Professional_Tool_And_Equipment_News_0619 - 44

p Image of side warning sensor on Toyota Tacoma. It should be noted
if paint repairs are done, the original color must be matched.

p Image of front ADAS sensor on Toyota Tacoma.

with glass that is not consistent with the
OE requirements of clarity or even the
angle of the glass, which can distort the
camera's image. The most common issue,
and possibly the worst, is camera misalignment. Even some seemingly simple
tasks such as replacing a headlamp or a
radiator can affect the alignment of a
camera or module.
You must keep in mind that the camera provides an image to its module,
which uses the image to determine if a
potential hazard exists. If the image is
distorted, or even more common, the
image is not reporting the location of
the hazard in the correct relationship to
the position of the vehicle, the module
will not be able to correctly determine if
a hazard really exists. A camera that has
been moved as little as a degree or two
from its calibrated position can change
the reported position of obstacles by as
much as 20 feet closer or further from
the vehicle.
In order to assure each component
is reporting potential hazards correctly,
calibrating components to the position
of the vehicle is necessary.
Repairs that will likely require an
ADAS calibration:
* Glass replacement
* Interior or exterior mirror
removal or replacement

PTEN

JUNE 2019

Thrust alignment
Steering angle reset
Suspension modifications
Any repair affecting ride height,
including tire or wheel size changes
* Removal or repositioning of any
sensor, camera, radar, or
LIDAR unit
It is essential to recognize ADAS components while repairing vehicle systems
and take care to position them correctly
and calibrate them after any repair.
Because these systems are relatively
new, some vehicles have required software updates (reprogramming) in some
of their modules, which may also necessitate performing a calibration of the sensor or camera.
Aligning or calibrating cameras,
radars, or LIDAR systems is vehicle
specific, although the steps prior to
preparing most vehicles for calibration
are similar.
Calibration Preparation Steps:
* Assure tires are inflated to
specification
* Ensure fuel tank is full
* All windows, sensors, and
cameras are clean
* Remove extra cargo from
passenger and trunk
* Ensure suspension or tires have
not been modified

www.VehicleServicePros.com

*
*
*
*

Some vehicles utilize a dynamic
test only to calibrate the camera to the
position of the vehicle. A dynamic test
starts with assuring the mountings are
secure for the imaging device, and that
the vehicle' s electrical system is fully
charged and has no issues. Use vehicle
specific information to enable the system to start a dynamic calibration. This
is typically accomplished by using your
scan tool to place the system in a calibration mode, driving the vehicle on a
clearly marked highway, and driving it
at a specific speed and time determined
by the vehicle manufacturer.
Some issues that can prevent a calibration from completing include lanes
that are not clearly marked, heavy traffic,
rain, snow or fog, or even Botts Dots type
of lane markings instead of traditional
painted lines. Excess window tint or
driving into the sun may also affect the
ability to perform a calibration.
Other vehicles use a static calibration
for calibrating their systems. In order to
perform a static calibration, prepare the
vehicle according to the vehicle manufacturer's specific instructions found in
your information source.
The sensors must be aligned both vertically and horizontally to the vehicle's
centerline. Most static calibrations also
require specific tools or targets designed

http://www.VehicleServicePros.com

Professional_Tool_And_Equipment_News_0619

Table of Contents for the Digital Edition of Professional_Tool_And_Equipment_News_0619