Hyundai Elantra (CN7): Rear Corner Radar System / Troubleshooting

Hyundai Elantra (CN7) 2021-2026 Service Manual / Advanced Driver Assistance System (ADAS) / Rear Corner Radar System / 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.
(1)
Fault Code Searching : Checking failure and code number (DTC)
(2)
Data Analysis : Checking the system input/output data state
(3)
Actuation test : Checking the system operation condition
(4)
S/W Management : Controlling other features including system option setting and zero point adjustment
2.
Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel, and turn on the Diagnostic tool.
3.
If diagnose the vehicle by Diagnostic tool, select "DTC Analysis" and "Vehicle".

4.
If check current status, select the "Data Analysis" .

5.
Select "BCW", if you want to check current data of BCW system.

6.
If you want to check each module operation forcefully, select "Actuation test".

    DescriptionRear Corner Radar is a system that measures the relative speed and distance from the following vehicles by using two electromagnetic wave radar sensors attached to the rear bumper, and detects any vehicle within the blind spot zone and gives off alarm.

    Components1. Rear corner radar unit2. Speaker3. Warning indicator

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Rheostat

    Components and components location Components Repair procedures Replacement1.Disconnect the negative (-) battery terminal.2.Remove the crash pad lower panel (A).(Refer to Body - "Crash Pad Lower Panel")3.Loosen the mounting screw and remove the crash pad lower switch (A).

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Mood Lamp

    Repair procedures RemovalMood lamp unit1.Disconnect the negative (-) battery terminal.2.Remove the main crash pad assembly.(Refer to Body - "Main Crash Pad Assembly")3.Loosen the mounting screws and remove the main crash pad air duct (A).4.Loosen the mounting screws and remove the mood lamp unit (A).

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