Hyundai Santa Fe (TM): 4WD Control System / Schematic diagrams

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / 4 Wheel Drive (4WD) System / 4WD Control System / Schematic diagrams

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

    Power Flow Diagram 4WD ECU Input&Output Diagram

    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.

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Auto Defogging Actuator. Repair procedures

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the auto defogging connector. 3. Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 6.

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Troubleshooting

    Diagnosis with Diagnostic tool 1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool). The diagnostic system (Diagnostic tool) provides the following information.

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