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Kia Sorento: Auto Head lamp leveling Unit Operation - Head lamp leveling Device - Body Electrical System - Kia Sorento XM 2011-2026 Service ManualKia Sorento: Auto Head lamp leveling Unit Operation

Second Generation XM (2011-2026) / Kia Sorento XM 2011-2026 Service Manual / Body Electrical System / Head lamp leveling Device / Auto Head lamp leveling Unit Operation

Operating Procedure
1.
Suspension angle change resulted from vehicle's load change.
2.
Height sensor signal change
3.
Calculation of HLLD signal by AHLS ECU algorithm.
4.
Sending a proper signal to HLLD (head lamp levelling device) and driving actuator.
5.
Actuation of HLLD and compensation of headlamp beam range.
Operating Condition
•
IGN1 ON & Head lamp low bean ON
•
Sensor angle changed over 1° and keeping 10~12seconds with vehicle standing.
•
Sensor angle changed over 1° and keeping 10~12seconds and when vehicle runs over 20km/h with constant speed.
•
Leveling control is off after controlling HLLD for few seconds.
•
To eliminate mechanical tolerance, the lamp position is always reached from the lower side.
System characteristics
1.
Height sensor & unit
No.
 Components
1
 Height sensor
2
 Sensor mounting bracket
3
 Link
4
 Mounting screw

A.
Using a Micro-processor, percept the operation lever's mechanical angle change or speed signal.
B.
As an actuator control device of inner control program, mounting on the rear center arm.
Auto Head lamp leveling Unit 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 gl ...

Auto Head lamp leveling Unit Removal
Height Sensor & Unit 1. Disconnect the negative(-) battery terminal. 2. Remove the height sensor connector (A). ...

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