Comparison of Launch X431 IV, X431 PRO, X431 V 8inch and X431 PRO3

Launch X431 tools are popular among workshops and technicians for their powerful functions and professional service. In this post, I will share some hot-sale Launch X431 tools information and compare their features.

First comes the table to compare X431 IV, X431 PRO, X431 V 8inch and X431 PRO3:

(Y means yes in the table)

Launch X431 Launch X431 Diagun IV Full System Diagnsotic Tool X-431 Diagun 4 WiFi Bluetooth Scanner with Special Function Update Online Original Launch X431 V Pro Wifi Bluetooth Global Version Full System Diagnostic Tool Two Year Free Update Online (Promotion UK Ship No Tax)Launch X431 V 8inch Tablet Wifi/Bluetooth Diagnostic Tool 2 Years Free Update Online 2018 Edition Launch X431 V+ X431 Pro3 Wifi Bluetooth 10inch Tablet Full System Diagnostic Tool Update Online Two Years for Free
Item X431 IV X431 PRO X431 V 8 inch X431 PRO3
Automotive Diagnostics Y Y Y Y
upgrade CF Update Y Y Y
Remote Diagnosis Y Y Y
Recording and playback Y Y Y
special function Y Y Y
Waveform Display Y Y Y Y
VIN Identification Y Y Y
feedback Y Y Y
Diagnostic Software 29 100 70 100
SIZE 240 × 320 touch screen LCD 7-inch Tablet 8-inch Tablet 10.1-inch Lenovo Tablet
CPU 1GHz quad-core 1GHz quad-core 1.3GHz quad-core
RAM 16M 512M 512M/1GB 1GB
Hard Disk 1GCF card 4GB, 8GB TF card standard 4GB, 8GB TF card standard /16GB,32GB TF card standard 16GB, standard 32GBTF card
Battery 3000mAh 3000mAh/4290mAh 6600mAh
The Internet
Pexels The first 200 million, or 5 million


In the above table, you could check these four tools and compare their functions, price to choose the one fit you.

Below are the spotlights and user manual of each tool.


Launch X431 Diagun IV Full System Diagnostic Tool

Launch X431 Diagun IV is a wifi Bluetooth scanner without IP limit and authorization. It supports 11 special functions and over 20 languages. An easy-to-use scanner.

click the attachment to download the one you need:

Launch X431 Diagun IV User Manual

Launch X431 Diagun IV Test Report

Launch X431 Diagun IV Battery Test Report



Launch X431 Pro Global Version Full System Diagnostic Tool

Launch X431 V Wifi Bluetooth pad with all software installed inside is the updated version of Diagun3 and 4. It is easy and simple to operate with fast running speed.

click the attachment to download the one you need:

Launch X431 Pro User Manual


Launch X431 V 8inch Tablet Wifi/Bluetooth Diagnostic Tool

Launch X431 V 8 inch multi-language is a diagnostic tool without IP limit and activation. It supports many vehicles until the year 2017.

click the attachment to download the one you need:

Launch X431 V 8 inch User Manual

Launch X431 V 8 inch battery test report

Launch X431 V 8inch lithium battery un38-3 test report


Launch X431 V+ Pro3 Wifi Bluetooth 10inch Full System Diagnostic Tool

Launch X431 is a 10-inch Wifi Bluetooth diagnostic tablet with special functions supports more than 129 car models. It is a great replacement for X431 Master, Diagun 3 /4.


If you want to more other Launch X431 Products, please click here:

X431 V + (pro 3) Plus Heavy Duty module reviews

Several days ago, X431 V + (pro 3) Plus Heavy Duty module price drop down. Then what it can do really? Is it worth the money? Read the users’ reviews will be very helpful.

Review 1:

I am a foreman at a Diesel repair shop in Dallas Tx. We work on everything , we do have many programs to read and diagnose diesel and pickups that have issues, more systems with DPF systems.

We work on Mits fuso, fm 260 and others , Ud, Cummins, Detroit,Renult, Mack, duramaxx, Maxxforce, Dt 466,dt 9, 10, Ford,,, I can read codes, do more functions, injector test, with this I can SEE DPF TEMPS, SOOT, EGR. NOW I CAN SEE MITS FUSO, UD, FORD medium truck, now I can see the problem is and fix it and show the customer what’s going on with their engine. Print and let them see the report.

We were surprised at work with this scanner and I AM VERY PLEASED .

Now the other guys want to use mine , which IS MINE ! If you want a really good scanner which you can update, BUY this one!

Review 2:

Bought this Launch X431 V Plus + Heavy Duty Module. The small vehicle side has been very good. I mostly used it on chevys and fords so far to diagnose several abs issues and also some engine codes. also plugged into several Hondas ,Nissans, Toyotas, and a VW or two. On every single vehicle it had a lot of capabilities, datalogging, separate module actuation tests as well as code reading capabilities on multiple different modules in each car. It even had reflashing and recalibrating abilities on most of the vehicles.

I dont really have any experience with snapon but I do have some with autoenginuity and I would say this tool is better than that.


I was actually able to command a regen on an 08 powerstroke that an autoenginuity program for whatever reason could not. I also bought the HD module with this scanner. I was not as impressed with that and I was not able to try it out as much but it does have some potential.

The Cummins program is really good. It should have dpf regen capabilities. I was also able to set ecm to activate the jake brake with the cruise on on a friends semi,so it does have some ecm reset abilities . The Allison program looked really good.  Detroit was satisfactory as well. I believe it has dpf regen capabilities. CAT I was able to read codes on the one bus I plugged into which was actually better than Launch had promised but that was all I was able to do with it. Launch says the program is only for CAT heavy equipment applications not for semi engines. It would not connect with the Maxxforce engine in the International buses I plugged into and also not with the brake systems either wabco or bendix. Leoglobal informed me Launch does not have programs available for those applications. It did identify the systems at least.So the International program is apparently only good for older applications and some instrumentation. I am anxious to see how it will work on mercedes, volvo, mack . and some other overseas engines since the software does seem to work better on nonUS vehicles.

The tablet, X431 program, and Android operating platform are very easy to use and I like the ability to simply use it as a tablet if I want to.

Overall I am very happy with what I got for the price. I would not hesitate to recommend this tool to any shop working on small vehicles. I would probably not buy the tablet and HD module just to work on heavy duty trucks but to use it as a scanner for both light and heavy duty applications as I am hoping to I think it is well worth it.

I also highly recommend . They gave me prompt and helpful responses with the problems I had with downloading the software.

I attach a picture of Launch X431 V+ plus heavy duty full package (from the seller), you can have a clear view on what it contains, their site has package list.

Learn More Launch X431 Tools:

Ford Focus TCM adaptive learning with Launch X431 PRO3

This is the how-to’s of ‬TCM adaptive learning – clutch learning, applicable for all Ford models.

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Select FORD


Launch X431 Pro3 comes with Ford series software V46.24


launch-x143-Ford-TCM-adaptive-learning-2 launch-x143-Ford-TCM-adaptive-learning-3

Automatically Search


Ford Focus vehicle specification


System selection


TCM (transmission control module)


TCM system information


Special functions


TCM adaptive learning


Warning: the function will change the status of your vehicle


TCM adaptive learning:

This function allows the ECM to learn new parameters after component replacement, which must be performed as recommended in the service manual procedures.

This function will reset the TCM parameters and execute a series of rountines to allow th ECM to learn clutch, shift drum and TRS parameters.

If these functions are not performed as recommended, it will effect transmission operation and performance.

In some cases, the service manual may recommend.

Performing these functions to diagnose transmission components.

If there is a mechanical failure or electrical concern with the related system, the function may fail.


Ignition on




Perform the function as recommended in the service manual procedures


Make sure that the transmission gear selector is in the PARK position

Depress the brake pedal and hold


Start to set the clutch parameter one by one

launch-x143-Ford-TCM-adaptive-learning-19 launch-x143-Ford-TCM-adaptive-learning-17 launch-x143-Ford-TCM-adaptive-learning-18

Start engine or crank for 5 seconds if engine does not start

Note: do not depress the throttle pedal


Make sure that the transmission gear selector is in the PARK position

Depress the brake pedal and hold

Press the accelerator pedal to the floor. So the engine reaches maximum speed during WOT (wide open throttle)


Clutch adaptive learning:

Return to idle.

Initiating the clutch touch point adaptive learn for clutches A and B.

Note: this function will attempt to learn the engagement travel of both clutches by engaging direct drive/overdrive gear ratios and progressively engaging both clutch elements. Engaging load is monitored while the touch point is in progress. It is critical that the brake pedal be held consistently and the engine load remain stable released of the brake pedal or varying engine load will result in adaptive learn failure.


It is recommended that the engine at operating temperature. The transmission must be in the PARK position and all vehicle electrical accessories must be turned off.

Note: it is critical that the AC conpressor is not active during the routine. In rare cases, mytouch equipped vehicles may automatically turn the HVAC system back to on. Stat following an ignition cycle. Make sure the HVAC is turned off before proceeding with touch point learn process. Depress the brake pedal and hold.


The RPM is being to set the calibrated value


Counting down 30 seconds to wait the engine to get stable idle


Routine has been successful by the TCM

The successful completion of the clutch touch point adaptive learn eliminates. The need foe the vehicle adaptive drive road test


Ignition off


Wait and done!

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In detail…