June_2022 - 24

Vehicle security operation:
Key programming,
immobilizers, and more
Stay on top of future service demands by understanding vehicle
security systems and operations.
By Scott Brown, Technical Editor
V
ehicle security has been around for
decades. Today, automobile manufacturers
have been implementing various strategies
regarding security. Many of the anti-theft
systems involve the prevention of access into the
vehicle and the immobilization of the propulsion
system (Figure 1). Vehicle security is not only to
prevent vehicle theft or unauthorized use, but
it's also there to prevent malicious activity taking
place in the vehicle network systems. This
is especially true on vehicles that have controls
that could effectively inhibit safe operation of
the vehicle.
For these reasons, the auto manufacturers are deeply concerned
about network communication security (Figure 2). If an unwanted
command is issued across the network, it could mean that the messages
flying across the various networks upon the vehicle could
issue inappropriate commands that would take the vehicle into an
unsafe situation. During normal service operations, technicians
are tasked with utilizing various diagnostic platform devices that
communicate on many of these network platforms. In some cases,
there may be initialization, calibration, or reprogramming events
that take place that could possibly compromise the vehicle.
Taking this to the next level, vehicle manufacturers are interested
in what is happening during service and they do this by
creating a log of who accessed the vehicle systems, what was
done, when it was done, and where it was done.
This is no different than what you would see in many of the
information technology systems that support our everyday operations.
If an audit is needed, it would make sense to be able to
go back and look at who, what, when, and where services were
performed on the vehicle. Doing so can cover the liability aspects
of vehicle operations in the case where something went sideways.
As mentioned in a previous article I wrote on vehicle security,
Charlie Miller and Chris Valasek, two white-hat hackers,
embarked on a side project where they broke into a 2015 Jeep
24 PTEN JUNE 2022 www.VehicleServicePros.com
p Figure 1- Many of the anti-theft systems involve the prevention of
access into the vehicle and the immobilization of the propulsion system.

http://www.VehicleServicePros.com

June_2022

Table of Contents for the Digital Edition of June_2022

NEW PRODUCTS
TOOL REVIEWS
CATEGORY SPOTLIGHT
EDITOR'S NOTE
DIAGNOSTIC TECH
TOOL BRIEFING
BIG TIME BOXES
GLOBAL OBD-II SCAN TOOLS
PROFESSIONAL DIAGNOSTIC SCAN TOOLS
PRODUCTS
HEAVY DUTY DIAGNOSTIC SCAN TOOLS
COMPANY DIRECTORY
June_2022 - 1
June_2022 - 2
June_2022 - 3
June_2022 - 4
June_2022 - 5
June_2022 - 6
June_2022 - 7
June_2022 - 8
June_2022 - 9
June_2022 - EDITOR'S NOTE
June_2022 - RSC1
June_2022 - RSC2
June_2022 - NEW PRODUCTS
June_2022 - 12
June_2022 - 13
June_2022 - 14
June_2022 - 15
June_2022 - 16
June_2022 - 17
June_2022 - 18
June_2022 - 19
June_2022 - 20
June_2022 - 21
June_2022 - 22
June_2022 - 23
June_2022 - DIAGNOSTIC TECH
June_2022 - 25
June_2022 - 26
June_2022 - 27
June_2022 - 28
June_2022 - 29
June_2022 - TOOL BRIEFING
June_2022 - 31
June_2022 - 32
June_2022 - 33
June_2022 - 34
June_2022 - 35
June_2022 - 36
June_2022 - 37
June_2022 - TOOL REVIEWS
June_2022 - 39
June_2022 - 40
June_2022 - 41
June_2022 - 42
June_2022 - CATEGORY SPOTLIGHT
June_2022 - 44
June_2022 - 45
June_2022 - 46
June_2022 - 47
June_2022 - 48
June_2022 - BIG TIME BOXES
June_2022 - 50
June_2022 - 51
June_2022 - 52
June_2022 - S1
June_2022 - S2
June_2022 - S3
June_2022 - S4
June_2022 - S5
June_2022 - GLOBAL OBD-II SCAN TOOLS
June_2022 - S7
June_2022 - S8
June_2022 - S9
June_2022 - S10
June_2022 - S11
June_2022 - PROFESSIONAL DIAGNOSTIC SCAN TOOLS
June_2022 - S13
June_2022 - S14
June_2022 - S15
June_2022 - S16
June_2022 - S17
June_2022 - S18
June_2022 - S19
June_2022 - S20
June_2022 - S21
June_2022 - S22
June_2022 - S23
June_2022 - S24
June_2022 - S25
June_2022 - S26
June_2022 - PRODUCTS
June_2022 - S28
June_2022 - S29
June_2022 - HEAVY DUTY DIAGNOSTIC SCAN TOOLS
June_2022 - S31
June_2022 - S32
June_2022 - S33
June_2022 - S34
June_2022 - S35
June_2022 - S36
June_2022 - S37
June_2022 - COMPANY DIRECTORY
June_2022 - S39
June_2022 - S40
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