (A).

•	Keep it level with the sticker (A) on the top of the coupling.

❮Oil hydraulic Motor(Actuator)

Description and operation Description The AWD 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.

Relif Valve❯

Description and operation Description When the pressure inside the coupling exceeds the set pressure value, this valve maintains the pressure under the set value by discharging the partial or whole amount.

Other information:

Hyundai Palisade (LX2) 2020-2025 Service Manual: Troubleshooting

Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.

Hyundai Palisade (LX2) 2020-2025 Service Manual: Cluster Ionizer

Description and operation Description The cluster ionizer makes disinfection and decomposition of bad smell from the air-conditioner or inflow air. And it cleans the inside air of a vehicle. When the ignition switch is ON, the ionizer runs "CLEAN" mode and then "ION" mode, switching between both modes.