LAUNCH® X431 Diagun V All Systems ECU Coding Bi-Directional Diagnostic Tool

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Sale price$599.00 Regular price$760.00


High-quality Hardware: LAUNCH X431 Diagun V is the upgrade version of LAUNCH X431 Diagun IV. Use Lenovo tablet with Android 7.0 system, 5.5-inch screen, 1280*720 resolution, rear 500W camera, 2.4GHz WiFi, 4680mAh battery, 32G memory (expandable to 64G), high-speed quad-core processor. Free upgrade within 2 years after activation!LAUNCH X431 Diagun V All System Diagnostic Tool with ECU Coding
✅All Systems Diagnosis+Bi-Directional Test+ECU Coding+11 Reset Functions: LAUNCH X431 Diagun V supports all systems advanced diagnostic functions and 11 special functions for most car models, service lamp reset, throttle matching, steering angle reset, brake pad reset, tire pressure reset, immobilizer matching, ABS bleeding, battery matching, gear learning, injector coding, DPF regeneration. (2 paid reset services can be added: Gearbox Learn, Air Level Calibration)

LAUNCH X431 DIAGUN V Bi-Directional Scan Tool

✅Vehicle Coverage of Repair Shops and DIYers+24 Languages: The scanning tool can diagnose the electronic control systems of major vehicle models covering Asia, Europe, the United States, up to 135+ car brands, and up to 10,000 car models. Support English, French, Spanish, German, Russian, Korean, Japanese, Portuguese, Italian, Polish, Dutch, Hungarian, Finnish, Czech, Turkish, Greek, Arabic, Danish, Romanian Languages, Serbian, Swedish, Chinese, Thai, Persian.
LAUNCH X431 DIAGUN V Bi-Directional Scan ToolShare and Print Your Diagnostic Report: Generate a health report with one click, you can share the diagnostic report to your customers or technicians via Wi-Fi, support data stream recording and playback, view historical records, etc. For deep-seated problems, you can also provide diagnostic feedback and hand it over to LAUNCH official staff for handling.
LAUNCH X431 DIAGUN V Bi-Directional Scan Tool
Launch Diagun V manual
Launch Diagun V app
Join Launch scan tool group 

What is the difference between LAUNCH X431 Diagun V, LAUNCH X431 Pro Mini 3.0, LAUNCH X431 V 4.0, LAUNCH X431 PRO3S+, and LAUNCH X431 Pad V?
For more detailed comparisons, please click to learn more!

launch x431 series compare

What updates does launch x431 Diagun V did based on diagun IV ?
1. Add the storage of x431 Diagun V from 16G to 32G, makes the scanner work more faster.
2. Adjusted the screen border, make the scanner looks more bigger.
3. Add more live data stream.
4. The vehicle health report can disply more data.
5. Diagun V solved the battery problem, now the battery can work longer time than diagun IV.
6. Fixed more bugs and Upgrade new makes up to 2020 models, including cars, SUVs, minvans, 12V light-duty trucks.

Vehicle connection:
The method used to connect the VCI connector to a vehicle’s DLC depends on the vehicle’s configuration as follows:
• A vehicle equipped with an OBD II management system supplies both communication and 12V power through a standardized DLC.
• A vehicle not equipped with an OBD II management system supplies communication through a DLC connection, and in some cases supplies 12V power through the cigarette lighter receptacle or a connection to the vehicle battery.

For the OBDII vehicle, proceed as follows:
1. Locate the vehicle’s DLC socket.
2. Plug the VCI connector into the vehicle’s DLC socket (It is suggested to use the OBD II extension cable to connect the VCI connector and DLC socket).
3. Choose one of the two ways to obtain power from:
A. Power adaptor: Connect one end of the included power adaptor to the DC IN port of the X-431 Diagun IV handset and the other end to the AC outlet.
B. Internal battery pack.

For non-OBDII vehicles, proceed as follows:
1. Locate the vehicle’s DLC socket.
2. Select the corresponding non-16pin connector.
3. Plug the non-16pin end of the connector into the DLC socket, then connect the other end to the OBD I adaptor, and then tighten the captive screws.
4. Connect the other end of the adaptor to the included VCI connector.
5. To supply power to OBD I adaptor from:
A. Cigarette Lighter cable(optional): Connect one end of the cigarette lighter cable to the vehicle’s cigarette lighter receptacle and the other end to the power jack of the OBDI adaptor.
B. Battery Clamps Cable(optional): Connect one end of the battery clamps.


Operating system: Android 7.0
Processor: Quad-core 1.3 GHz
Memory: 2GB
Storage space: 32GB (expandable up to 64GB)
LCD screen: 5.5 inches IPS screen with a resolution of 1280 x 720 pixels
Camera: 5MP camera
Battery: 4680mh rechargeable polymer lithium battery
Wi-Fi: 2.4GHz
Bluetooth: Bluetooth 4.1
Working temperature: 0℃~45℃
Storage temperature: -10℃~50℃

VCI Connector:
Working voltage: 9~18V
Working temperature: -10℃~55℃
Storage temperature: -20℃~70℃
Relative humidity: 20%~90%

Package List:
1 * X-431 Diagun V 
1 * Charge Connector
1 * USB Cable
1 * Plastic Box

10 * Cables 
11 * Connectors

Payment & Security


  • Is there a screen protector available for the X431 Diagun V?

    Hello, this machine does not come with a screen protector!

  • Hello i would this tool but does it have odometer correction

    Hello, this product supports, you need to purchase this function in the mall of this product before you can use it!

  • Does this work on 2010 suzuki kizashi?

    Hello, this product can diagnose this model!

  • Can I use this tool to write a vin on used pcm?,im working on 2007 Ford Fusion 3.0 litre

    Yes, you can use it.

  • Can this unit rewrite vin numbers? Currently installing a used motor and ecu in a 2004 Ford Ranger. I need to change the vin in the ecu to match vin plate.

    Sorry to reply late.Yes,it support.

  • im looking to buy a vci connector for my x431 diagun v is that something you can get

    Hi, please email us with the Launch serial number

  • if you skip an update doyou have to pay for skipped update to get a current update

    Yes sir, if you want to renew for Diagun, please send the serial number to us via email.
    Thanks for asking

  • Will this tool do a injector cut off test and cylinder performance test a 2015 Ram 2500 6.7 Cummins?

    Yes, of course!

  • Will this do a crank sensor relearn? Will it do the cam sensor relearns?

    Hello it can do ECU coding for all system that includes crank sensor relearn and more...

  • Where is located this company on USA or somewhere else? And how log Take for the orders to be processed After full payment. Thank you

    Hi dear,Kingbolen is Top Launch dealer from China but the scan tool works well on USA car brands.

    Normal,you will get the package within one week afer ordered it.But it will be extended from one week to half a month because of covid-19.

    Thanks for you question.

  • Just a question dos it do diesel injectors buzz test?

    Yes,Launch X431 Diagun IV is a bidirectional scan tool.
    So it have the ability to actuate relays, injectors and coils, perform system tests, etc.

    Launch scan tool bidirectional test video

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