Kia Cadenza YG: Head lamp leveling Device / Auto Head lamp leveling Unit Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Body Electrical System / Head lamp leveling Device / Auto Head lamp leveling Unit Repair procedures

Removal
Height Sensor
1.
Remove the height sensor connector (A).

2.
Loosen the mounting bolts(Body: 2EA, chassis: 1EA) from height sensor bracket.
Tightening torque :
3 ~ 5N.m (30 ~ 50kgf.m, 2.21 ~ 3.68lb-ft)

3.
Remove the height sensor.
HLLD (head lamp leveling device) Actuator
1.
Remove the head lamp assembly.
Installation
Height Sensor
1.
Install the height sensor.
2.
Connect the connector.
HLLD (Head Lamp Leveling Device) Actuator
1.
Install the head lamp assembly.
Inspection with GDS
Initialization and diagnosis sequence by using GDS equipment.
Below content summarize the procedure for A/S using GDS.
No.
Procedure
1
Locate vehicle to flat plane
2
Tire check
3
IGN1 ON
4
Head lamp Low Beam ON
5
Connection with diagnostic tool
6
Initial command by diagnostic tool
7
Clear DTC Code
8
IGN1 OFF → ON
9
Re- Connection with diagnostic tool
10
Checking of HLLD output value as 15% and DTC Code
11
HLLD actuating by diagnostic tool command
12
Head lamp mechanical Initial Aiming

   
1)
There’s no loads in vehicle and vehicle should be on flat plane.
2)
Should check of HLLD output value(15%) after initial setting.
3)
Should do first electrical initial setting by diagnostic tool and then mechanical aiming afterward.
1.
Select the vehicle model and "Head lamp leveling".

2.
GDS can operates actuator forcefully, input/output value monitoring and self diagnosis.

3.
To perform functional test on AHLS outputs, select "Actuation Test".

4.
Select " Parameter setting & Zero position Initial".

5.
Confirm that AHLS operate forcefully in "Head lamp leveling" menu.

6.
To check the DTC of the head lamp leveling system, select "Diagnostic trouble codes"

    Description According to driving environment and loading state of vehicle, head lamp lighting direction is changed to keep the driver''s visibility range and to protect the driver''s vision from glare, aiming at safety driving.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Repair procedures

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    Kia Cadenza YG 2016-2021 Service Manual: Troubleshooting

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