October 2022 - 32
TOOL BRIEFING
THE SECOND CHALLENGER
Next was a 2009 Chevrolet Traverse that
came to us as a " no-start. " When we first
scanned the vehicle, we were missing the
ECM, TCM, and ABS modules. By looking
at the initial network topology (using
Mitchell 1 service information), the ECM
was at the end of the line followed by the
TCM, and then the ABS module, just
before it entered the passenger compartment
(Figure 6).
I scanned the vehicle with manufacturer-specific
software to find out these modules
were missing from the bus. My next
step was to check the resistance of the network
for the terminating resistors. I used
my Fluke 233 digital volt ohm meter, with
a magnetic detachable screen (Figure 7).
When I tested the network at the OBD
port, it only measured 120 ohms. A properly
functioning network should measure
60 ohms. This led me to believe I was missing
one end of the network.
I then scanned the vehicle with global
OBD-II and received information from the
ECM. The information reported under
global OBD-II, but in reality, it was coming
from the fuel pump control module.
My next step was the ABS module since
that was the first one in line not reporting.
At the ABS module, I found a broken
retaining clip on the electrical connector.
The connector was simply un-mated and
was not making any electrical connection.
p Figure 6- This is from the Mitchell 1 ProDemand to show how they display network
topology. This is one of 3 sheets.
TOPDON
Phoenix Max Diagnostic
Scan Tool
Circle 65 on card or click " PTEN
e-inquiry " on VehicleServicePros.com
Curien
N2 Neuron Dual Channel
S & G Tool Aid
Circuit Tester with Digital Display,
No. 28350
Circle 64 on card or click " PTEN e-inquiry " on
VehicleServicePros.com
Bluetooth Graphing Multimeter
Circle 66 on card or click " PTEN e-inquiry "
on VehicleServicePros.com
Launch Tech
O2-1 Scopebox
Circle 67 on card or click " PTEN
e-inquiry " on VehicleServicePros.com
32 PTEN OCTOBER 2022 www.VehicleServicePros.com
http://www.VehicleServicePros.com
http://www.VehicleServicePros.com
http://www.VehicleServicePros.com
http://www.VehicleServicePros.com
http://www.VehicleServicePros.com
October 2022
Table of Contents for the Digital Edition of October 2022
EDITOR'S NOTE
NEW PRODUCTS
DIAGNOSTIC TECH
TOOL BRIEFING
TOOL REVIEWS
PEOPLE’S CHOICE WINNERS
BEST YOUNG TECH
SOCIAL INFLUENCER
INNOVATION AWARDS PROFILE
CATEGORY SPOTLIGHT
BIG-TIME BOXES
October 2022 - 1
October 2022 - 2
October 2022 - 3
October 2022 - 4
October 2022 - 5
October 2022 - 6
October 2022 - 7
October 2022 - EDITOR'S NOTE
October 2022 - 9
October 2022 - NEW PRODUCTS
October 2022 - RSC1
October 2022 - RSC2
October 2022 - 11
October 2022 - 12
October 2022 - 13
October 2022 - 14
October 2022 - 15
October 2022 - 16
October 2022 - 17
October 2022 - 18
October 2022 - 19
October 2022 - 20
October 2022 - DIAGNOSTIC TECH
October 2022 - 22
October 2022 - 23
October 2022 - 24
October 2022 - 25
October 2022 - 26
October 2022 - 27
October 2022 - TOOL BRIEFING
October 2022 - 29
October 2022 - 30
October 2022 - 31
October 2022 - 32
October 2022 - 33
October 2022 - 34
October 2022 - 35
October 2022 - TOOL REVIEWS
October 2022 - 37
October 2022 - 38
October 2022 - 39
October 2022 - PEOPLE’S CHOICE WINNERS
October 2022 - 41
October 2022 - 42
October 2022 - 43
October 2022 - 44
October 2022 - 45
October 2022 - 46
October 2022 - 47
October 2022 - 48
October 2022 - 49
October 2022 - 50
October 2022 - 51
October 2022 - 52
October 2022 - 53
October 2022 - BEST YOUNG TECH
October 2022 - 55
October 2022 - 56
October 2022 - 57
October 2022 - SOCIAL INFLUENCER
October 2022 - INNOVATION AWARDS PROFILE
October 2022 - CATEGORY SPOTLIGHT
October 2022 - 61
October 2022 - 62
October 2022 - 63
October 2022 - 64
October 2022 - 65
October 2022 - BIG-TIME BOXES
October 2022 - 67
October 2022 - 68
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