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«LAUNCH X-431Diagun User's Manual Copyright Information Copyright © 2008 by LAUNCH TECH. CO., LTD. All rights reserved. No part of this publication ...»

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LAUNCH X-431Diagun User's Manual

Copyright Information

Copyright © 2008 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. (also called LAUNCH for short) 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 i LAUNCH X-431Diagun User's Manual 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.

General Notice Other product names used herein are for identification purposes only and may be trademarks of their respective owners. LAUNCH disclaims any and all rights in those marks.

There is a possibility that this unit is inapplicable to some of the vehicle models or systems listed in the diagnostic section due to different countries, areas, and/or years. Do not hesitate to contact LAUNCH if you come across such questions. We are to help you solve the problem as soon as possible Precautions on Operating Vehicle’s ECU Do not disconnect the vehicle inner consumer when the ignition switch is on. High voltage transients may encounters at the moment of disconnecting, and thus may damage sensors and ECU.

Protect the computer from magnetic object (such as wireless speaker) Do cut off the power supply of ECU system before welding on the vehicle.

Pay more attention to ECU and sensors when operation is next to them.

Ground yourself when you disassemble PROM, otherwise ECU and sensors will be damaged by static.

Do not use the pointer ohm meter instead of DMM for testing ECU and sensor without special requirement.

Do not test electric devices in relation with ECU with a test lamp unless otherwise expressly provided.

Do wear a metal ground strip that one end around your wrist and the other to the vehicle body when you get in and out the vehicle.

–  –  –

Do connect ECU harness connector firmly, otherwise electro elements, such as IC inside ECU, will be damaged.

Precautions on Operation The appliance is a sophisticated electronic device, never have it clashed when in use.

Make sure the appliance is properly connected to the DIAGNOSTIC CONNECTOR to avoid communication interruptions.

Do not insert and pull out CF card when the appliance is working.

Put the stylus into the slot at the back of X-431 main unit after operation, and place the cables, connectors and other accessories into box.

Handle with care and avoid crashing.

Safety Precautions Automotive batteries contain sulfuric acid that is harmful to skin. In operation, direct contact with the automotive batteries should be avoided. Pay attention not to splash the sulfuric acid into eyes. Keep ignition sources away from the battery at all times.

Engines produce various poisonous compounds (hydrocarbon, carbon monoxide, azote oxid, etc,) which should be avoided.

Avoid contacting high temperature assembly such as water tank and vent-pipe as the temperature of the running engine is very high.

Before starting engine, put the speed lever in the neutral position or in the P position to avoid injury.

Wear an ANSI-approved eye shield when testing or repairing vehicles.

If you are using the battery as a power source, connect the RED (+) battery clip to the positive of the vehicle battery and the BLACK (-) battery clip to the negative.

iii LAUNCH X-431Diagun User's Manual


1 Introduction

2 X-431Diagun

2.1 X-431Diagun Component Descriptions

2.2 Port and Indicator Descriptions

2.3 X-431Diagun General Components

2.4 X-431Diagun Specifications

2.5 X-431Diagun Start

2.5.1 Power on

2.5.2 Calibrate Touch Screen

2.5.3 Taskbar

2.6 Battery and Charger

2.6.1 Battery

2.6.2 Recharging Method

2.6.3 Description of the Power Indicator State.......... 8 2.6.4 Description of the Battery State

2.7 Settings

2.7.1 Language

2.7.2 Bluetooth match

3 Use X-431Diagun to diagnose vehicles

3.1 Automotive Diagnosis Preparation and Connection. 12 3.1.1 X-431Diagun preparations

3.1.2 TF Card Installation

3.1.3 Connect X-431Diagun

3.2 Begin to Diagnose Vehicle

3.2.1 Diagnostic Program

3.3 How to Diagnose

3.3.1 Read Fault Code

3.3.2 Print

3.3.3 Read Datastream

3.3.4 Actuation Test

3.3.5 Driving Record Administration

3.4 Flow chart for diagnose procedure

3.5 How to diagnose two cars at a time

3.5.1 Read the datastream of the first car

3.5.2 Read the datastream of the sencod car

iv LAUNCH X-431Diagun User's Manual 3.5.3 Comparison and Analysis of Datastream

4 Update of Diagnostic Software

4.1 User Registration

4.2 Member Login

4.3 Software Download

4.4 Software Update

4.5 Purchase and Update Software


vLAUNCH X-431Diagun User's Manual

1 Introduction X-431Diagun is a newly developed wireless diagnostic computer with full color display screen. It is a highly integrated product with automotive electronic technology application and information network technology.

"Portable Vehicle Fault Diagnosis Technology" is an advanced vehicle diagnosis technology first created and advocated by LAUNCH and represents the highest level of vehicle diagnosis technology in the world, it leads the development trend and offers the best solutions. X-431Diagun can test almost all the domestic cars and the imported ones from Asia, Europe and America. X-431Diagun diagnoses two cars at a time, compares and analyzes the data to find the fault. It features high quality test, upgrading fast any where at any time and synchronized with the newest international models. It’s more credible in quality and performance when compared with other products. The printer, connected with X-431Diagun through USB port, prints the diagnosis result in real time and the TF card with large capacity stores the diagnosis result. Compared with other diagnostic tools, it has better quality and performance. It features smart design, portable, full color touch screen, easy to operate, supporting multiple languages and wide-range use. Besides, wireless connection and data transfer are realized by Bluetooth for easy use.

LAUNCH X-431Diagun User's Manual

2 X-431Diagun

2.1 X-431Diagun Component Descriptions X-431Diagun includes: X-431Diagun main unit(right) and X-431Diagun connector(left)-see fig.2-1. X-431Diagun main unit communicates with X-431Diagun connector via wireless Blue Tooth (also supports wire connection).

–  –  –

2.4 X-431Diagun Specifications Operating System: WIN CE 5.0 CPU: 400 MHz ARM9 Memory Card: 1G TF Card Main Unit: Universal Serial Bus/USB Main Unit Power: DC5V X-431 Diagun Connector: DC12V/24V Printer Interface: USB Display Screen: 480X272, 4.3-inch LCD with touch screen Rechargeable Battery: 1530 mAh Bluetooth: theoretically 100m, suggest 20-50m Upgrading Interface: USB Support wire communication Extendible external memory

–  –  –

2.6 Battery and Charger 2.6.1 Battery Your appliance is powered by a rechargeable lithium battery. The followings, such as crush the battery, short-circuit the battery, dispose of the battery in a fire or in the high temperature environment and dispose as household waste etc, are prohibited. The warranty period of battery is 6 months.

2.6.2 Recharging Method Two options to recharge X-431Diagun: one is to use the charger (see the No.6 of Diagram 2-2 in chapter 2.3 for details); the other is to use an external power supply (DLC) via wire connection.

2.6.3 Description of the Power Indicator State Recharge through the charger Recharge it under conditions of power off, power on and stand-by mode.

The power indicator (green light) stays on when recharging and off when the battery is fully recharged.

Note: It is better to charge in stand-by mode for charging saturation.

(How to set ‘standby’: click the start menu " ", a dialogue box will be popped up, click "Suspend", or press the power key on the main unit; press the power key again to resume the normal state and actuate the screen) Recharge through DLC Recharge it under conditions of power off, power on and stand-by mode.

The power indicator (green light) always on when charging and off when the battery is fully recharged.

2.6.4 Description of the Battery State

1. The appliance could be turned on either being connected to the charger or an external power supply. " ” icon would then appear in the taskbar,

Power Properties interface shows ‘charging’, as shown below:

LAUNCH X-431Diagun User's Manual Note: Click the start menu " "at the bottom left of the interface to find "control panel". With a new window pops up, double click "Power", and the power properties interface appears. You can also double click the icon for ‘battery’ in the taskbar to open the Power Properties interface, as shown above.

2. When using the appliance without connecting to an external power supply, if the battery power is more than 40%, you could not find the icon of battery in the taskbar, the Power Properties interface then indicates battery is in normal states, and shows actual battery power.

3. When using the appliance without connecting an external power supply, the icon " " appears in the taskbar if the battery power is lower than 40% and above 10%. The Power Properties interface indicates the battery is running low and shows the actual battery power.

4. When using the appliance without connecting to an external power supply, if the battery power is less than 10%, a dialogue box for warning will be popped up and the icon " " appears in the taskbar. The Power Properties interface indicates the battery power is too low and shows the current battery power.

LAUNCH X-431Diagun User's Manual

2.7 Settings Here we will introduce how to set "Language" and "Bluetooth match".

–  –  –

3 Use X-431Diagun to diagnose vehicles

3.1 Automotive Diagnosis Preparation and Connection 3.1.1 X-431Diagun preparations

1. General Test Condition Ignition switch on.

Battery voltage of the vehicle should be 11-14V or 18-30V, and the rated working voltage of X-431Diagun Connector is 12V or 24V.

Throttle should be closed.

Ignition timing and idle speed should be within specification range, water and transmission oil temperature is in normal working range (water temperature is 90 – 110°C and transmission oil temperature is 50 – 80°C).

2. Select Test Connector X-431Diagun is armed with an OBDⅡ 16PIN connector. Select the corresponding connector (optional) when testing a vehicle with non-OBDⅡ 16PIN DLC.

3.1.2 TF Card Installation

–  –  –

3) Close the leather cover. The installation finished, shown in 3-1d.

Note: You can hear a clicking sound if you insert the TF card in the right place. Press the card slightly, it will be ejected automatically.

3.1.3 Connect X-431Diagun X-431Diagun could also diagnose two cars at a time by connecting two X-431Diagun connectors (one is supplied and one is optional), one communicates by blue tooth (wireless) and the other communicates by cable ( wire connection), so, cable ( wire connection) and blue tooth (wireless) connections are the two connect options.

Cable ( wire connection) Connection Procedure of X-431Diagun:

Insert the TF card into the slot;

Link one end (20PIN Male) of the X-431Diagun main unit diagnostic cable with X-431Diagun main unit diagnose interface;

Link the other end (12PIN connector) of X-431Diagun main unit diagnostic cable with one end (12PIN port) of selected X-431Diagnun connector.

Find out the vehicle’s DLC;

Connect the other end of X-431Diagun diagnosis connector to the vehicle’s DLC.

Blue Tooth (wireless) Connection Procedure of X-431Diagun Insert the TF card into the slot;

Find out the vehicle’s DLC;

Plug the X-431Diagun diagnosis connector into the vehicle’s DLC Note: The Bluetooth indicator on the X-431Diagun diagnostic connector is off when wire diagnoses is carried out.

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