october2021 - 51

DIAGNOS TIC S
That is why wiring diagrams can be so helpful,
but an OEM wiring diagram could take up
a whole wall in a conference room, Gattamorta
said. The Jaltest Diagnostics tool has a wiring
diagram for the entire truck. " It shows you how
everything connects to each other and how you go
from system A to system B. You can see the wiring
diagram, see the cables, and how they're connected
to the pins, " he said, adding the information can
simplify repairs.
Hedman said trucks have become too complex
to simply rely on a code reader and a wrench to
diagnose and repair an issue. Today's technicians
must be proficient in multimeters, refractometers,
and other handheld tools, he said.
" Consider the rise in pending faults since the
advent of EPA 10 engines. Technicians can't rely
on dash lamps and active fault codes if they expect
to dispatch a healthy truck. Diagnostic tools that
show pending faults allow proactive repairs to be
made, so issues don't arise when the truck is on
the road, " Hedman said.
With Noregon's JPRO's Data Monitor, technicians
can chart data points across multiple ECUs to help
discover wiring or communication issues. " This
helps technicians discover the general area of a
communication failure and use a wiggle test, multimeter,
or other method to pinpoint the exact wire
or sensor causing the issue, "
Hedman said.
Increased use of electronics
is also placing a more
significant strain on batteries,
and Whitney said battery
analysis tools have become
necessary as the modern
vehicle evolves. " Just consider
how much is expected of
the vehicle battery with
systems such as stop/start
ignitions and the expansive
safety and infotainment
systems, " she said.
Autel's
line of starting
and charging analysis tools
helps technicians analyze
the three components
that comprise the starting
and charging system-the
battery, the starter, and the
alternator-giving a clear
and concise
analysis
that are easy to understand. " For example, the
visual display during a battery diagnosis in JPRO
contains a large graphic consisting of key data
points in their respective areas, helping technicians
quickly learn which items are out of range, "
Hedman said.
Whitney said that scan tools themselves have
advanced significantly as equipment technology
has advanced. " Our tools show freeze frame data
for each of the codes that can show the technician
what was happening prior to the code be setting
off, " Whitney said. " The ability to perform active
tests on components is another vital feature. "
Advanced tools translate into improved diagnostics.
" As technicians like to say, codes tell on
one another, and often one code begets another,
and the tech needs to go deep and find what is
the root of the initial and subsequent codes, "
Whitney said. " That's where the active component
testing becomes an essential feature of a
good diagnostic tool. "
One of the trucking industry's greatest challenges
is the technician shortage, so shops need to
maximize technicians' time, Kotenko said. " Rather
than using the old school method of obtaining a
trouble code, technicians can use a scan to be more
efficient, " he said. " The time savings would at least
be one- to 10-fold. "
" Rather than using the old
school method of obtaining a
trouble code, technicians can use
a scan to be more efficient. "
Thomas Kotenko, a general manager
for NEXIQ Technologies
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each system along the way,
Whitney said. The MS909CV
now comes with a battery analyzer accessory tool
so new tests can be performed wirelessly through
the tablet tool. Technicians can test the battery or
electrical system components individually.
Duane Watson, technical trainer for Bosch
Aftermarket Service Solutions, said knowing the
battery voltage is as important as reading codes
at the time of vehicle diagnosis. Bosch has built a
voltage gauge in its OBD-II diagnostic tool on all of
its ADS scan tools. " These scan tools can be paired
with a BAT 120 battery tester. It allows the scan
tool to be a full-blown battery tester and electrical
system diagnostic tool, " he said.
Hedman said many technicians are visual learners,
so the JPRO tool interface presents graphics
» JPRO's Data Monitor charts data points
across multiple ECUs to help discover
wiring or communication issues.
Noregon
Technicians simply can't compete with the efficiency
of a diagnostic tool when trying to repair
electronic issues, Hedman said, and tools help technicians
find the exact location of a failure, resulting
in a much more streamlined process.
Gattamorta said diagnostic tools can guide
diesel techs through the repair, which can be
helpful for techs not familiar with a particular
piece of equipment and can speed repairs for even
seasoned technicians.
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Phone: (855) 288-3587 * USSUPPORT@AUTEL.COM
AUTEL.COM * MAXITPMS.COM * MAXISYSADAS.COM
©2021 Autel U.S. Inc., All Rights Reserved
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october2021

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