Can i know the function for the help button

Thanks for your inquiry. The help button will give you accurate repair advice instead of a bunch of technical terms you don't understand, so that you could better and quicker locate the problem of your car and fix it. If further questions, please feel free to contact us by amazon directing message or sending email to aftersale-launchdirect@outlook.com.

Can you give me the directly link for the update？

Sure, here is the link to update: http://eninfo.x431.com/prod_view.aspx?TypeId=68&Id=323&FId=t3:68:3 and here is the link to check update details on page42 of user manual: https://images-na.ssl-images-amazon.com/images/I/B18q-RosS4S.pdf If you have any question, please free to contact to us by aftersale-launchdirect@outlook.com.

Does this code scanner tell us how to fix the problem?

Yes, our Launch CR529 OBD2 code reader can tell how to fix the problem. Our product has a help button with advanced features. The device can tell you what's wrong with the vehicle and the possible reasons for these problems, so that you can maintain the vehicle later. Also, the device will tell you how to fix them. You can solve some minor faults by yourself, or if there is any problem that you can't solve by yourself, you can get it right at the repair shop. If you have any question, please free to contact to us.

Does it erase check engine light?

Yes, the Launch CR529 Code Reader can erases check engine light. If further questions, please feel free to contact us by amazon message or sending email to aftersale-launchdirect@outlook.com.

Manufacturer	LAUNCH
Brand	LAUNCH
Model	OBD2 Scanner Code Reader
Product Dimensions	20.32 x 5.08 x 30.48 cm; 453.59 g
Item model number	OBD2 Scanner Code Reader
Manufacturer Part Number	LC-529-1
Assembly Required	No
Special Features	1.Support ALL OBD2 Function, 10.It supports all OBDII protocols: J1850-41.6, J1850-10.4, ISO9141, KWP2000 (ISO 14230), CAN (ISO 15765)., 11.OBDII monitors supported: Misfire Monitor, Fuel System Monitor, Comprehensive Components Monitor, Catalyst Monitor, Heated Catalyst Monitor, Evaporative System Monitor, Secondary Air System Monitor, Air Conditioning Refrigerant Monitor, Oxygen Sensor Monitor, Oxygen Sensor Heater Monitor, Exhaust Gas Recirculation System Monitor, 2.HELP Button - Give you accurate repair advice instead of a bunch of technical terms you don't understand, 3.DTC - Display fault code definition automatically, 4.Data Print & Review&Record + Lifetime Update, 5.Features the unique One-Click I/M Readiness Key for quick State Emissions readiness check and drive cycle verification, 6.Read and erase generic codes (P0, P2, P3 and U0), manufacturer specific codes(P1, P3 and U1) and pending codes, 7.Easily determine the cause of the Check Engine Light(MIL), and turn off Check Engine Light (MIL) by erasing the trouble codes and Monitors reset, 8.Read live O2 sensor test data, PCM live data stream with graphic data display, Enhanced OBDII Mode 6, 9.7+ Language - English, Spanish, French, Deutsch, Russian, Português, japanese
Manufacturer	LAUNCH
Item Weight	454 g

Tech USA LAUNCH OBD2 Scanner Code Reader CR529 Enhanced Universal Automotive Scan Tool with Full OBDII Function, Turn Off Check Engine Light, Pass Emission Test, Advanced Version of 319

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