March 2023 - 27

Unplugged Performance located in Los Angeles. We've seen a
few Model 3's and Y's requiring rear camber adjustment and their
replacement control links work well (Figure 4).
DIAGNOSTICS
From what I've observed thus far, Tesla's service information
doesn't really have any diagnostic flow charts. However, when
you're chasing down a service alert and running actions, you
may be presented with connector numbers (Figure 5) where
you would then look at service information, wiring diagrams,
and connector locations (Figure 6).
Tesla's wiring diagrams may take a little getting used to. I recommend
taking some time to study the initial pages on any of
their current diagrams to learn more about the legend. A lot of
information is shared there that can help you navigate the wiring
diagrams with more efficiency.
When you're within the Toolbox application running on
your PC or laptop, oftentimes you'll find contextual links
taking you right into the service information. However, there
are features within service information that (as of the writing
of this article) are not available to the aftermarket, such as the
'Interactive Schematic Tool.'
CASE STUDY
I own a 2018 Model 3, and I recently
had a service issue related to the thermal
management system. I was never
alerted to the issue via the publicly
visible notifications. When I entered
'Service Mode,' I was presented with the
following error shown in Figure 7.
I proceeded to look in 'Service
Information' for any testing info and there
was none. The only support provided was
in the description shown on the screen,
" Check coolant valve harness and/or
replace actuator. "
I checked the harness connector, and
all looked fine, so I ordered a new actuator
and replaced it. After replacement, I performed
a cooling system bleed procedure
where the five-way valve went through a
calibration routine resulting in the error
message disappearing. I decided to do a
post-mortem on the five-way valve and
found the failure (Figure 8).
HIGH VOLTAGE SYSTEMS
Hybrids have been around for about two
decades and high voltage (HV) training
has been available for quite some time,
so I will suggest that if you haven't had
p Figure 6 - Tesla SI - Connector location guide
FIRST TO
MARKET
Clamp Probe Set
Cat. No. 21200
Originally designed to allow a lone technician to test for voltage
drop on top battery posts; its handsfree operation is a useful
diagnostic tool when a third hand is needed.
* Works with standard 4mm banana plugs
op on op b
y p
; i s hand
op
h standard 4mm banana plugs
ion s a u
ul
* Probe swivels and adjusts in height to test where you need it
* Works great for testing recessed connections
* Clamp tips for added grip
* Works with standard 4mm banana plugs
* Works great for testing recessed connections
* Clamp tips for added grip
* Available individually as the 21215 (black) and 21216 (red)
* Available individually as the 21215 (black) and 21216 (red)
* Clamp tips for added grip
ailable ndi idually as the 1215 (bl
) and 212 6 (
d)
Circle 81 on card or click " PTEN e-inquiry " on VehicleServicePros.com
www.VehicleServicePros.com MARCH 2023 PROFESSIONAL TOOL & EQUIPMENT NEWS 27
2303PTEN_S&G.indd 1
2/3/23 11:09 A
* Probe swivels and adjusts in height to test where you need it
http://www.toolaid.com http://www.VehicleServicePros.com http://www.VehicleServicePros.com

March 2023

Table of Contents for the Digital Edition of March 2023

EDITOR'S NOTE
NEW PRODUCTS
TOOL BRIEFING
DIAGNOSTIC TECH
TOOL REVIEWS
CATEGORY SPOTLIGHT
INNOVATION AWARDS PROFILE
BIG-TIME BOXES
March 2023 - 1
March 2023 - 2
March 2023 - 3
March 2023 - 4
March 2023 - 5
March 2023 - 6
March 2023 - EDITOR'S NOTE
March 2023 - NEW PRODUCTS
March 2023 - 9
March 2023 - 10
March 2023 - RSC1
March 2023 - RSC2
March 2023 - 11
March 2023 - 12
March 2023 - 13
March 2023 - 14
March 2023 - 15
March 2023 - 16
March 2023 - 17
March 2023 - 18
March 2023 - 19
March 2023 - TOOL BRIEFING
March 2023 - 21
March 2023 - 22
March 2023 - 23
March 2023 - DIAGNOSTIC TECH
March 2023 - 25
March 2023 - 26
March 2023 - 27
March 2023 - 28
March 2023 - 29
March 2023 - TOOL REVIEWS
March 2023 - 31
March 2023 - 32
March 2023 - 33
March 2023 - CATEGORY SPOTLIGHT
March 2023 - 35
March 2023 - 36
March 2023 - 37
March 2023 - 38
March 2023 - 39
March 2023 - 40
March 2023 - INNOVATION AWARDS PROFILE
March 2023 - BIG-TIME BOXES
March 2023 - 43
March 2023 - 44
March 2023 - SUPP1
March 2023 - SUPP2
March 2023 - SUPP3
March 2023 - SUPP4
March 2023 - SUPP5
March 2023 - SUPP6
March 2023 - SUPP7
March 2023 - SUPP8
March 2023 - SUPP9
March 2023 - SUPP10
March 2023 - SUPP11
March 2023 - SUPP12
March 2023 - SUPP13
March 2023 - SUPP14
March 2023 - SUPP15
March 2023 - SUPP16
March 2023 - SUPP17
March 2023 - SUPP18
March 2023 - SUPP19
March 2023 - SUPP20
March 2023 - SUPP21
March 2023 - SUPP22
March 2023 - SUPP23
March 2023 - SUPP24
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