Mazda 2002 Millenia Spezifikationen Seite 236

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T20
EXTERIOR LIGHTING SYSTEM
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AUTO LEVELING CONTROL UNIT
A6E811201052T07
Function
In order to prevent the blinding of oncoming traffic and improve visibility, the auto leveling control units
automatically control the optical axis direction for optimal illumination based on signal inputted from the ABS
(DSC) HU/CM and the auto leveling sensor.
With an on-diagnostic function included for auto leveling control unit, servicing based on display of DTCs using
the SST (WDS or equivalent) has been improved.
Structural View
Strucutre And Operation
The auto leveling control units (main and sub) are installed within the discharge control units, located under the
front combination lights.
The auto leveling control unit (main) verifies changes in vehicle speed and attitude based on signal inputted
from the ABS (DSC) HU/CM, and front and rear auto leveling sensors. The unit then calculates the optimal
direction for the optical axis and sends signal to the auto leveling control unit (sub).
Based on the calculation of the optical axis adjustment amount, the auto leveling control unit controls the
headlight leveling actuator.
Caution
After performing the following service items, configuration and zeroset must be performed using
the WDS or equivalent.
×:Applied
:Not applied
*1 : Execute headlight aiming for both headlights and together with headlight zeroset (which is performed by auto
leveling control unit (main))
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A6E8112T120
1 Auto leveling control unit (main)
2 Auto leveling control unit (sub)
Service Item
Auto Leveling
Control Unit
Configuration
Headlight
Zeroset
*
1
Headlight
Aiming
*
1
1
Auto leveling control unit (main or sub) replaced with new
part.
×××
2 Front combination light removal/installation ×
3
Front auto leveling sensor or rear auto leveling sensor
replaced with new part, or harness or connector replaced
with new part.
××
4
Front auto leveling sensor connector or rear auto leveling
sensor connector removal.
××
5
Front auto leveling sensor or rear auto leveling sensor
removal/installation.
××
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