Hyundai i-30: Front Radar System / Front Radar Unit

Hyundai i30 (PD) 2018-2024 Service Manual / Advanced Driver Assistance System (ADAS) / Front Radar System / Front Radar Unit

Specifications

Specification

Item	Specification
Power supply (V)	12
Operation voltage (V)	9 - 16

Schematic diagrams

Circuit Diagram

Repair procedures

Inspection

Inspection procedure for vehicle with Forward Collision-Avoidance Assist and Smart Cruise Control system failure

1.	Check the bumper appearance for accident (check the vehicle appearance visually and see bumper replacement history). → In case of the vehicle was involved in an accident, there is a high possibility that the FCA radar is out of the original default position.

2.	Check for contamination of the radar sensor cover of the bumper. →If contaminated, there is a high possibility that the FCA system is deactivated during operation due to the foreign substances.

3.	After turning on the engine, check the FAC warning lamp and DTC. (Refer to the DTC diagnosis guide.)

Removal

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the front bumper. (Refer to Body - "Front Bumper")

3.	Disconnect the front radar unit connector (A).

Remove the front radar unit assembly from vehicle after loosening mounting nuts (A).

Front radar installation nut :

11.0 - 12.2 N·m (1.12 - 1.24 kgf·m, 8.1 - 9.0 lb·ft)

Installation

Install in the reverse order of removal.

•	The vertical installation angle of the unit must be within 2° ± 0.4°. (not 0 degree) ※ Before installing the bumper onto the vehicle, measure the vertical angle of the unit with a protractor as shown.

Connect the vehicle and the diagnosis device and enter the vehicle information.

•	In order to use the diagnosis device normally, maintain the vehicle status as "IG ON". (to prevent system failure)

•	Be careful of discharging the 12V battery when using diagnostic device.

3.	Select "S/W Management" of diagnostic device.

Select "Variant Coding" of "SCC/AEB".

•	Names of diagnostic devices such as Front Radar, Forward Collision-Avoidance Assist, and FCA may differ depending on the model year.

•	Additional procedures follow the description of the diagnostic device.

5.	Align the smart cruise control sensor. (Refer to Advanced Driver Assistance System (ADAS) - "Front Radar Unit")

6.	Install the bumper cover. (Refer to Body - "Front Bumper Cover")

AEB Radar Alignment

The objective of the alignment is to ensure correct SCC performance. In order for the sensor to perform correctly, the sensor must be aligned correctly. The sensor alignment has major impact on road estimation, lane prediction, and target processing. When the sensor is misaligned, the performance of SCC cannot be guaranteed. Therefore, when the sensor is reinstalled or a new sensor is installed on a vehicle, the sensor shall be aligned by service personnel.

•	The sensor must be aligned when;

–	The sensor is reinstalled after removing.

–	A new sensor is installed on a vehicle.

–	The sensor or nearby parts are impacted in a collision.

–	The sensor can not recognize a vehicle ahead.

•	The sensor can not recognize a vehicle ahead.

–	Remove heavy objects, such as luggage in the trunk, from the vehicle.

–	Check wheel alignment.

–	Check the pollution condition of sensor cover

Smart Cruise Control (SCC) Radar Alignment

Stop the vehicle horizontally at a flat place.

•	Install the reflector exactly 2.5m ± 0.1m away from the Front Radar.

•	The reflector has to be installed at same place (height and angle) as front radar center. (If height and angle are different, then adjustment can not be done correctly.)

•	Perform in an area with minimum clearance of 8m front, 4m sides, and 2m above the vehicle.

•	Remove heavy objects from inside of the vehicle (seating area and trunk).

•	Ensure that all tires are filled with spec air pressure.

•	Remove objects (metal plates, resins, etc.) that may cause electric signal interference from the area where sensor alignment is performed.

•	Be sure that the vehicle is not moved and free from vibration when performing sensor alignment (getting in/out or opening/closing doors).

•	Check that radiator grill and sensor cover is not dirty.

•	Check that the wheel alignment is normal.

•	Do not turn OFF the power when performing sensor alignment.

•	Power supplied to the radar sensor must be between 9V-16V.

2.	Mark the center point of emblem (A) and the center point on top of wind glass (B).

3.	Connect the SCC Calibration Laser (SST No. : 09964-C1200) to the Tri-Pod (SST No. : 09964-C1300).

4.	Match the vertical line of laser to (A) and (B) using the SCC calibration laser pointer.

5.	Mark (C) located in 2.4 ~ 2.6m from (A) in front of the vehicle.

6.	Disconnect the SCC Calibration Laser (SST No. : 09964-C1200) from the Tri-Pod (SST No. : 09964-C1300).

7.	Connect the reflector(SST No. : 09964-C1100) to the tripod(SST No. : 09964-C1300) and set the reflector center height to 582mm.

Set the reflector horizontal using the leveler which is built in the tripod(SST No. : 09964-C1300).

•	Balance the level so that the bubble in the level is set between the spec lines.

Check again the radar sensor and the surface of front bumper for the following items with the eyes.

•	Make sure that there is no debris, or reflecting object on the surface of the radar.

•	Make sure that there is no debris, or reflecting object on the radiator grill.

10.

Connect the vehicle and the diagnosis device and enter the vehicle information.

•	In order to use the diagnosis device normally, maintain the vehicle status as "IG ON". (to prevent system failure)

•	Be careful of discharging the 12V battery when using diagnostic device.

11.	Select "S/W Management" of diagnostic device.

12.

Select "Variant Coding" of "SCC/AEB".

•	Names of diagnostic devices such as Front Radar, Forward Collision-Avoidance Assist, and FCA may differ depending on the model year.

•	Additional procedures follow the description of the diagnostic device.

13.	In case of sensor alignment failure, check the alignment conditions, then reperform the sensor alignment procedure.

Description and operation

Description and operation The System may be limited when • The radar sensor or camera is blocked with a foreign object or debris...

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