June 2023 - 26
TOOL BRIEFING
was over one degree different than the right
sensor. We ordered a replacement bracket
and performed the calibration.
Diagnosing ADAS is no different than
p Figure 2 - Autel ADAS frame camera
Photo courtesy of Ross Colket
diagnosing a check engine light. ADAS
really can be generalized into two types
of sensors. They are either camera-based
or distance-based. To be specific, with the
distance sensors you have several types
that include ultrasonic, sonar, radar, and
lidar. Diagnostics will be the same basic
diagnostics for all the systems, just different
targets. We have a repeatable strategybased
diagnostic process that we use. First,
we verify the problem and make sure we
know the history of the vehicle. I make it
very clear to my customers and technicians
that if we can't duplicate the problem, do
not waste your time on it. Yes, the vehicle
has a problem, but if we can't duplicate it,
we are just wasting our time. Once we have
duplicated the problem, we will perform
a visual inspection of the vehicle to see if
there is anything obvious. Our next step
is to perform a vehicle-wide scan of the
vehicle's network. Once we have a printout
for the record, we will consult Identifix
for known problems and technical service
bulletins (Figure 6). Depending on the
concern, we may also consult OE service
information. If we have a communication
issue with a sensor, we will go directly to
that sensor to inspect it to make sure that
it is first plugged in and to see if there is
any visible damage.
Most of your ADAS sensors are simple
circuits and have either six or eight wires
(Figure 7). As with any other sensor test,
start with testing for power and ground. If
that is good, then move on to testing the
network communication. Keep in mind
you are going to need an oscilloscope
to see if the network is communicating.
However, if the network is communicating
and you have power and ground, then
simply put, you have a bad sensor. Sensors
can be expensive. Most are around $1,000,
but we ran into a radar sensor on an Acura
that was $7,000.
When it comes to ADAS sensor replacep
Figure 3 - Autel post-scan printout showing ADAS frame placement measurements
Photo courtesy of Ross Colket
26 PTEN JUNE 2023 www.VehicleServicePros.com
ment, some of the sensors are plug and
play and some of the sensors have to be
http://www.VehicleServicePros.com
June 2023
Table of Contents for the Digital Edition of June 2023
EDITOR'S NOTE
NEW PRODUCTS
DIAGNOSTIC TECH
TOOL BRIEFING
TOOL REVIEWS
INNOVATION AWARDS PROFILE
CATEGORY SPOTLIGHT
BIG-TIME BOXES
June 2023 - 1
June 2023 - 2
June 2023 - 3
June 2023 - 4
June 2023 - 5
June 2023 - 6
June 2023 - 7
June 2023 - EDITOR'S NOTE
June 2023 - 9
June 2023 - NEW PRODUCTS
June 2023 - RSC1
June 2023 - RSC2
June 2023 - 11
June 2023 - 12
June 2023 - 13
June 2023 - 14
June 2023 - 15
June 2023 - DIAGNOSTIC TECH
June 2023 - 17
June 2023 - 18
June 2023 - 19
June 2023 - 20
June 2023 - 21
June 2023 - 22
June 2023 - 23
June 2023 - TOOL BRIEFING
June 2023 - 25
June 2023 - 26
June 2023 - 27
June 2023 - 28
June 2023 - 29
June 2023 - TOOL REVIEWS
June 2023 - 31
June 2023 - 32
June 2023 - 33
June 2023 - INNOVATION AWARDS PROFILE
June 2023 - CATEGORY SPOTLIGHT
June 2023 - 36
June 2023 - 37
June 2023 - 38
June 2023 - 39
June 2023 - 40
June 2023 - 41
June 2023 - BIG-TIME BOXES
June 2023 - 43
June 2023 - 44
June 2023 - S1
June 2023 - S2
June 2023 - S3
June 2023 - S4
June 2023 - S5
June 2023 - S6
June 2023 - S7
June 2023 - S8
June 2023 - S9
June 2023 - S10
June 2023 - S11
June 2023 - S12
June 2023 - S13
June 2023 - S14
June 2023 - S15
June 2023 - S16
June 2023 - S17
June 2023 - S18
June 2023 - S19
June 2023 - S20
June 2023 - S21
June 2023 - S22
June 2023 - S23
June 2023 - S24
June 2023 - S25
June 2023 - S26
June 2023 - S27
June 2023 - S28
June 2023 - S29
June 2023 - S30
June 2023 - S31
June 2023 - S32
June 2023 - S33
June 2023 - S34
June 2023 - S35
June 2023 - S36
June 2023 - S37
June 2023 - S38
June 2023 - S39
June 2023 - S40
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