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LAUNCH 629 User's Manual
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9. FAQ
Here we list some frequently asked questions and answers relating to this tool.
Question: System halts when reading data stream. What is the reason?
Answer: It may be caused by a slackened connector. Please turn off the tool,
rmly connect the connector, and switch it on again.
Question: Screen of main unit ashes at engine ignition start.
Answer: Caused by electromagnetic disturbing, and this is normal
phenomenon.
Question: There is no response when communicating with on-board
computer.
Answer: Please conrm the proper voltage of power supply and check if the
throttle has been closed, the transmission is in the neutral position, and the
water is in proper temperature.
Question: Why are there so many fault codes?
Answer: Usually, it’s caused by poor connection or fault circuit grounding.
Question: What to do if the tool fails to boot up?
Answer: Please connect the tool to the USB port of a computer to fix the
rmware.
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