Launch X-431 V+ User manual

Version: V1.00.001
Revised date: 03-18-2019
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.

LAUNCH X-431 V+ User Manual — Safety Precautions
i
Copyright Information
Copyright © 2019 by LAUNCH TECH. CO., LTD. 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, recording or
otherwise, without the prior written permission of LAUNCH. The information
contained herein is designed only for the use of this unit. LAUNCH is not
responsible for any use of this information as applied to other units.
Neither LAUNCH nor its affiliates shall be liable to the purchaser of this unit or
third parties for damages, losses, costs, or expenses incurred by purchaser or
third parties as a result of: Accident, misuse, or abuse of this unit, or
unauthorized modifications, repairs, or alterations to this unit, or failure to strictly
comply with LAUNCH operating and maintenance instructions. LAUNCH shall
not be liable for any damages or problems arising from the use of any options or
any consumable products other than those designated as Original LAUNCH
Products or LAUNCH Approved Products by LAUNCH.
Trademark Information
LAUNCH is a registered trademark of LAUNCH TECH CO., LTD. (LAUNCH) in
China and other countries. All other LAUNCH trademarks, service marks,
domain names, logos, and company names referred to in this manual are either
trademarks, registered trademarks, service marks, domain names, logos,
company names of or are otherwise the property of LAUNCH or its affiliates. In
countries where any of the LAUNCH trademarks, service marks, domain names,
logos and company names are not registered, LAUNCH claims other rights
associated with unregistered trademarks, service marks, domain names, logos,
and company names. Other products or company names referred to in this
manual may be trademarks of their respective owners. You may not use any
trademark, service mark, domain name, logo, or company name of LAUNCH or
any third party without permission from the owner of the applicable trademark,
service mark, domain name, logo, or company name. You may contact LAUNCH
by visiting the website at www.cnlaunch.com, or writing to LAUNCH TECH. CO.,
LTD., Launch Industrial Park, North of Wuhe Avenue, Banxuegang, Bantian,
Longgang, Shenzhen, Guangdong, P.R.China, to request written permission to
use Materials on this manual for purposes or for all other questions relating to
this manual.

LAUNCH X-431 V+ User Manual — Safety Precautions
ii
Important Safety Precautions
Important: To avoid personal injury, property damage, or accidental damage to
the product, read all of the information in this section before using the product.
 Never collide, throw, or puncture X-431 V+, and avoid falling, extruding and
bending it.
 Do not insert foreign objects into or place heavy objects on your device.
Sensitive components inside might cause damage.
 Do not use X-431 V+ in exceptionally cold or hot, dusty, damp or dry
environments.
 In places using X-431 V+ may cause interference or generate a potential risk,
please turn it off.
 X-431 V+ 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.
 Never place X-431 V+ into apparatus with strong electromagnetic field.
 Keep X-431 V+ far away from magnetic devices because its radiations can
damage the screen and erase the data stored on X-431 V+.
 DANGER: Do not attempt to replace the internal rechargeable lithium battery.
Contact the dealer for factory replacement.
 CAUTION: Please use the included battery and charger. Risk of explosion if
the battery is replaced with an incorrect type.
 Do not disconnect power abruptly when X-431 V+ is being formatted or in
process of uploading or downloading. Or else it may result in program error.
 Do not delete unknown files or change the name of files or directories that
were not created by you, otherwise your X-431 V+ software might fail to work.
Precautions on Using X-431 V+
Before using this test equipment, please read the following safety information
carefully.
 Always perform automotive testing in a safe environment.
 Wear an ANSI-approved eye shield when testing or repairing vehicles.
 The vehicle shall be tested in a well-ventilated work area, as engines produce

LAUNCH X-431 V+ User Manual — Safety Precautions
iii
various poisonous compounds (hydrocarbon, carbon monoxide, nitrogen
oxides, etc.)
 Do not connect or disconnect any test equipment while the ignition is on or
the engine is running.
 Put blocks in front of the drive wheels and never leave the vehicle unattended
while testing.
 Keep the test equipment dry, clean, free from oil, water or grease. Use a mild
detergent on a clean cloth to clear the outside of the equipment as
necessary.
 Do not drive the vehicle and operate the test equipment at the same time.
Any distraction may cause an accident.
 Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or
hot engine parts.
 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.
 To avoid damaging the test equipment 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.
 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.
Precautions on Operating Vehicle’s ECU
 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 V+ User Manual — Table of Contents
iv
TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................ 1
1.1 P
RODUCT
P
ROFILE
.................................................................................... 1
1.2 F
EATURES
................................................................................................ 3
1.3 K
NOWLEDGE OF
X-431 V+ ........................................................................ 4
1.3.1 X-431 V+ tablet ................................................................................ 4
1.3.2 VCI connector (Only for Passenger Vehicle Version) ....................... 6
1.3.2 VCI module (Only for Commercial Vehicle Version) ......................... 7
1.4 T
ECHNICAL
P
ARAMETERS
.......................................................................... 9
1.4.1 X-431 V+ tablet ................................................................................ 9
1.4.2 VCI connector (Only for Passenger Vehicle Version) ..................... 10
1.4.2 VCI module (Only for Commercial Vehicle Version) ....................... 10
1.5 P
ACKAGE
L
IST
(F
OR
P
ASSENGER
V
EHICLE
V
ERSION
) ............................... 11
1.5 P
ACKAGE
L
IST
(F
OR
C
OMMERCIAL
V
EHICLE
V
ERSION
) .............................. 12
2 PREPARATIONS .......................................................................................... 15
2.1 C
HARGING
X-431 V+ ............................................................................... 15
2.2 U
SING YOUR BATTERY
............................................................................. 15
2.3 P
OWER ON
/
OFF
....................................................................................... 16
2.3.1 Power on ........................................................................................ 16
2.3.2 Power off ........................................................................................ 16
2.4 T
IPS ON FINGER OPERATIONS
.................................................................. 16
2.5 S
CREEN LAYOUT
..................................................................................... 16
2.6 A
DJUST BRIGHTNESS
............................................................................... 17
2.7 S
ET STANDBY TIME
.................................................................................. 17
2.8 C
HANGING LANGUAGE
............................................................................. 17
3 NETWORK SETUP ...................................................................................... 18
3.1 C
ONNECT TO
WLAN ............................................................................... 18
3.2 D
ISCONNECT FROM A
WLAN
NETWORK
.................................................... 18
4 HOW TO DIAGNOSE ................................................................................... 19

LAUNCH X-431 V+ User Manual — Table of Contents
v
4.1 D
IAGNOSIS
F
LOWCHART
.......................................................................... 19
4.2 U
SER
R
EGISTRATION
, C
ONNECTOR
A
CTIVATION
& D
IAGNOSTIC
S
OFTWARE
D
OWNLOAD
.................................................................................................. 19
4.2.1 User registration ............................................................................. 19
4.2.2 Diagnostic software layout ............................................................. 22
4.2.3 Function menu ............................................................................... 23
4.3 C
ONNECTIONS
........................................................................................ 23
4.3.1 Preparation..................................................................................... 23
4.3.2 DLC location .................................................................................. 23
4.3.3 Vehicle connection (For Passenger Vehicle Version) ..................... 24
4.3.3 Vehicle connection (For Commercial Vehicle Version).................... 26
4.4 C
OMMUNICATION
S
ETUP
(F
OR
P
ASSENGER
V
EHICLE
V
ERSION
) ................ 27
4.4 C
OMMUNICATION
S
ETUP
(F
OR
C
OMMERCIAL
V
EHICLE
V
ERSION
) ............... 28
4.4.1 Pairing up via wireless BT .............................................................. 28
4.4.2 WLAN communication .................................................................... 28
4.5 S
TART
D
IAGNOSTICS
............................................................................... 32
4.5.1 Read DTC ...................................................................................... 34
4.5.2 Clear fault memory ......................................................................... 35
4.5.3 Read data stream ........................................................................... 35
4.5.4 Special function .............................................................................. 38
4.5.5 How to view History? ...................................................................... 39
4.5.6 Reset Service ................................................................................. 39
4.6 R
EPAIR
D
ATA
.......................................................................................... 42
4.7 U
PDATE
.................................................................................................. 42
4.8 P
ROFILE
................................................................................................. 43
4.8.1 My connector.................................................................................. 43
4.8.2 Diagnostic connector connection management .............................. 43
4.8.3 Activate connector .......................................................................... 44
4.8.4 Firmware fix ................................................................................... 44
4.8.5 My report ........................................................................................ 44

LAUNCH X-431 V+ User Manual — Table of Contents
vi
4.8.6 Profile ............................................................................................. 44
4.8.7 Change password .......................................................................... 44
4.8.8 Help ............................................................................................... 44
4.8.9 Log out ........................................................................................... 44
4.9 S
ETTINGS
............................................................................................... 45
4.9.1 Units of measurement .................................................................... 45
4.9.2 Orientation ..................................................................................... 45
4.9.3 Print information ............................................................................. 45
4.9.4 Launch wireless printer connection ................................................ 45
4.9.5 Diagnostic feedback ....................................................................... 48
4.9.6 Network test ................................................................................... 48
4.9.7 About .............................................................................................. 48
5 OTHERS ....................................................................................................... 49
5.1 E
MAIL
..................................................................................................... 49
5.1.1 Configure an email account ............................................................ 49
5.1.2 Add an email account ..................................................................... 49
5.2 B
ROWSER
............................................................................................... 49
5.2.1 Open browser................................................................................. 49
5.2.2 Download files ................................................................................ 50
5.3 S
YNCHRONIZATION
.................................................................................. 50
5.3.1 Connect to PC ................................................................................ 50
5.3.2 Run on PC ..................................................................................... 51
5.3.3 Install an application ....................................................................... 51
5.4 C
LEAR
C
ACHE
......................................................................................... 51
6 FAQ .............................................................................................................. 52

LAUNCH X-431 V+ User Manual — General Operations
1
1 Introduction
1.1 Product Profile
X-431 V+ is a new Android-based vehicle trouble diagnostic tool. It is
characterized by featuring powerful functions, and providing precise test result.
Through simple wireless communication between VCI and X-431 V+ 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.
X-431 V+ adopts a higher performance-price ratio tablet computer, which is
equipped with Android 7.1 operating system, 1.4GHz quad core CPU and 10.1”
HD display.
There are two product configurations available for X-431 V+.
1. Passenger Vehicle Version

LAUNCH X-431 V+ User Manual — General Operations
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2. Commercial Vehicle version
X-431 V+ is compatible with the following two Heavy-duty VCI modules. For
different VCI modules, the communication methods vary.
Below shows how the X-431 V+ system works.
A. HD-II module:
B. HD-III module:
Besides the BT communication, the HD-III VCI module comes loaded with a
built-in WLAN module, which can work as a wireless hotspot or a network
adaptor.
Below shows how the X-431 V+ system works.

LAUNCH X-431 V+ User Manual — General Operations
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1.2 Features
1. Diagnose:
 Diagnose the electronic control system of prevailing vehicle models
covering Asian, European, American and Chinese. Diagnosis functions
include: Read DTCs, Clear DTCs, Read Data Stream, Special Functions
etc.
 Specially designed for Android platform with user-friendly interface.
 It is simple for the VCI (Vehicle Communication Interface) to communicate
with X-431 V+.
 Equipped with an exclusive X-431 V+ protective sleeve to prevent it from
being damaged.
 Multiple maintenance and repair functions are supported to boost shop

LAUNCH X-431 V+ User Manual — General Operations
4
revenue: Electronic throttle position reset/learn and gear learning etc.
2. Repair Data: Provides a mass of service information for various vehicle
models, which enables users to retrieve service data of some vehicle online.
3. Update: Lets you update your diagnostic software more efficiently.
4. Browser: Built-in Wi-Fi module makes surfing on the internet freely.
5. Email: Allows you to send and receive emails.
6. Settings: To configure your personalized X-431 V+ through it.
1.3 Knowledge of X-431 V+
There are two main components to the X-431 V+ system:
 X-431 V+ Tablet – the central processor and monitor for the system (See
Chapter “1.3.1”).
 VCI Device – the device for accessing vehicle data (See Chapter “1.3.2”).
1.3.1 X-431 V+ tablet
The tablet acts as the central processing system, which is used to receive and
analyze the live vehicle data from the VCI device and then output the test result.
Fig. 1-1 X-431 V+ tablet

LAUNCH X-431 V+ User Manual — General Operations
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1 POWER Key
In Off mode, press it for 3 seconds to turn
the tablet 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.
2 VOLUME +/- Key To adjust the volume.
3 LCD Screen
4 Microphone
5
Data
transmission/Charging
Port
 To connect to AC outlet for charging.
 To connect to PC for data exchange.
6 Rear Camera
7 Speakers

LAUNCH X-431 V+ User Manual — General Operations
6
1.3.2 VCI connector (Only for Passenger Vehicle Version)
The VCI connector 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 X-431 V+
tablet via wireless BT communication.
Fig. 1-2 VCI connector
1 OBD-16 diagnostic
connector To connect on vehicle’s OBD II DLC.
2 Power LED It lights up while the connector is plugged into
the vehicle’s DLC.
3 BT LED It indicates wireless BT mode if the connector is
energized and illuminates blue (default mode).
4 ECU LED It flashes when the connector is communicating
with the vehicle.

LAUNCH X-431 V+ User Manual — General Operations
7
5 Data I/O port This port is temporarily disabled and reserved for
subsequent function extension.
1.3.2 VCI module (Only for Commercial Vehicle Version)
A. HD-II Module
As the 2
nd
generation of heavy-duty module, it mainly functions as a VCI device
for accessing vehicle data.
Fig. 1-2 HD-II VCI module
1
LED indicators: It is defined as follows(from left to right):
 Power Indicator: It lights up when it is powered on.
 Communication LED of Tablet: It illuminates when the module is
communicating with the tablet.
 Communication LED of Vehicle: It lights up once the module is
connected to a vehicle’s DLC.

LAUNCH X-431 V+ User Manual — General Operations
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 Communication LED of PC
 Data I/O LED
2 Data I/O port
3 Communication Port of PC
4 Diagnostic Socket: To connect the included diagnostic cable.
5 DC-IN power jack: To connect the power adaptor.
B. HD-III Module
As the 3
rd
generation of heavy-duty module, it works as a vehicle communication
interface device, which is used to read the vehicle data and then send it to the
X-431 V+ via wireless BT/WLAN communication. The LED indicators enable you
to easily identify the working status of the module.
Fig. 1-4 HD-III VCI module

LAUNCH X-431 V+ User Manual — General Operations
9
1 DC-IN power jack: For connecting the power adaptor.
2 Diagnostic socket: For connecting the diagnostic cable.
3
LED indicators: It is defined as follows:
 Vehicle: While communicating with the vehicle, the indicator lights
up and flashes. Otherwise, it will not illuminate.
 Power: It illuminates solid red when the module is powered on.
 BT: Blue indicates the module is working in wireless BT mode.
 I/O: It lights up when the module is connected to the diagnostic
tool via data cable (Currently disabled and only reserved for
subsequent function extension).
 Wireless: It lights up when the module works as a wireless hotspot
or network adaptor.
4 Data I/O port: Currently disabled and only reserved for subsequent
function extension.
1.4 Technical Parameters
1.4.1 X-431 V+ tablet
Operating system Android 7.1
Processor Quad-core 1.4GHz processor
Battery 7000mAh rechargeable polymer lithium battery
Memory 2GB
Storage 16GB
Screen 10.1 inch capacitive touch screen with a resolution of
1280 x 800 pixels
Camera Front-facing 2.0MP camera + rear-facing 5.0MP
camera

LAUNCH X-431 V+ User Manual — General Operations
10
Connectivity
 WLAN (802.11b/g/n)
 BT 4.0
Working temperature 0 ~ ℃45℃
Storage temperature -20 ~ ℃70℃
1.4.2 VCI connector (Only for Passenger Vehicle Version)
Working voltage DC 9 ~18V
Average working current About 128mA
Standby current About 50mA
Working temperature -20 to 55℃
Storage temperature -30 to 70℃
Storage humidity <80%
Working humidity <60%
1.4.2 VCI module (Only for Commercial Vehicle Version)
A. HD-II VCI module
Working voltage DC 9 ~36V
Working temperature -20 to 70℃
Storage temperature -30 to 80℃
Storage humidity 10% to 80%
B. HD-III VCI module
Working voltage DC 9 ~36V
Power consumption ≤ 2W

LAUNCH X-431 V+ User Manual — General Operations
11
Communication Via wireless BT/WLAN or data cable
Working temperature -10 to 55℃
WIFI module
HLK-RM08K
 Frequency range: 2412-2472MHz
 Transmit power: 19.29dBm
Wireless BT module
YG-218M-A2
 Frequency range: 2402-2480MHz
 Transmit power: 16.62dBm
1.5 Package List (For Passenger Vehicle Version)
Common accessories for each X-431 V+ are same, but for different destinations,
the accessories (such as diagnostic software, adaptor cables) may vary. Please
consult from the local agency or check the package list supplied with the tool
together.
No. Item Descriptions Qt.
1 X-431 V+ 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 Cigarette lighter
cable
To supply power to the non-16pin
connector from the vehicle’s cigarette
lighter receptacle.
1

LAUNCH X-431 V+ User Manual — General Operations
12
7 Battery clamps
cable
To supply power to the non-16pin
connector from the vehicle’s battery. 1
8 OBD I adaptor box
For connecting the VCI connector and
non-16pin adaptor cable. (Optional)
9 Non-16pin adaptor
cable kit
To connect to the vehicle equipped
with non-OBD II management system.
(Optional)
1.5 Package List (For Commercial Vehicle Version)
Common accessories for each X-431 V+ are same, but for different destinations,
the accessories (such as diagnostic software, adaptor cables) may vary. Please
consult from the local agency or check the package list supplied with the tool
together.
1. For HD-II
1 X-431 V+ tablet Indicates the test result. 1
2 HD-II module Only available for X-431 V+ of
Commercial Vehicle Version. 1
3 Diagnostic cable To connect the VCI module to the
vehicle’s DLC. 1
4 Adaptor cable To connect the diagnostic cable and
the non-16pin adaptor cable. 1
5 Data cable To connect the VCI module to the
tablet to perform diagnosis. (Optional)
6 Power adaptor (For
VCI module)
To provide power to the VCI module
through connection to the AC outlet. 1
7 Password envelope
A piece of paper bearing the product
Serial Number and Activation Code for
product registration.
1

LAUNCH X-431 V+ User Manual — General Operations
13
8 Power adaptor For charging the tablet via AC outlet. 1
9 Cigarette lighter
cable
To supply power to the non-16pin
connector from the vehicle’s cigarette
lighter receptacle.
1
10
Battery clamps
cable
To supply power to the non-16pin
connector from the vehicle’s battery. 1
11
Non-16pin adaptor
cable kit
To connect to the vehicle equipped
with non-OBD II management system.
(Optional)
2. For HD-III
1 X-431 V+ tablet Indicates the test result. 1
2 HD-III module Only available for X-431 V+ of
Commercial Vehicle Version. 1
3 Diagnostic cable To connect the VCI module to the
vehicle’s DLC. 1
4 Data cable To connect the VCI module to the
tablet to perform diagnosis. (Optional)
5 Power adaptor (For
VCI module)
To provide power to the VCI module
through connection to the AC outlet. 1
6 Password envelope
A piece of paper bearing the product
Serial Number and Activation Code for
product registration.
1
7 Power adaptor For charging the tablet via AC outlet. 1
8 Cigarette lighter
cable
To supply power to the non-16pin
connector from the vehicle’s cigarette
lighter receptacle.
1