Auto Leveling Control Unit - Mazda 6 Training Manual

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AUTO LEVELING CONTROL UNIT

Function
• In order to prevent the blinding of oncoming traffic and improve visibility, the auto leveling control units
automatically control the optical ais 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
1 Auto leveling control unit (main)
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 ais and sends signal to the auto leveling control unit (sub).
• Based on the calculation of the optical ais 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.
Auto leveling control unit (main or sub) replaced with new
1
part.
2 Front combination light removal/installation
Front auto leveling sensor or rear auto leveling sensor
3 replaced with new part, or harness or connector replaced
with new part.
Front auto leveling sensor connector or rear auto leveling
4
sensor connector removal.
Front auto leveling sensor or rear auto leveling sensor
5
removal/installation.
*1 : Eecute headlight aiming for both headlights and together with headlight zeroset (which is performed by auto
leveling control unit (main))
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T–20
EXTERIOR LIGHTING SYSTEM
Service Item
2 Auto leveling control unit (sub)
Auto Leveling
Headlight
Control Unit
Zeroset
Configuration
×
—
—
—
—
A6E811201052T07
A6E8112T120
×:Applied
—:Not applied
Headlight
* *
1 Aiming 1
× ×
— ×
× ×
× ×
× ×