Hyundai Palisade: Coupling Assembly / Pressure Sensor

Hyundai Palisade (LX2) 2020-2024 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

Hyundai Palisade. Description and operation

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
1.
Remove the coupling assembly.
(Refer to 4 Wheel Drive (AWD) System - "Coupling Assembly")
Hyundai Palisade. Repair procedures   
Keep it level with the sticker (A) on the top of the coupling.

Hyundai Palisade. Repair procedures

2.
Remove the pressure sensor (A).
Hyundai Palisade. Repair procedures   
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

Hyundai Palisade. Repair procedures

Installation
1.
To install, reverse the removal procedure.
Hyundai Palisade. Repair procedures   
Check the cleanliness of the pressure sensor before installation.
Check the pressure sensor O-ring (A).

Hyundai Palisade. Repair procedures

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

Hyundai Palisade. Repair procedures

    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...

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