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

Kia Stinger (CK) 2018-2023 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

Driveshaft and axle

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Lift And Support Points

General information Lift And Support Points When heavy rear components such as suspension, fuel tank, spare tire, tailgate and trunk lid are to be removed, place additional weight in the luggage area before hoisting. When substatial weight is removed from the rear of the vehicle, the center of gravity may change and can cause the vehicle to tip forward on the hoist.

Kia Stinger (CK) 2018-2023 Service Manual: Blind-Spot Collision Warning (BCW) Unit

Components and components location Components Repair procedures Removal lf replacement of the bracket or extension wire of BCW unit is required, it is recommended to surely replace the defective part only with a new one, not the whole BCW unit.