Calibrating matrix LED headlights with headlight adjustment unit VAS 621001 — AUDI

Calibrating matrix LED headlights with
headlight adjustment unit
VAS 621001
Special tools and workshop equipment required
Headlight adjustment unit
VAS 621001
Note
The matrix LED headlights are calibrated with the
vehicle diagnostic tester
Vehicle diagnostic tester
.
The dipped headlights are adjusted first in this procedure. Afterwards the matrix main beam function is calibrated.
Special tools and workshop equipment required
Headlight adjustment unit
VAS 621001
The matrix headlights must be calibrated:
If the position of the headlights has been adjusted (i.e. if they have been removed/installed or if securing bolts have been loosened).
If the output module for matrix headlights
A44
/
A45
has been renewed.
If the front camera for driver assist systems has been removed and installed.
If the windscreen has been removed and installed.
If the event memory contains the entry
“no or incorrect basic setting/adaption”
.
Requirements:
Observe requirements for checking and adjusting
Chapter
.
Procedure
Align
VAS 621001
to centre of vehicle at a distance of
a
= 100 mm
Operating instructions of
VAS 621001
.
Ensure that
VAS 621001
is parallel with transverse axis of vehicle. To do so, adjust laser beam of
VAS 621001
so it hits securing bolts for wing at front left and front right
arrows
.
Move
VAS 621001
in front of left headlight and perform parallel check again.
Caution
Danger of dazzling other road users if headlight adjustment unit is not correctly aligned.
Take special care to ensure that the headlight adjustment unit is aligned properly. Only after this has been done can you adjust the headlights so that other road users will not be dazzled.
Performing calibration
Vehicle diagnostic tester
is connected.
Select
Diagnosis
mode and start diagnosis.
Select
Test plan
tab.
Select
Own test
then the following options one after the other:
Body
Electrical system
01 - Self-diagnosis compatible systems
55 - Dynamic headlight range control (MxB) -J431
55 - Headlight range control, functions
55 - Basic setting matrix beam (Repair Group 94)
Further instructions are given by
Vehicle diagnostic tester
during calibration procedure. The dipped headlights must be adjusted first in this procedure
Chapter
.
During the program, you will be prompted to determine/read off the angle of the inner edge of the segment in the left headlight in the headlight adjustment unit and to enter this into the tester.
Align light collector lens centrally with reference segment of headlight.
Press
“§”
button
arrow
in main menu of
VAS 621001
to start measurement procedure.
Indicated on display:
Press button
arrow
twice and wait for a moment until light measurement is active.
Indicated on display:
Press button
arrow
.
Wait for a moment until light measurement has been performed.
Indicated on display:
Angles of inner reference segment edge are displayed.
Enter angle
arrow
of inner edge of reference segment in
vehicle diagnostic tester
. If necessary, note "+/-" sign.
During the program, you will be prompted to determine/read off the angle of the inner edge of the segment in the right headlight in the headlight adjustment unit and to enter this into the tester.
Align
VAS 621001
to centre of vehicle at a distance of
a
= 100 mm
Operating instructions of
VAS 621001
.
Ensure that
VAS 621001
is parallel with transverse axis of vehicle. To do so, adjust laser beam of
VAS 621001
so it hits securing bolts for wing at front left and front right
arrows
.
Move
VAS 621001
in front of right headlight and perform parallel check again.
Align light collector lens centrally with reference segment of headlight.
Indicated on display:
Press button
arrow
.
Wait for a moment until light measurement has been performed.
Indicated on display:
Angles of inner reference segment edge are displayed.
Enter angle
arrow
of inner edge of reference segment in
vehicle diagnostic tester
. If necessary, note "+/-" sign.
After completing calibration, read out event memory and deal with any faults that are present.