Kia Forte: Blind-Spot Radar / Blind-Spot Radar Unit

Kia Forte 2019-2024 (BD) Service Manual / Body Electrical System / Blind-Spot Radar / Blind-Spot Radar Unit

Components and components location
Components Location
[4DR]

1. Blind-Spot Radar Unit (Master)
2. Blind-Spot Radar Unit (Slave)

[5DR]

1. Blind-Spot Radar Unit (Master)
2. Blind-Spot Radar Unit (Slave)

Schematic diagrams
Circuit Diagram

Repair procedures
Removal
  

lf replacement of the bracket or extension wire of blind-spot radar unit is required, it is recommended to surely replace the defective part only with a new one, not the whole blind-spot radar unit.

1.

Disconnect the negative (-) battery terminal.

2.

Remove the rear bumper assembly.

(Refer to Body - "Rear Bumper Assembly")

3.

Disconnect the connector (A) and then remove the blind-spot radar unit (B) by loosening the nuts.

Tightening torque :

8.8 - 10.8 N·m (0.9 - 1.1 kgf·m, 6.5 - 8.0 lb·ft)

  

Be careful not to damage the bracket when removing the BCW unit.

[4DR]

[5DR]

  

In the following cases, replace the extension wire or bracket.

1)

If the bracket is physically deformed or damaged.

-Remove the bracket (A) from the BCW unit by loosening the screws.

[4DR]

[5DR]

2)

If the connector or wire is damaged.

-Remove the extension wire (A) after separating the mounting clip.

[4DR]

[5DR]

Installation
1.

Install in the reverse order of removal.

  

The shapes of the LH and blind-spot radar units are different. Therefore, take notice when installing the blind-spot radar units.

After the replacement of blind-spot radar unit or bracket or wire, perform the radar calibration procedures. (If do not calibrate the sensor angle, it can cause the malfunction of blind-spot radar system.)

(Refer to Blind-Spot Radar Unit - "Adjustment")

Adjustment
  

When a failure code [C2702 (Master)] or [C2703 (Slave)] occurs, check the following before performing correction.

Check the vehicle condition and whether the radar unit or bracket is deformed (mounting angle, twisted vehicle body, etc.).

Check the nut tightening. Check if there is any foreign substance.

If you found any problem in the radar unit, bracket, or nut tightening, correct the problem or replace the component. If there is no problem, mount the bumper back and perform radar calibration using the KDS.

Correcting the blind-spot radar angle

  

Perform the task on a level place.

Perform the task after checking the tire pressure.

1.

Remove the rear bumper assembly.

(Refer to Body - "Rear Bumper Assembly")

2.

Create the center line of vehicle by using the blind-spot radar unit correction tool set (09958-3T000 or 09958-3T500).

[9958-3T000]

(1)

Attach a vertical plumb (09958-3T010) on the hood, and lower the plumb (A) to the ground so that it passes through the center of the emblem.

(2)

Install an optical receiver (09958-3T020) below the plumb (A).

  

When you install the optical receiver (special tool : 09958-3T020), adjust the tripod (A) so that the optical receiver is level with the ground.

Check the level by looking through the level checking window (B).

Make sure that the plumb (D) is positioned above the hole (C) of the optical receiver as shown in the picture (A).

Make sure that the front of the optical receiver faces the rear of the vehicle.

(3)

Attach a vertical plumb (09958-3T010) on the trunk, and lower the plumb (A) to the ground so that it passes through the center of the emblem.

[4DR]

[5DR]

(4)

Install the rear setting jig (09958-3T030) so that its hole is placed directly under the plumb (A).

[4DR]

[5DR]

(5)

Place the laser support (09958-3T040) at a location '2m' away from the rear of the vehicle and install the level laser (09958-3T060) above the laser support.

[4DR]

[5DR]

  

Move the level laser (09958-3T060) slowly to left or right to form a center line.

When the laser beam goes through the hole of the rear setting jig and the level laser is placed at the center of the optical receiver, a buzzer sounds and the center line is formed on.

[9958-3T500]

(1)

Attach a vertical plumb (09958-3T010) on the hood, and lower the plumb (A) to the ground so that it passes through the center of the emblem.

(2)

Mark the center point below the plumb (A).

(3)

Attach a vertical plumb (09958-3T010) on the trunk, and lower the plumb (A) to the ground so that it passes through the center of the emblem.

[4DR]

[5DR]

(4)

Mark the center point below the plumb (A).

[4DR]

[5DR]

(5)

Pass the string through the bottom of the vehicle from the rear of the vehicle to the front and fix the string to the center point (A) of the front of the vehicle.

(6)

Fix the string to the point (C) about 1.5 - 2m from the back of the vehicle so that it passes the rear center point (B).

3.

Tighten the nuts after removing the BCW radar absorber (A) by loosening the mounting nuts. (Only 5DR)

4.

Mount the fixing adaptor (09958-3T080) on the radar unit and fix the level laser (09958-3T070).

[4DR]

[5DR]

5.

Measure the horizontal angle.

Specified angle : 4DR : 54° / 5DR : 52°

[9958-3T000]

(1)

Install an angle measuring plate (09958-3T050) at a location where the center line laser beam (A) and the horizontal laser beam (B) cross each other.

(2)

Measure the angle (C) between the center line (A) of the angle measuring plate and the horizontal laser beam (B) using a digital protractor (09958-3T090).

[9958-3T500]

(1)

Measure the angle (C) between the center line (A) of the angle measuring plate and the horizontal laser beam (B) using a digital protractor (09958-3T090).

6.

Measure the vertical angle of the blind-spot radar unit by using the digital inclinometer (09958-3T100).

Specified angle : 90°

7.

Install the BCW radar absorber from the BCW unit. (Only 5DR)

8.

After checking and correcting the blind-spot radar unit angle, perform the BCW radar calibration procedure using the KDS.

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