LAUNCH
X-431Diagun User's Manual
ii
contact LAUNCH by visiting the website at www.cnlaunch.com, or writing to
LAUNCH TECH. CO., LTD.
,
Launch Industrial Park, North of Wuhe Avenue,
Banxuegang, Bantian, Longgang, Shenzhen, Guangdong
,
P.R.China, to
request written permission to use Materials on this manual for purposes or
for all other questions relating to this manual.
General Notice
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Other product names used herein are for identification purposes only
and may be trademarks of their respective owners. LAUNCH
disclaims any and all rights in those marks.
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There is a possibility that this unit is inapplicable to some of the
vehicle models or systems listed in the diagnostic section due to
different countries, areas, and/or years. Do not hesitate to contact
LAUNCH if you come across such questions. We are to help you
solve the problem as soon as possible
Precautions on Operating Vehicle’s ECU
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Do not disconnect the vehicle inner consumer when the ignition switch
is on. High voltage transients may encounters at the moment of
disconnecting, and thus may damage sensors and ECU.
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Protect the computer from magnetic object (such as wireless speaker)
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Do cut off the power supply of ECU system before welding on the
vehicle.
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Pay more attention to ECU and sensors when operation is next to
them.
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Ground yourself when you disassemble PROM, otherwise ECU and
sensors will be damaged by static.
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Do not use the pointer ohm meter instead of DMM for testing ECU and
sensor without special requirement.
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Do not test electric devices in relation with ECU with a test lamp unless
otherwise expressly provided.
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Do wear a metal ground strip that one end around your wrist and the
other to the vehicle body when you get in and out the vehicle.