Hyundai Santa Fe (TM): Immobilizer System / Immobilizer Control Unit. Repair procedures

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Housing Cover")
3.
Disconnect the connector (A) and then remove the IBU (B) after loosening a nut.

Installation
1.
Install the IBU after connecting the unit connector.
2.
Install the glove box housing.
3.
Connect the negative (-) battery terminal.

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

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel.

    Other information:

    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).

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

    Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward "Surging" (repeated alternating acceleration and deceleration) occurs after set

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