December 2022 - S6

HYBRID DIAGNOSTICS
Common diagnostics and trends
in hybrid and electric vehicles
Attendees of ASE's " NAPA - Hybrid and Electric Vehicle Update " webinar
learned about high-voltage tools, trends, and common diagnostic issues.
By Kayla Oschmann
W
hat we will see in vehicles
14 to 20 years from now will
be completely different than
what we are seeing now. That is what
technicians and shop owners heard
during a National Institute for Automotive
Service Excellence (ASE) webinar.
" Technicians need to be up to date and
onboard to work on electric vehicles (EVs), "
said Jason Gloria, ASE Master Technician
and NAPA Autotech Instructor. " Electric
vehicles are our future, and they're not
going away. "
Gloria hosted ASE's webinar entitled
" NAPA - Hybrid and Electric Vehicle
Update " and identified several key topics for
techs and shop owners to beware of when
working on hybrid and electric vehicles.
SAFETY FIRST
Although manufacturers have built-in
safety features within the high-voltage
system, technicians still need to take the
right steps to remain safe.
First and foremost is using the right
tools. Special tools include a CAT III meter
and leads as well as high-voltage rubber
gloves and protective outer leather gloves.
It's important to self-check the rubber
gloves before every use. To do so, Gloria
recommends filling the gloves with air,
then roll up the cuffs to check for leaks.
Secondly, when working on EVs, one
must first disable the high-voltage system.
Every EV will have service disconnects.
When a battery service disconnect
is pulled out, a sensor will shut down
the relays that connect the battery to the
6 DECEMBER 2022 VehicleServicePros.com
vehicle, disconnecting the power from the
battery. Since there's still power in the battery,
technicians still need to be careful
when working.
It's only safe to probe the high voltage
circuits after the service disconnect is
opened, the capacitors have bled down,
and DMM confirms 0V in the system,
Gloria notes. Once confirmed, it's then
safe to continue working with high-voltage
gloves. Gloves are always needed when
working inside the battery assembly until
voltage levels are safe (12V or less).
THE FUTURE OF EVS
Tesla may not have come out with the first
electric vehicle, but they are the ones who
" made electric vehicles fun. "
" It's the whole reason we are where
we are, " Gloria noted. " Without Tesla, all
these manufacturers wouldn't be making
electric vehicles. "
The original Tesla, the Model S, was
the one that made an impact (not the
Roadster). The Model S consisted of 16
battery modules with each module holding
444 Panasonic 18,650 battery cells, similar
to those found in flashlights.
Now, Tesla's Model Y is fitted with
4680 battery cells. They also created a tabless
design to reduce electron flow distance
- making it very efficient and eliminating
thermal issues.
When it comes to Ford, the manufacturer
took the No. 1 selling vehicle
in the U.S. - the F-150 truck - and
made it an all-electric truck. By going
electric, they are taking people to the
next step to adopting electric vehicles,
Gloria said. It can do everything the
gasoline-powered truck can do, plus it
can power a house for three days from
a full charge.
Most vehicle manufacturers have
plans in effect to eliminate ICE vehicles
as soon as 2035, if not earlier.
Same with state and federal legislation.
There are already 12 states that have signed
legislation in place to ban the sale of new
ICE vehicles by 2035.
Photo Courtesy of NAPA
http://www.VehicleServicePros.com

December 2022

Table of Contents for the Digital Edition of December 2022

EDITOR'S NOTE
NEW PRODUCTS
TOOL BRIEFING
DIAGNOSTIC TECH
TOOL REVIEWS
CATEGORY SPOTLIGHT
TOP 100 PRODUCTS
SEMA/AAPEX EDITOR'S PICKS
INNOVATION AWARDS PROFILE
SEMA/AAPEX WRAP UP
BIG-TIME BOXES
Diagnosing Progress
Common diagnostics and trends in hybrid and electric vehicles
Diagnosing faults on modern vehicles
The real cause of P0420/P0430 DTCs
How diagnostic tools cut through the ADAS confusion
When the tools become the tutor
Diagnostic products
December 2022 - 1
December 2022 - 2
December 2022 - 3
December 2022 - 4
December 2022 - 5
December 2022 - 6
December 2022 - EDITOR'S NOTE
December 2022 - NEW PRODUCTS
December 2022 - 9
December 2022 - 10
December 2022 - RSC1
December 2022 - RSC2
December 2022 - 11
December 2022 - TOOL BRIEFING
December 2022 - 13
December 2022 - 14
December 2022 - 15
December 2022 - 16
December 2022 - 17
December 2022 - DIAGNOSTIC TECH
December 2022 - 19
December 2022 - 20
December 2022 - 21
December 2022 - TOOL REVIEWS
December 2022 - 23
December 2022 - 24
December 2022 - 25
December 2022 - CATEGORY SPOTLIGHT
December 2022 - 27
December 2022 - 28
December 2022 - 29
December 2022 - 30
December 2022 - 31
December 2022 - TOP 100 PRODUCTS
December 2022 - 33
December 2022 - 34
December 2022 - 35
December 2022 - SEMA/AAPEX EDITOR'S PICKS
December 2022 - 37
December 2022 - INNOVATION AWARDS PROFILE
December 2022 - SEMA/AAPEX WRAP UP
December 2022 - 40
December 2022 - 41
December 2022 - BIG-TIME BOXES
December 2022 - 43
December 2022 - 44
December 2022 - S1
December 2022 - S2
December 2022 - S3
December 2022 - Diagnosing Progress
December 2022 - S5
December 2022 - Common diagnostics and trends in hybrid and electric vehicles
December 2022 - S7
December 2022 - Diagnosing faults on modern vehicles
December 2022 - S9
December 2022 - The real cause of P0420/P0430 DTCs
December 2022 - S11
December 2022 - How diagnostic tools cut through the ADAS confusion
December 2022 - S13
December 2022 - S14
December 2022 - S15
December 2022 - When the tools become the tutor
December 2022 - S17
December 2022 - S18
December 2022 - S19
December 2022 - S20
December 2022 - Diagnostic products
December 2022 - S22
December 2022 - S23
December 2022 - S24
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