Kia Sorento: Auto Head lamp leveling Unit Operation
| 1. |
Suspension angle change resulted from vehicle's load change.
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| 2. |
Height sensor signal change
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| 3. |
Calculation of HLLD signal by AHLS ECU algorithm.
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| 4. |
Sending a proper signal to HLLD (head lamp levelling device) and
driving actuator.
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| 5. |
Actuation of HLLD and compensation of headlamp beam range.
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| • |
IGN1 ON & Head lamp low bean ON
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| • |
Sensor angle changed over 1° and keeping 10~12seconds with vehicle
standing.
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| • |
Sensor angle changed over 1° and keeping 10~12seconds and when
vehicle runs over 20km/h with constant speed.
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| • |
Leveling control is off after controlling HLLD for few seconds.
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| • |
To eliminate mechanical tolerance, the lamp position is always
reached from the lower side.
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| 1. |
Height sensor & unit
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Auto Head lamp leveling Unit Description
Auto Head lamp leveling Unit RemovalTroubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers
indicate the priority of the like cause of the problem. Check each part in order.
...
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Remove the drive belt.
(Refer to Timing System - "Drive Belt")
2.
Remove the A/C compressor.
(Refer to Heating, Ve ...