Hyundai Palisade: AWD Control System / AWD ECU

Hyundai Palisade (LX2) 2020-2024 Service Manual / 4 Wheel Drive (AWD) System / AWD Control System / AWD ECU

Components and components location
Components Location

Hyundai Palisade. Components and components location

1. AWD ECU
2. Luggage side trim [Left side]

Description and operation
Description
The AWD ECU distributes the driving force to the front/rear wheel through controlling the multi plate clutch on the AWD transfer case by analyzing the input information, i.e. the wheel speed, accelerator and steering angle depending on the road condition and driving state. The AWD vehicle has different power transmitting conditions depending on the driving/road conditions. The vehicle speed is transmitted through CAN communication from ABS/ESP ECU.
The information from the CAN communication includes the APS which indicates the driver’s intention of acceleration, engine torque, ABS/ESP operation signal and gear position. The AWD ECU controls the BLDC motor, warning lamp and indicating lamp and communicates with the tester equipment. When a vehicle runs at normal speed higher than 60KPH on regular roads, it is controlled under the 2WD conditions. The ECU decides the driving force on the front and rear wheel by receiving the signals from all sensors depending on the driving conditions, i.e. abrupt starting, turning and driving on the low friction road, and the optimized torque which is proper to the driving condition is transmitted to the front wheel through calculating and controlling the transmitted torque data.

Hyundai Palisade. Description and operation

Flow diagram
Power Flow Diagram

Hyundai Palisade. Flow diagram

AWD ECU Input&Output Diagram

Hyundai Palisade. Flow diagram

Schematic diagrams
Circuit Diagram
AWD ECU Connector

Hyundai Palisade. Schematic diagrams

AWD ECU Pin Function
Pin
Function
1
Motor B
2
Motor A
3
-
4
-
5
Pressure sensor supply
6
-
7
IG1
8
Motor shield wire ground
9
Battery ground
10
Battery supply
11
-
12
-
13
-
14
Pressure sensor signal
15
Pressure sensor ground
16
-
17
CAN HIGH
18
CAN LOW
19
-
20
-

Repair procedures
Removal
1.
Prior to replacing the AWD ECU, check the AWD ECU's clutch learing with the diagnotic tool.
(Refer to AWD Control System - "Repair Procedures")
2.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
3.
Remove the left side luggage side trim.
(Refer to Body - "Interior Trim")
4.
Disconnect the AWD ECU connector (A).

Hyundai Palisade. Repair procedures

5.
Loosen the mounting nuts and then removing the AWD ECU (A).
Tightening torque:
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures

Installation
1.
To install, reverse the removal procedures.
2.
Prior to installing a new ECU, upload the original ECU’s clutch learing to the replacement ECU using the diagnotic tool.
(Refer to AWD Control System - "Repair Procedures")

    Repair procedures

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    Coupling Assembly

    ..

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    Categories

    Rear Seats

    Rear seat adjustment

    Hyundai Palisade. Rear Seats

    Forward and rearward (2nd row seat)

    To move the seat forward or rearward:

    1. Pull the seat slide adjustment lever up and hold it.

    2. Slide the seat to the position you desire.

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