Kia Sportage: Assist Emergency Braking(AEB) System / Repair procedures

Kia Sportage QL (2015-2019) Service Manual / Brake System / Assist Emergency Braking(AEB) System / Repair procedures

Inspection
AEB function ON / OFF switch was included to USM (User Setting Menu) and the state of the factory is ON.
When the IGN On, maintain ON condition by default. And does not reflect the driver settings when next IGN On.
If turned the ESC function Off, the AEB function is turned off.
The ON/OFF for AEB is included in the USM (User Setting Menu) and the default is ON.
While IGN is On, it stays at ON, however, the driver's settings do not last next time when IGN is newly On.
When VDC is Off, AEB is also turned Off.
Removal
1.
Turn the ignition switch off and disconnect the battery (-) terminal.
2.
Remove the front bumper cover
(Body - Refer to the "front bumper")
3.
Remove the front bump low stiffener assembly.
4.
Disconnect the AEB radar connector (A).

LDWS camera
AEB, contrary to SCC (Smart Cruise Control) has to work on a stationary car so the system uses the Fusion Target system to combine radar and camera.
1.
Disconnect the battery (-) cable.
2.
Remove the camera.
(Refer to Body Electrical System - "Lane Departure Warning System (LDWS)")
Installation
AEB radar
1.
Installation is the reverse of removal.
2.
Perform AEB variant coding
3.
Perform the AEB radar alignment.
LDWS camera
1.
Installation is the reverse of removal.
2.
Perform Service Point Target Auto Calibration (SPTAC).
(Refer to Body Electrical System - "Lane Departure Warning System (LDWS)")
Adjust the alignment
When to perform the AEB radar alignment
When you remount the radar after removing it.
When you mount a new product.
When the sensor or the surrounding part received a strong impact after a light collision.
When it cannot detect a preceding car while driving.
When you replaced or null-adjusted the steering angle sensor (SAS).
  
Things to do before a sensor alignment.
Things to do before a sensor alignment.
Remove heavy objects from the interior of the vehicle (passenger space and trunk)
Adjust the tire pressure level as recommended.
Check the wheel alignment.
Check if the sensor cover is clean.
Remove heavy objects from the interior of the vehicle (passenger space and trunk)
Adjust the tire pressure level as recommended.
Check the wheel alignment.
Check if the sensor cover is clean.
Alignment adjusting
No.
Process
Description 
1
Mounting the sensor
• Mount the radar sensor on the proper position of the vehicle bumper.
(Check if the bracket or radar is damaged.)
2
Keep the car stationary.
• Fix the car on a lift or a flat surface to maintain the car's horizontality with the ground.
3
Checking the car
• Make sure the interior of the car is empty
(including the trunk).
• Check if the front of the radar is clean.
• Check the allowed tire pressure and suspension.
• Check the radar sensor is correctly mounted and wired.
4
Calibrating the vertical angle (by a level meter)
• Use a digital meter to measure the alignment. If necessary, adjust the screw to calibrate the angle
(allowance of vertical angle: ±1.5° or less).
5
Calibrating the horizontal angle (driving)
1) Turn the Ignition on
(Red light should be on.).
2) Use the GDS diagnosis equipment and start alignment.
3) After the startup, drive the car at 50kph (30mph) or faster for five minutes.
4) If the alignment is complete while driving, the warning light on the cluster is turned off.
6
Check if the alignment is complete.
•  The alignment has been completed through the horizontal automatic alignment. 
(If the warning light is on after the alignment is done, check if the bracket or vehicle body is damaged.)

  
At the time of AEB radar alignment, vertical and horizontal processes should be done, respectively.
Adjusting the radar sensor
[Vertical calibration]

  
Use an electronic tiltmeter for vertical alignment of the sensor, if not available, use a Bubble Meter.
Adjusting the screw for vertical alignment
Changes after rotational calibration: 1.08 degrees.

[Horizontal calibration]
1.
For horizontal alignment of the sensor, access GDS and select AEB while the vehicle is turned on
  
Remove DTC cords before starting the sensor alignment.

2.
Select the AEB calibration.
3.
Select C2.
  
Do not select the C1 while adjusting the INLINE vertical alignment.
4.
Perform the alignment of the driving mode sensor before driving. On the console, check if the red warning light is On.
  
The sensor alignment generally takes 5-10 minutes but it may vary based on the road and/or driving conditions..
To expedite the sensor alignment, comply with the following while driving.
Driving conditions to expedite the sensor alignment
Achieve 50km/h or higher speed within five minutes of driving.
Drive on a road with no curves or slopes.
Drive on a thickly coated and wide asphalt road.
Drive on a road with reappearing fixed objects (metallic materials such as streetlight, guardrails).
Drive on a road in a dry and fine weather without snow or rain.
Factors stopping or delaying the sensor alignment process
Drive on a road with a severe curve within 100 m ahead.
While driving at a speed lower than the required speed or at a stationary state (Traffic light).
Drive in a tunnel or below an overpass.
Excessive steering in the right/left direction or changing lanes.
Drive on a road with not many reappearing fixed objects.
  
While driving for sensor alignment, pay attention to the following precautions.
Obey the speed limits.
Do not hurry to shorten the alignment time and drive safely according to the road conditions.
Do not operate the GDS device, nor watch the GDS screen long enough to disturb driving.
Always operate the GDS device while your car is stopped.
5.
When the sensor alignment is complete, the warning light on the console is turned off.
6.
Check if the alignment is complete.
  
If the alignment has not been completed, check the horizontal angle through GDS.
If the horizontal angle is over ±3 degrees, check the back beam or mounting assembly. If they are okay, replace the radar unit.
After replacing the radar unit, you need to perform the sensor alignment again.

Schematic diagrams
Schematic diagram Terminal Function NO. Terminal function 1 B+ 2 NC ...

Body (Interior and Exterior)
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