september2022 - 30
DIAGNOSTIC TECH
Figure 9- Axis values after new windshield and lane camera calibration
Figure 8- Factory Toyota Rav4 windshield OEM bracket
for best practices around static camera calibration best practices.
There are a number of aftermarket tooling solutions
available. Personally, I have used the Autel Complete Solution
(Red Frame w/cameras), the Bosch DAS3000, and others such
as the John Bean EZ-ADAS. All three of these systems have
focused on making the technician more productive without
sacrificing accuracy. But beware, you should get in the habit
of making sure that the target sizing aligns with what the
manufacturer originally specified.
CASE STUDY - 2021 TOYOTA RAV4
My shop had a client inquire about the behavior of their
lane keeping system. Specifically, the lane tracing assist
(LTA) system was allowing the vehicle's right-side tires to
cross over the right-side lane lines. When in the lane keep
sssist (LKA) mode, the vehicle would warn the driver about
approaching the left lane line about what one would expect,
but for the right side, it was all happening well after the
right-side tires passed over the lane lines. During the intake,
we discovered the vehicle had recently had a replacement
windshield installed, and this is when the symptoms surfaced.
We commenced with analyzing the vehicle data by
performing a complete health check, where there were no
DTCs stored in any of the systems related to the complaints.
Using Toyota Techstream, we looked at the vehicle control
history and could see that the vehicle recently had the
30 Professional Distributor I September 2022 I VehicleServicePros.com
Figure 10- Toyota 2021 Rav4 windshield: OEM vs. aftermarket closeup
camera calibrated, and the calibration process had completed.
We then looked at the initial axis value that was recorded
during that calibration and saved a copy (Figure 6). Looking
at horizontal axis value had me concerned.
From my understanding, this is a pixel value used in
establishing the baseline relationship to the imaging sensor
with a known vehicle datum reference such as the vehicle
centerline. The windshield mounted camera on this vehicle
is vehicle centerline. I usually see these vehicles with that
horizontal number in the ~630 range.
My next inspection was to look at the windshield branding.
I found the windshield was from the same supplier as the
OEM, but it was missing the OEM naming. I then decided
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september2022
Table of Contents for the Digital Edition of september2022
Editor's Note: Is safety top of mind for you?
Sneak Peek
Most Wanted
In Focus
Cover Story: A safe bet
Diagnostic Tech: Putting the 'A' in ADAS
Show Me Your Truck: A new truck without the shine
Go Sell Something: Be the Best
Driving Sales: Diagnostic Test Equipment
Tales From the Road: All in the family
september2022 - 1
september2022 - 2
september2022 - 3
september2022 - Editor's Note: Is safety top of mind for you?
september2022 - 5
september2022 - Sneak Peek
september2022 - 7
september2022 - 8
september2022 - 9
september2022 - 10
september2022 - 11
september2022 - 12
september2022 - 13
september2022 - Most Wanted
september2022 - 15
september2022 - In Focus
september2022 - 17
september2022 - 18
september2022 - 19
september2022 - Cover Story: A safe bet
september2022 - 21
september2022 - 22
september2022 - 23
september2022 - 24
september2022 - 25
september2022 - Diagnostic Tech: Putting the 'A' in ADAS
september2022 - 27
september2022 - 28
september2022 - 29
september2022 - 30
september2022 - 31
september2022 - Show Me Your Truck: A new truck without the shine
september2022 - 33
september2022 - Go Sell Something: Be the Best
september2022 - 35
september2022 - Driving Sales: Diagnostic Test Equipment
september2022 - 37
september2022 - 38
september2022 - 39
september2022 - 40
september2022 - 41
september2022 - Tales From the Road: All in the family
september2022 - 43
september2022 - 44
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https://www.nxtbook.com/endeavor/professionaldistributor/february2021
https://www.nxtbook.com/endeavor/professionaldistributor/Diagnostic_Process_December_2020
https://www.nxtbook.com/endeavor/professionaldistributor/Professional_Distributor_December_2020
https://www.nxtbook.com/endeavor/professionaldistributor/october2020
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