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Kia Sedona: Auto Head lamp leveling Unit Troubleshooting - Head lamp leveling Device - Body Electrical System - Kia Sedona YP Service ManualKia Sedona: Auto Head lamp leveling Unit Troubleshooting

Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Body Electrical System / Head lamp leveling Device / Auto Head lamp leveling Unit Troubleshooting

Inspection with GDS
Initialization and diagnosis sequence by using GDS equipment.
The content below summarizes 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 load 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 "Auto Head Lamp Leveling System (AHLS)"

2.
GDS can operate actuator by force, monitor input/output values and perform 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"
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