Kia Sportage: Description and Operation, Flow Diagram | Schematic Diagrams | Components and Components Location, Repair procedures

Description and Operation

 Description

4WD ECU processes signals from various sensors and determines the current road and driving conditions. The ECU then utilizes this information to implement precision control over the 4WD coupling's multi-plate clutch and variably adjust the amount of torque delivered to the rear wheels.

Flow Diagram

 Power Flow Diagram

 4WD ECU Input&Output Diagram

Schematic Diagrams

 Circuit Diagram

4WD ECU Connector

1. Oil pressure motor A
2. Oil pressure motor Ð’
3. Lock mode switch
4. -
5. Input sensor signal (+)
6. -
7. CAN communication line (High)
8. CAN communication line (Low)
9. -
10. -
11. -
12. IG power
13. Ground
14. Battery power
15. Input sensor signal(-)
16. Pressure sensor (Input)
17. -
18. -

 4WD ECU Circuit Diagram

Components and Components Location, Repair procedures

Components and Components Location

 Component Location

1. Crash pad
2. Crash lower panel
3. 4WD ECU

Repair procedures

 Replacement

CAUTION

Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with the GDS tool. (Refer to "Coupling assembly" in 4WD group)

1. Remove the lower panel. (Refer to "Crash Pad" in BD group)

2. Remove the IPM. (Refer to "Fuses and Relays" in BE group)

3. Remove the parking brake pedal. (Refer to "Parking Brake System" in BR group

4. Remove the 4WD ECU (C) after removing the nut (A-2ea) and the connector (B).

Tightening torque: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

5. Installation is the reverse of removal.

CAUTION

Prior to installing a new ECU, upload the original ECU's clutch learing to the replacement ECU using the GDS tool. (Refer to "Coupling assembly" in 4WD group)

READ NEXT: