LAUNCH       X-431 V V4.0 User Manual 
ii 
Important Safety Precautions 
Important: To avoid personal injury, property damage, or accidental damage to 
the product, read all of the information in this section before using the product. 
  Never collide, throw,  or puncture the tool,  and avoid falling,  extruding  and 
bending it. 
  Do  not  insert  foreign  objects  into  or  place  heavy  objects  on  your  device. 
Sensitive components inside might cause damage. 
  Do  not  use  the  tool  in  exceptionally  cold  or  hot,  dusty,  damp  or  dry 
environments. 
  In places using the tool may cause interference or generate a potential risk, 
please turn it off. 
  This tool is a sealed unit. There are no end-user serviceable parts inside. All 
internal  repairs  must  be  done  by  an  authorized  repair  facility  or  qualified 
technician. If there is any inquiry, please contact the dealer. 
  Never place  the tool into apparatus with strong electromagnetic field. 
  Keep  the tool  far  away  from magnetic  devices  because  its  radiations  can 
damage the screen and erase the data stored on the tool. 
  DANGER: Do not attempt to replace the internal rechargeable lithium battery. 
Contact the dealer for factory replacement.   
  CAUTION: Please use the included battery and charger. Risk of explosion if 
the battery is replaced with an incorrect type. 
Precautions on Using This Tool 
Before using this tool, please read the following safety information carefully. 
  Always perform automotive testing in a safe environment. 
  If the VCI (Vehicle Communication Interface) device is not in use for a long 
period of time, it is suggested to unplug the connector from vehicle’s DLC to 
conserve battery power. 
  Wear an ANSI-approved eye shield when testing or repairing vehicles. 
  The vehicle shall be tested in a well-ventilated work area, as engines produce 
various  poisonous  compounds  (hydrocarbon,  carbon  monoxide,  nitrogen 
oxides, etc.) 
  Do not connect or disconnect any test equipment while the ignition is on or 
the engine is running. 
  Put blocks in front of the drive wheels and never leave the vehicle unattended