Hyundai Santa Fe (TM): 4WD Control System / Repair procedures
| Removal |
| 1. |
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with
the diagnostic tool.
(Refer to 4WD Control System - "Repair Procedures")
|
| 2. |
Turn OFF ignition switch and the disconnect the negative (-) battery
cable.
|
| 3. |
Remove the luggage side trim. [Left side]
(Refer to Body - "Luggage Side Trim")
|
| 4. |
Disconnect the 4WD ECU connector (A).
|
| 5. |
Loosen the nuts and then removing the 4WD ECU (B).
|
| 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 diagnostic tool.
(Refer to 4WD Control System - "Repair Procedures")
|
Circuit Diagram 4WD ECU Connector 4WD ECU Pin Function Pin Function 1 Motor B 2 Motor A 3 - 4 - 5 Pressure sensor (power) 6 - 7 IG1 8 Motor shield wire ground 9 Battery ground 10 Battery power 11 - 12 - 13 - 14 Pressure sensor signal 15 Pressure sensor ground 16 - 17 CAN 1 HIGH 18 CAN 1 LOW 19 CAN 2 HIGH
Other information:
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Blower Unit. Components and components location
Components Location 1. Blower unit assembly Components 1. Blower unit assembly 2. Inlet case [LH] 3. Inlet seal 4. Inlet case [RH] 5. Intake actuator 6.
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Heater & A/C Control Unit (Manual). Repair procedures
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the console upper cover (A). 3. Press the lock pin, separate the console upper cover connectors (A).