Introduction to the second edition
The book has grown! But then it was always going
to, because the complexity of automotive systems
has grown and the
associated diagnostic skills
must follow.
The main change for this edition is that I have
included two completely new chapters. The first
is all about on-board diagnostics (OBD) and the
second covers oscilloscope
diagnostics in some
detail. Both of these subjects are very relevant to
all aspects of the automotive repair trade, light or
heavy vehicle.
I have tried wherever
possible to make the con-
tent relevant to all types of vehicle whether used
in the UK, USA or anywhere else in the world.
After all, most vehicles have an engine that makes
the wheels go round – even if the steering wheel
changes sides…
There has been a significant rationalisation of
motor vehicle qualifications in the UK since the
first edition. The
result is that this book has
become even more appropriate because of the
higher technical content. The order of the material
has been changed a bit so that it lines up more
with current qualifications. For example,
engine
management and all engine electrics (batteries,
etc.) are now part of the Engines chapter.
The book is ideal for all MV qualifications, in
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