Launch X-431 PROS User manual

Version: V1.01.000
Revised date: 08-18-2021

LAUNCH X-431 PROS V1.0 User Manual
i
Copyright Information
Copyright © 2021 by LAUNCH TECH CO., LTD. (also called LAUNCH for short).
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means, electronic,
mechanical, photocopying and recording or otherwise, without the prior written
permission.
Statement: LAUNCH owns the complete intellectual property rights for the
software used by this product. For any reverse engineering or cracking actions
against the software, LAUNCH will block the use of this product and reserve the
right to pursue their legal liabilities.
Disclaimer of Warranties and Limitation of Liabilities
All information, illustrations, and specifications in this manual are based on the
latest information available at the time of publication.
The right is reserved to make changes at any time without notice. We shall not
be liable for any direct, special, incidental, indirect damages or any economic
consequential damages (including the loss of profits) due to the use of the
document.

LAUNCH X-431 PROS V1.0 User Manual
ii
Important Safety Precautions
To avoid personal injury, property damage, or accidental damage to the product,
read all of the information in this section before using the tool.
DANGER
• When an engine is operating, keep the service area well-ventilated or attach
a building exhaust removal system to the engine exhaust system. Engines
produce various poisonous compounds (hydrocarbon, carbon monoxide,
nitrogen oxides, etc.) that cause slower reaction time and result in death or
serious personal injury.
• Please use the included battery and power adaptor. Risk of explosion if the
battery is replaced with an incorrect type.
• DO NOT attempt to operate the tool while driving the vehicle. Have second
personal operate the tool. Any distraction may cause an accident.
WARNING
 Always perform automotive testing in a safe environment.
 Do not connect or disconnect any test equipment while the ignition is on or
the engine is running.
 Before starting the engine, put the gear lever in the Neutral position (for
manual transmission) or in the Park (for automatic transmission) position to
avoid injury.
 NEVER smoke or allow a spark or flame in vicinity of battery or engine. Do
not operate the tool in explosive atmospheres, such as in the presence of
flammable liquids, gases, or heavy dust.
 Keep a fire extinguisher suitable for gasoline/chemical/electrical fires nearby.
 Wear an ANSI-approved eye shield when testing or repairing vehicles.
 Put blocks in front of the drive wheels and never leave the vehicle unattended
while testing.
 Use extreme caution when working around the ignition coil, distributor cap,
ignition wires and spark plugs. These components create hazardous voltage
when the engine is running.
 To avoid damaging the tool or generating false data, please make sure the
vehicle battery is fully charged and the connection to the vehicle DLC (Data
Link Connector) is clear and secure.

LAUNCH X-431 PROS V1.0 User Manual
iii
 Automotive batteries contain sulfuric acid that is harmful to skin. In operation,
direct contact with the automotive batteries should be avoided. Keep the
ignition sources away from the battery at all times.
 Keep the tool dry, clean, free from oil, water or grease. Use a mild detergent
on a clean cloth to clear the outside of the equipment when necessary.
 Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or
hot engine parts.
 Store the tool and accessories in a locked area out of the reach of children.
 Do not use the tool while standing in water.
 Do not expose the tool or power adapter to rain or wet conditions. Water
entering the tool or power adaptor increases the risk of electric shock.
 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.
 Keep the tool far away from magnetic devices because its radiations can
damage the screen and erase the data stored on the tool.
 Do not attempt to replace the internal rechargeable lithium battery. Contact
the dealer for factory replacement.
 Do not disconnect battery or any wiring cables in the vehicle when the ignition
switch is on, as this could avoid damage to the sensors or the ECU.
 Do not place any magnetic objects near the ECU. Disconnect the power
supply to the ECU before performing any welding operations on the vehicle.
 Use extreme caution when performing any operations near the ECU or
sensors. Ground yourself when you disassemble PROM, otherwise ECU and
sensors can be damaged by static electricity.
 When reconnecting the ECU harness connector, be sure it is attached firmly,
otherwise electronic elements, such as ICs inside the ECU, can be damaged.

LAUNCH X-431 PROS V1.0 User Manual
iv
Table of Contents
1 Introduction ......................................................................................... 1
1.1 Product Profile ................................................................................ 1
1.2 Package List .................................................................................. 2
1.3 Components & Controls .................................................................. 3
1.3.1 Display Tablet .................................................................................... 3
1.3.2 VCI Connector (Only applies to 12V cars) ......................................... 5
1.4 Technical Parameters ..................................................................... 5
2 Initial Use ............................................................................................. 7
2.1 Charging ........................................................................................ 7
2.2 Power on/off ................................................................................... 7
2.3 Basic Gestures ............................................................................... 7
2.4 Screen Layout ................................................................................ 8
2.5 Adjust brightness ............................................................................ 8
2.6 Set Standby Time ........................................................................... 8
2.7 Change System Language.............................................................. 9
2.8 Network Setup ................................................................................ 9
3 Getting Started .................................................................................. 10
3.1 Register & Download Diagnostic Software ..................................... 10
3.2 Job menu ..................................................................................... 12
3.3 Diagnostics toolbar ....................................................................... 13
4 Connections ...................................................................................... 15
4.1 Preparation .................................................................................. 15
4.2 Vehicle connection ....................................................................... 15
5 Diagnosis........................................................................................... 18
5.1 Intelligent Diagnosis ..................................................................... 18
5.2 Local Diagnosis ............................................................................ 21
5.2.1 Health Report (Quick Test) .............................................................. 26
5.2.2 System Scan ................................................................................... 28
5.2.3 System Selection ............................................................................ 29

LAUNCH X-431 PROS V1.0 User Manual
v
5.3 Remote Diagnosis ........................................................................ 38
5.3.1 Add Friends ..................................................................................... 39
5.3.2 Start Instant Messaging ................................................................... 40
5.3.3 Launch Remote Diagnosis (Device-To-Device) ............................... 41
5.3.4 Launch Remote Diagnosis (Device-To-PC) ..................................... 45
5.4 Feedback ..................................................................................... 47
5.5 Diagnostic History ........................................................................ 48
6 Service (Reset) Function ................................................................... 49
6.1 Oil Reset Service .......................................................................... 49
6.2 Electronic Parking Brake Reset ..................................................... 50
6.3 Steering Angle Calibration ............................................................ 50
6.4 ABS Bleeding ............................................................................... 50
6.5 Tire Pressure Monitor System Reset ............................................. 50
6.6 Gear Learning .............................................................................. 50
6.7 IMMO Service .............................................................................. 51
6.8 Injector Coding ............................................................................. 51
6.9 Battery Maintenance System Reset............................................... 51
6.10 Diesel Particulate Filter (DPF) Regeneration................................ 51
6.11 Electronic Throttle Position Reset ................................................ 52
6.12 Gearbox Matching ...................................................................... 52
6.13 AFS (Adaptive Front-lighting System) Reset ................................ 52
6.14 Sunroof Initialization ................................................................... 52
6.15 Suspension Calibration ............................................................... 52
6.16 IMMO Programming ................................................................... 53
7 Software Update ................................................................................ 54
7.1 Update Diagnostic Software & APP ............................................... 54
7.2 Update Frequently Used software ................................................. 55
7.3 Renew Subscription ...................................................................... 55
8 Add-on Modules ................................................................................ 58
8.1 ADAS (Calibration) ....................................................................... 58
8.2 TPMS .......................................................................................... 58

LAUNCH X-431 PROS V1.0 User Manual
vi
8.3 Videoscope .................................................................................. 58
8.4 BST360 (Battery Tester) ............................................................... 58
8.5 X-PROG 3 (Immobilizer Programmer) ........................................... 58
9 User Info ............................................................................................ 60
9.1 My Report .................................................................................... 60
9.2 VCI .............................................................................................. 60
9.3 VCI Management ......................................................................... 60
9.4 Activate VCI ................................................................................. 60
9.5 Firmware Fix ................................................................................ 61
9.6 My Order ...................................................................................... 61
9.7 Subscription Renewal Card ........................................................... 61
9.8 Profile .......................................................................................... 61
9.9 Change password ........................................................................ 62
9.10 Settings ...................................................................................... 62
9.10.1 Units of Measurement ................................................................... 62
9.10.2 Shop Information ........................................................................... 62
9.10.3 Printer Set ..................................................................................... 63
9.10.4 Orientation .................................................................................... 66
9.10.5 Clear Cache .................................................................................. 66
9.10.6 About ............................................................................................. 66
9.10.7 Diagnostic Software Auto Update .................................................. 66
9.10.8 Device Account Management ........................................................ 66
9.10.9 Login/Logout ................................................................................. 68
9.11 Diagnostic Software Clear ........................................................... 68
10 FAQ .................................................................................................. 69

LAUNCH X-431 PROS V1.0 User Manual
1
1 Introduction
1.1 Product Profile
X-431 PROS V1.0 adopts a higher performance-price ratio display tablet, which is
equipped with Android operating system and 8” HD capacitive touch screen. It
inherits from LAUNCH’s advanced diagnosing technology and is characterized
by covering a wide range of vehicles, featuring powerful functions, and providing
precise test result.
Through the simple Bluetooth communication between VCI (Vehicle
Communication Interface) device and the display tablet, it achieves full car
model and full system vehicle trouble diagnosis, which include Reading DTCs,
Clearing DTCs, Reading Data Stream, Actuation Test and Special Functions.
It has the following features:
 Intelligent Diagnose: This module allows you to use the VIN information of the
currently identified vehicle to access its data (including vehicle information,
historical diagnostic records) from the cloud server to perform quick test,
eliminating guesswork and step-by-step manual menu selection.
 Local Diagnose: Follow the on-screen prompts to start diagnostic session
step by step.
 Remote Diagnose: This option aims to help repair shops or technicians
launch instant messaging and remote diagnosis, making the repair job getting
fixed faster.
 Service Function: Performs all kinds of common maintenance and reset items
including Oil Reset Service, Electronic Parking Brake Reset, Steering Angle
Calibration, ABS Bleeding, TPMS (Tire Pressure Monitor System) Reset,
Gear Learning, IMMO Service, Injector Coding, Battery Maintenance System,
Diesel Particulate Filter (DPF) Regeneration, Electronic Throttle Position
Reset, Gearbox Matching, AFS (Adaptive Front-lighting System) Reset,
Sunroof Initialization, Suspension Calibration and IMMO Programming.
 One-click Update: Lets you update your diagnostic software online.
 ADAS calibration: Allows you to perform Advanced Driver Assistance System
(ADAS) calibration operations. This function needs to be activated before
normal use and only works with the specific ADAS calibration tool.

LAUNCH X-431 PROS V1.0 User Manual
2
 TPMS: Configures the tool as a professional Tire Pressure Monitoring
System (TPMS) service tool. It needs to work with the TSGUN device (sold
separately) to perform all kinds of various TPMS functions.
 Mall: Enables you to subscribe some extra software or service functions that
are not integrated in the tool online.
 Diagnostic History: This function provides a quick access to the tested
vehicles and users can choose to view the test report or resume from the last
operation, without starting from scratch.
 Feedback: Enables you to submit the vehicle issue to us for analysis and
troubleshooting.
 Vehicle Coverage: Quick dial to view the vehicle models that the tool covers.
 Add-on modules (Optional): BST 360 Battery Tester and Videoscope are
available as add-on modules, extending the functions of the tool.
1.2 Package List
Common accessories are same, but for different destinations, the accessories
(such as diagnostic software, testing connectors) may vary. Please consult from
the local agency or check the package list supplied with this tool together.
No.
Item
Descriptions
Q
t.
1 Display tablet Indicates the test result. 1
2 VCI connector Collects the vehicle data and sends it
to the tablet for analysis. 1
3 OBD II extension
cable
To connect the VCI connector to the
OBD II vehicle’s DLC. 1
4 Password envelope
A piece of paper bearing the product
Serial Number and Activation Code for
product registration.
1
5 Power adaptor For charging the tablet via AC outlet. 1
6 USB/Charging
cable
Connect the power adaptor to charge
the tablet. 1

LAUNCH X-431 PROS V1.0 User Manual
3
7 Cigarette lighter
cable
To supply power to the non-16pin
connector from the vehicle’s cigarette
lighter receptacle.
(Optional)
8 Battery clamps
cable
To supply power to the non-16pin
connector from the vehicle’s battery. (Optional)
9 OBD I adaptor box
For connecting the VCI connector and
non-16pin adaptor cable. (Optional)
10
Non-16pin adaptor
cable kit
To connect to the vehicle equipped
with non-OBD II management system.
(Optional)
1.3 Components & Controls
There are two main components to the diagnostic system:
 Display tablet – the central processor and monitor for the system (See
Chapter 1.3.1).
 VCI connector – the device for accessing vehicle data (See Chapter 1.3.2).
1.3.1 Display Tablet
The tablet acts as the central processing system, which is used to receive and
analyze the live vehicle data from the VCI connector and then output the test
result.

LAUNCH X-431 PROS V1.0 User Manual
4
1
V
OLUME +/
-
K
ey
To adjust the volume.
2 POWER Key
In Off mode, press it for 3 seconds to turn the
handset on.
In On mode:
 Press it to activate the LCD if the LCD is off.
Press it to turn off the LCD if the LCD lights up.
 Press it for 3 seconds to turn it off.
 Press it for 8 seconds to perform forced
shutdown.
3
Microphone
4 Charging/Data I/O
Port
 To connect to AC outlet for charging.
 To connect to PC for data exchange.
5 LCD Screen
6 Front Camera
7
Speakers
8
Rear
C
amera

LAUNCH X-431 PROS V1.0 User Manual
5
9
Adjustable
Kickstand
Flip out it to any angle and work comfortable at
your desk, or hang it on automotive part.
1.3.2 VCI Connector (Only applies to 12V cars)
The VCI works as a vehicle communication interface device, which is used to
connect to the vehicle’s DLC (Data Link Connector) socket directly or via OBD II
extension cable to read the vehicle data and then send it to the tablet via
Bluetooth.
1
OBD
-
16
diagnostic
connector To connect on vehicle’s OBD II DLC socket.
2 Mode indicator
 It illuminates red when the VCI connector is
connected to the vehicle’s DLC.
 Blue indicates the VCI connector is working
in wireless (BT) communication mode.
1.4 Technical Parameters
Display tablet:
Operating system Android

LAUNCH X-431 PROS V1.0 User Manual
6
Memory 3GB
Storage 32GB
Screen 8 inch high-definition capacitive touch screen
with a resolution of 1280 x 800 pixels
Camera Front-facing 2.0MP camera + Rear-facing
5.0MP camera
Working temperature 0℃ ~ 50℃
Storage temperature -20 ~ ℃70℃
VCI connector:
Working voltage 9 ~18V
Working temperature 0℃ ~ 50℃
Relative humidity 20% ~ 90%

LAUNCH X-431 PROS V1.0 User Manual
7
2 Initial Use
2.1 Charging
1. Plug one end of the included charging port of the tool, and the other end to
the power adaptor.
2. Connect the other end to the AC outlet.
If appears on the screen, it indicates it is being charged. If the logo changes
into , it indicates that the battery is fully charged. Unplug the power adaptor
from the tablet.
Caution: Please use the included power adaptor to charge your tool. No
responsibility can be assumed for any damage or loss caused as a result of using power
adaptors other than the one supplied.
Notes:
 If the battery remains unused for a long period of time or the battery is completely
discharged, it is normal that the tool will not power on while being charged. Please
charge it for a period of 5 minutes and then turn it on.
 While the tablet has low battery, a beep will sound. If it is very low, the tablet will be
switched off automatically.
2.2 Power on/off
Press the POWER button to turn the tool on.
Note: If it is the first time you have used this tool or the tool remains idle for a
long period of time, the tool could fail to turn on. Please charge the tool for a minimum
of 5 minutes and attempt to turn on again.
Press the POWER button for 3 seconds, an option menu will pop up on the
screen. Tap Power off to turn the tool off.
2.3 Basic Gestures
Single-tap: To select an item or launch a program.

LAUNCH X-431 PROS V1.0 User Manual
8
Double-tap: To zoom in so that the text on a webpage appears
in a column that fits your device’s screen.
Long press: Tap and hold on the current interface or area until a
contextual menu pops up on the screen, and then release it.
Slide: To jump to different pages.
Drag: Tap the application icon and drop it to other location.
Spread apart
/p
inch together
: To zoom in manually, place two
fingers on the screen and then spread them apart. To zoom out,
place two fingers apart on the screen and then pinch them
together.
2.4 Screen Layout
There are four on-screen buttons available on the bottom of the screen.
BACK Tap it to return to the previous screen.
HOME Tap it to navigate to the Android’s home screen.
Recent Apps Tap it to view the recently launched applications.
Screenshot Tap it to capture the current screen.
2.5 Adjust brightness
Note: Reducing the brightness of the screen is helpful to conserve the battery
power.
1. On the home screen, tap Settings -> Display -> Brightness level.
2. Drag the slider to adjust it.
2.6 Set Standby Time
If no activities are made within the defined standby period, the screen will be
locked automatically and the system enters sleep mode to save power.

LAUNCH X-431 PROS V1.0 User Manual
9
1. On the home screen, tap Settings -> Display -> Advanced -> Sleep.
2. Choose the desired sleep time.
2.7 Change System Language
The tool supports multiple system languages. To change the language of the
tool, please do the following:
1. On the home screen, tap Settings -> System -> Language & input ->
Languages.
2. Tap Add a language, and then choose the desired language from the list.
3. Tap and hold the desired language and drag it to the top of the screen and
then release it, the system will change into the target language.
2.8 Network Setup
The tablet has built-in Wi-Fi that can be used to get online. Once you’re online,
you can register your tool, surf the Internet, get apps, send email, launch the
remote diagnosis, and check for software updates etc.
1. On the home screen, tap Settings -> Network & Internet -> WLAN.
2. Slide the Wi-Fi switch to ON, the tablet starts searching for available wireless
networks.
3. Select a wireless network,
 If the chosen network is open, the tablet will connect automatically.
 If the selected network is encrypted, a network password will need to be
entered.
4. When Connected appears, it indicates the Wi-Fi connection is complete.
Note: When Wi-Fi is not required, this should be disabled to conserve battery
power.

LAUNCH X-431 PROS V1.0 User Manual
10
3 Getting Started
3.1 Register & Download Diagnostic Software
Follow the steps below to proceed registration and update:
Tap the application icon on the home screen to launch it, and then tap Login to
enter the login interface of diagnosis software.
(If you are a new user, follow A to proceed.)
(If you have registered to be a member, go to B to login the system directly.)
(If you have bound a sub-account to this tool, go to C to login the system.)
(In case you forgot password, refer to D to reset a new password.)
A. If you are a new user, tap New Registration to enter the sign-up page.

LAUNCH X-431 PROS V1.0 User Manual
11
Fill in the information in each field (Items with * must be filled). After inputting,
tap Register, the following screen will appear:
Input the 12-digit Product Serial Number and 8-digit Activation Code (can be
obtained from the password envelope), and then tap Activate.
Tap Yes to navigate to the update center to update all available software. Tap
No to ignore it. In this case, follow Chapter 7 to check for updates.
After the registration is successfully complete, the wireless communication
between the tablet and the VCI device is automatically established and user has
no need to configure it again.

LAUNCH X-431 PROS V1.0 User Manual
12
B. If you have registered to be a member, input your name and password, and
then tap Login to enter the main menu screen directly.
Note: The tablet has an auto-save function. Once the username and password are
correctly entered, the system will automatically store it. Next time you login the system,
you will not be asked to input the account manually.
C. If you have created a sub-account or bound an existing account to the tool,
tap Technician login to login. For more details on sub-accounts, refer to
Chapter 9.10.8.
D. If you forgot the password, tap Retrieve password and then follow
on-screen instructions to set a new password.
3.2 Job menu
It mainly includes the following items:
Name
Description
Intelligent
Diagnose
• Obtain vehicle data from the cloud server to perform
quick test via reading VIN, to avoid various defects
resulting from step-by-step menu selection.
• Check the historical repair records online.
Local
Diagno
s
e
To diagnose a vehicle manually.
Service Function Perform commonly used repair & maintenance
services.
Remote Diagnose
This option aims to help repair shops or technicians
launch instant messaging and remote diagnosis,
making the repair job getting fixed faster.
TPMS Configure the tool as a professional Tire Pressure
Monitoring System (TPMS) service tool.
Software Update
To update vehicle diagnostic software and APK.
Diagnostic History
• Access the diagnostic reports from the previously
tested vehicles.
• Resume the previous operation without starting from
scratch.

LAUNCH X-431 PROS V1.0 User Manual
13
Feedback Feedback the recent 20 diagnostic logs to us for issue
analysis.
ADAS Perform ADAS (Advanced Driver Assistance System)
calibration operations.
Mall Subscribe some extra software or service functions that
are not included in the diagnostic tool online.
Vehicle Coverage
Check all the vehicle models that the tool covers.
Info Center Includes product manual, FAQ, product information and
repair data etc.
User Info To manage VCI, reports, change password, configure
system settings and logout etc.
Other Modules Includes some add-on modules (such as Videoscope,
BST360, Immo Programmer) and other system apps.
3.3 Diagnostics toolbar
The diagnostics toolbar contains a number of buttons that allow you to print the
displayed data or make other controls. It is displayed on the upper right corner of
the screen and goes through the whole diagnostic session. The table below
provides a brief description for the operations of the diagnostics toolbar buttons:
Name
Button
Description
Home Returns to Job menu screen.