february2022 - 43

DIAGNOS TIC S
Bruno Gattamorta, vice president of sales
and marketing for Cojali USA Inc., said sensors
have different power sources, and there are two
primary ways they get fed power, either directly
from the battery or through the KL15 and KL30.
Cojali's tool can provide a picture of when
the code is picked up and provide component
information as well as operating range, pressure,
and additional information. " That gives
you an understanding of what the component
looks like. We will also give you the process
to swap the component out or repair it, "
Gattamorta said.
Cojali's tool also offers two types of wiring
diagrams-the full vehicle wiring diagram and
the system wiring diagram, which shows the
component and the electronics. " Without the
wiring diagram, you're lost. It is a lot of guesswork,
and you can't do it, " Gattamorta said.
" We're giving you the information when you
need it with the wiring diagram. "
Thomas said that Noregon has noticed a
significant increase in faults related to ADAS.
" These systems are heavily reliant on sensors
and electronics, meaning an electrical issue
can directly influence the safety of a truck, its
driver, and others on the road, " he explained.
Many electrical issues don't trigger a dash
lamp, though, meaning the driver or technician
has no indication that there may be an active
issue that deserves attention.
" As vehicles become more connected and
increase their reliance on sensors and electronics
to safely operate, remote diagnostics
become much more important, " Thomas said.
" Without a dash lamp illuminated, remote
diagnostics are the first line of defense to notice
these issues early-or even pick up on intermittent
issues and have their maintenance
professionals decide when to down the truck
for repairs. "
Not only do diagnostic tools help by providing
real-time key data points like voltage readings
and bidirectional tests for isolating the
issue, but they also offer technicians guided
diagnostics and troubleshooting assistance.
" For example, JPRO's Fault Guidance feature
walks users down the ideal troubleshooting
steps to locate the root cause of a problem,
removing much of the guesswork, especially
for less experienced technicians, " Thomas said.
Fleets can maximize uptime when issues
are caught early and not allowed to fester.
" A proactive maintenance approach will
yield better uptime results than a reactive
one, so it's important to use the tools at your
disposal to always know the health status of
your trucks and to perform thorough diagnosis
whenever possible to avoid foreseeable
issues, " Thomas said.
Time is money, and for technicians it is all
about return on investment. Freeman said
diagnostic tools save time and can bring
customers back. " It walks you step by
step and even shows you where
the batteries are located, "
Freeman said, adding that
Autel's MX909CV also
has a digital multimeter.
" Technicians don't have to
run back to their toolbox
to grab a multimeter. "
It
is
critical
that diagnostic
providers keep their technology
current. Alexander said providers
must stay in contact with original
equipment manufacturers so
they can update software regularly.
" Vehicle manufacturers will
frequently release new updates and patches, "
he said, adding that Thinkcar recommends
users update software every 30 days. " It gets
technicians in the habit of doing it, and the
more frequently you do it, the faster it is. "
With the exception of some very routine
elements, it is nearly impossible for technicians
to work on modern vehicles without a
diagnostic tool, Alexander said. " From our
side of it, we really see a diagnostic tool to
be imperative to check on the vehicle vitals.
Without that, it is kind of like going to the
doctor and the doctor not having a stethoscope, "
he explained.
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February 2022 | FleetMaintenance.com
43
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february2022

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