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:

Launch X431 Diagun IV Review: Satisfied!

Here, I’m gonna to show you how to use a Launch X431 Diagun IV to test a car.

(sorry for the bad resolution of my photos; but the Launch has a good resolution – 1280 x 720 )


Connect it to your car with a 16-pin cable or via Bluetooth


I’m using Honda VCR


Enter X431 Diagun IV app

Then tap Diagnosis


Choose Honda


Then check connection to your car with a 16-pin cable or via Bluetooth

Gonna to the diagnostic test

The interface after a successful connection

Launch-X431-Diagun-IV-manual-7 Launch-X431-Diagun-IV-manual-6

Launch X431 Diagun IV is reading VIN code automatically

Launch-X431-Diagun-IV-manual-9 Launch-X431-Diagun-IV-manual-8

Now, i can see fault codes, read data stream…

Launch-X431-Diagun-IV-manual-11 Launch-X431-Diagun-IV-manual-10

It’s easy to use

Launch-X431-Diagun-IV-manual-13 Launch-X431-Diagun-IV-manual-12

Attach Launch X431 Diagun IV User Manual:

Satisfied! And it’s user-friendly.

Launch x431 trucks scan tool

Looking for a Launch scan tool for truck diagnostic & programming… and here is what i found on the web. Hope it’s helpful to you too.

Products Launch x431 V+ HD Launch X-431 PRO3 V2.0
Image   launch-x431-v-8inch-heavy-duty  launch-x431-pro3-heavy-duty
Price €1,065 €1,129
Operating system Android 5.1 Android 5.1
CPU Quad-core 1.3GHz processor Quad-core 1.3GHz processor
Battery 7000mAh rechargeable polymer lithium battery  7000mAh rechargeable polymer lithium battery
Memory 1GB 1GB
Storage capacity 16GB 16GB
LCD 10.1 inch 10.1 inch
LCD resolution 1280 x 800 1280 x 800
Touch screen Capacitive touch screen Capacitive touch screen
Cameras 5.0 mega pixels rear and 2.0 mega pixels front 5.0 mega pixels rear and 2.0 mega pixels front
Wi-Fi Supported, 802.11a/b/g/h Supported, 802.11a/b/g/h
Bluetooth Supported Supported
Working temperature 0℃ ~ 45℃ 0℃ ~ 45℃
Storage temperature -20℃ ~ 70℃ -20℃ ~ 70℃
Update The first year: free update;Then 999USD/year The first year: free update;Then459USD/year

So, in terms of specification, the Launch x431 scanners above are the same. The biggest the difference is the price and update cost.

Actually, both share the same features also, including functions and vehicle list.

Function: same!

Full-system diagnostics: Read DTCs, Clear DTCs, Read Data Stream, Read freeze frame

Actuation Test: confirmed!

Special Functions: confirmed!

ECU Programming: confirmed!

Truck list: same!

Both Launch x431 HD cover Asian, European, American and Chinese heavy duty trucks.





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:

How to use Launch Golo EZcheck to diagnose car?

Launch Golo EZcheck is a small but smart OBD2 code scanner which run with your IOS / Android Smartphone via Bluetooth and access to engine control units to achieve OBDII diagnostic functions incl. reading DataStream etc.

Here we go to details.


Install on Android / IOS and turn phone as a diagnostic tool.

Download Golo EZcheck free APP:


Workable car makes:

MOST 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN Chinese and worldwide vehicles.

12V vehicle battery

16PIN OBDII protocol

Target users:



Way to communicate with the car:

by 16pin OBDII DLC

Testable ECU models:

Access to engine control units


Easily determines the cause of the “Check Engine Light (MIL)”.

Reads hard (memory)/pending (intermittent) and historic codes and show definitions.

Turns off Check Engine Light (MIL), clears codes and resets monitors.

Tests I/M monitor readines

Retrieves vehicle information (VIN).

Read data stream

How to use Golo EZcheck on Android / IOS to diagnose car?

  1. How does Golo EZcheckwork with the Phone and car? Generally speaking, Golo EZcheckcommunicates with your phone via Bluetooth and diagnose car.


1) you are required to install EZcheck OBDII Scan Tool App into your phone:

For example on Iphone:

  1. The Golo EZcheckfeatures worth to mention:

1).  This is professional car repair report

2) Show code definition directly so that save you time on searching online.

Golo EZcheck VS easydiag /idiag:

  1. Function: the different

Golo EZcheck is only one OBD diagnostic scanner.

easydiag /idiag can perform not only OBD diagnosis but also special functions.

  1. Golo EZcheckdoesn’t need to buy additional car brand software on the official site, while easydiag/idiag needs.

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.

Upload images…

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!

launch-x143-Ford-TCM-adaptive-learning-30 launch-x143-Ford-TCM-adaptive-learning-29


In detail…


Launch CRP Touch Pro Car List and Special Function List

Launch CRP Touch Pro support full system diagnosis and Oil /EPB /SAS/DPF /BMS Reset functions, what’s more, it is good choice for AU Ford and Holden. This blog mainly introduce Launch CRP Touch Pro full system diagnostic car list and special functions list

1. Full system diagnostic
This functions has its own car list.

2. Oil \ EPB \ SAS\ DPF \ BMS Reset functions
CRP Touch Pro Oil reset list:

EPB reset:

SAS reset:

DPF reset:

BMS reset:

More information, please check on :

Launch M-Diag Lite Compare With Foxwell NT510


Looking for a BMW diagnostic tool (with coding/programming function), which tool better? Foxwell NT510or Launch M-Diag Lite?

Foxwell nt510:

features: hand-held scan tool with a screen, no need a laptop

languages: English, French, Spanish,Dutch, German, Chinese

cars: Support new and old OBDI and OBDII vehicles:  Chrysler GM  Honda, Acura Hyundai, KIA Toyota, Lexus, Sicon  Land Rover, Jaguar Opel, Vauxhall VW, Audi, Seat, Skoda BMW  FIAT  American Ford  Porsche

basic diagnosis + coding/service features like Electronic Parking Brake, oil service indicator, and transmission adaptations…

Launch m-diag lite:


features: diagnostic adapter; need connect with smart phones or iPAD (via Bluetooth)

languages: English, Spanish, French, Italian, Chinese

cars: Support the generic OBD, CAN bus, and proprietary protocols of over 70 car manufacturers and 2, 500 OBDll car models: Hyundai, Kia, Mitsubishi, SUBARU, Mazda, Nissan, Toyota, Renault, Dodge, DACIA, Ford, Chevrolet, GM, HOLDEN, Peugeot, SAAB, SMART, Volkswage, Fiat, ROVER, Opel, Vauxhall, SKODA, Citroen, SEAT, Honda, Buick, Chrysler, Jeep, Ssangyong, GAZ, VAZ, Great Wall, Chery, Daihatsu, Suzuki, Isuzu, BYD, MAHINDRA, MARUTI, TATA, PROTON, Luxgen, PERODUA, Daewoo, Guangzhou Automobile Trumpchi, Geely

basic diagnosis + special functions: IMMO & key programming,  Odometer adjustment, Oil / Service reset,  ABS bleeding, TPS throttle body adaptation, brake pads, steering angle reset, battery matching, DPF regeneration, Injector coding, Tire Pressure Warning Light Reset, gear learning

The way tell if Launch X431 is original

Hi, friends. How to tell if Launch X431 scan tool is genuine or clone?

Reply: check if genuine is the serial numbers inside case where the battery sits

launch x431 original

On some is, on some no.

The one with damaged chip does not have serial number label inside battery compartment. But maybe it had and sticker was removed…

Stickers are also too easy to fake.
But genuine has serial 1 digit different to the matching smartbox serial

This is a site with genuine Launch scanners:

Good luck

Launch X431 PRO 3 do Mercedes Variant Coding as Xentry does

Can Launch X431 PRO 3 works as well as Xentry/DAS in Variant Coding?

Yes. Look here:

Run Launch X431 PRO 3 application

Select Mercedes

Mercedes-Benz 48.20 program diagnoses Mercedes electronic control systems,

including power, chassis, body, info, seat & door, A/C, etc.

launch-x431-pro-3-Headlamp-variant-Coding (1)

Manually select the model:

212-E series, Sedan, Gasoline Engine, Left-hand steering, Chassis 212.056-E 350

launch-x431-pro-3-Headlamp-variant-Coding (8) launch-x431-pro-3-Headlamp-variant-Coding (2) launch-x431-pro-3-Headlamp-variant-Coding (3) launch-x431-pro-3-Headlamp-variant-Coding (4) launch-x431-pro-3-Headlamp-variant-Coding (5) launch-x431-pro-3-Headlamp-variant-Coding (6) launch-x431-pro-3-Headlamp-variant-Coding (7)

Select Control unit: Body->XALWA_L-Left xenon headlamp (E1n1)

launch-x431-pro-3-Headlamp-variant-Coding (10) launch-x431-pro-3-Headlamp-variant-Coding (9)

Switch ignition on

launch-x431-pro-3-Headlamp-variant-Coding (11)

Select function: Variant coding

launch-x431-pro-3-Headlamp-variant-Coding (12)

Vehicle data record – general

launch-x431-pro-3-Headlamp-variant-Coding (13)

Coding is being read…

launch-x431-pro-3-Headlamp-variant-Coding (14)

Vehicle data record – general

launch-x431-pro-3-Headlamp-variant-Coding (15)

Select BiXenon

launch-x431-pro-3-Headlamp-variant-Coding (16)

Write coding

launch-x431-pro-3-Headlamp-variant-Coding (17)

Confirm the coding is transferred to the control unit

launch-x431-pro-3-Headlamp-variant-Coding (18)

Switch ignition off/on

launch-x431-pro-3-Headlamp-variant-Coding (20) launch-x431-pro-3-Headlamp-variant-Coding (19)

Reset control module…

launch-x431-pro-3-Headlamp-variant-Coding (21)

Headlamp coding sucess

launch-x431-pro-3-Headlamp-variant-Coding (22)

Job’s done.

Launch X431 PRO 3 works perfect.

Launch X431 PRO 3 Mercedes W212 Throttle Adaptation: Done!

Launch X431 PRO 3 user guide: Throttle Adaptation on Mercedes W212 the 2014 year

Here, credits to all working for the test

Check connection

Run Launch X431 PRO 3 application

Select Europe, then Mercedes

launch-x431-pro3-mb-w212-e200 (1)

Launch X431 PRO3 has Mercedes 48.20 software

This program diagnoses Mercedes electronic control systems, including power, chassis, body, info, seat & door,A/C, etc.

launch-x431-pro3-mb-w212-e200 (2)

Select Automatically search

launch-x431-pro3-mb-w212-e200 (3) launch-x431-pro3-mb-w212-e200 (4)

Check VIN

launch-x431-pro3-mb-w212-e200 (6) launch-x431-pro3-mb-w212-e200 (5)

Read VIN code

launch-x431-pro3-mb-w212-e200 (7)

Select System selection

launch-x431-pro3-mb-w212-e200 (8)

ECM- Engine control module (MED40) for combustion engine M274 (N3/10)

launch-x431-pro3-mb-w212-e200 (9)

Switch on ignition

launch-x431-pro3-mb-w212-e200 (10)

Select Special function

launch-x431-pro3-mb-w212-e200 (11)

Tech-in processes

launch-x431-pro3-mb-w212-e200 (12)

Tech-in of throttle value stop

launch-x431-pro3-mb-w212-e200 (13)

Check the engine status, accelerate pedal position, coolant temperature, and throttle

launch-x431-pro3-mb-w212-e200 (14)

Intake temperature reach the specified values

launch-x431-pro3-mb-w212-e200 (15)

Select F3, start tech-in process

Wait for 60 minutes, then the learning process is complete

launch-x431-pro3-mb-w212-e200 (16)

The tech-in process was completed successfully

launch-x431-pro3-mb-w212-e200 (17)

Job’s done!

Ps. Launch X431 Pro also is tested on W212.. no issues