Kia Stinger: 4 Wheel Drive (AWD) System / AWD Control System

Kia Stinger CK 2018-2024 Service Manual / 4 Wheel Drive (AWD) System / AWD Control System

Components and components location
Components Location

1. AWD ECU

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 DC 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.

Flow diagram
AWD ECU input/output diagram

Schematic diagrams
AWD ECU terminal function
[AWD ECU connector]

Pin
Description
1
Motor B
2
Motor A
5
Pressure sensor suplly
7
IG1
8
Motor shield wire ground
9
Beterry ground
10
Beterry
14
Pressure sensor signal
15
Pressure sensor ground
17
CAN HIGH
18
CAN LOW

Repair procedures
Removal
1.

Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.

Remove the crash pad lower panel.

(Refer to Body - "Crash Pad Lower Panel")

3.

Remove the knee airbag.

(Refer to Restraint - "Knee Airbag (KAB) Module")

4.

Disconnect the AWD ECU connector (A).

5.

Loosen the AWD ECU bracket nuts and then remove the AWD ECU (A).

Installation
1.

Install in the reverse order of removal.

  

Prior to installing a new ECU, upload the original ECU's clutch learning to the new ECU using the KDS tool.

(Refer to 4 Wheel Drive (AWD) System - "Repair procedures")

Oil Seal
Repair procedures Replacement Oil Seal (Main Shaft) 1. Remove the transfer case assembly. (Refer to 4 Wheel Drive (AWD) System -"Transfer Case Assembly") ...

Driveshaft and axle
Special service tools Special Service Tools Tool Name / Number Illustration Description 09495-3K000 Band installer ...

Other information:

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