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LAUNCH 

                        X-431Diagun User's Manual 

13 

3 Use X-431Diagun to Diagnose vehicle 

3.1 Automotive Diagnosis Preparation and Connection 

3.1.1 X-431Diagun preparations 

1.

 

General Test Condition 

z

 

Ignition on. 

z

 

The vehicle battery voltage is 11-14V or 18-30V, and the working 

voltage of X-431Diagun is 12V or 24V. 

z

 

Throttle is closed, that is to say the throttle closed position switch is on. 

z

 

Ignition timing and idle should be in the valid range, and the water 

temperature and transmission oil temperature must reach the normal 
operation temperature (water temperature is 90 – 110°C and 
transmission oil temperature is 50 – 80°C) . 

2.

 

Test Connection Selection 

X-431Diagun is armed with an OBD

 16PIN connector. Select the 

corresponding connector (optional) when testing the vehicle with 
non-OBD

 16PIN DLC. 

3.1.2 TF Card Installation 

 

 

 

 

Figure 3-1 TF Card Installation 

Summary of Contents for X-431Diagun

Page 1: ...oblems 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 re...

Page 2: ...estions relating to this manual General Notice z Other product names used herein are for identification purposes only and may be trademarks of their respective owners LAUNCH disclaims any and all righ...

Page 3: ...iption of the Power Indicator State 10 2 6 2 Description of the Battery State 10 3 Use X 431Diagun to Diagnose vehicle 13 3 1 Automotive Diagnosis Preparation and Connection 13 3 1 1 X 431Diagun prepa...

Page 4: ...atastream of the sencod car 32 3 5 3 Comparison and Analysis of Datastream 34 4 Update of Diagnostic Software 35 4 1 User Registration 35 4 2 Member Login 38 4 3 Software Download 39 4 4 Software Upda...

Page 5: ...same time compares and analyzes the data to find the fault Its features are high quality test upgrading fast any where at any time and synchronized with the newest international models Compared with o...

Page 6: ...X 431Diagun main unit and X 431Diagun connector The communication between X 431Diagun main unit and X 431Diagun connector is through wireless Blue Tooth also supports wire connection Figure 2 1X 431Di...

Page 7: ...icator Diagram 2 1 X 431Diagun port and indicator descriptions Power Earphone Hole TF card slot Diagnostic Interface USB Lanyard Diagnostic Connector Blue tooth LED blue Power LED red USB Stylus 11 To...

Page 8: ...Diagun main unit diagnostic cable to connect X 431Diagun main unit and X 431Diagun connector 4 Diagnostic adaptor to connect X 431Diagun connector and 16PIN extension cable 5 Stylus for click operatio...

Page 9: ...grade on the network with wire connection 10 Printer cable to connect the X 431Diagun main unit and the printer 11 Haversack to place X 431Diagun main unit and X 431Diagun connector etc Optional 12 no...

Page 10: ...ard 1G TF Main Unit Universal Serial Bus USB Main Unit Power DC5V Printer Interface USB Display Screen 480X272 4 3 inch LCD with touch Rechargeable Battery 1530 mAh Bluetooth theoretically 100m actual...

Page 11: ...the top right hand corner of the main unit top Main unit will display the initialization screen as shown on the left Note Power off by pressing POWER key for 5 seconds at least After reading the syst...

Page 12: ...nges you complete a calibration If you don t want to calibrate press the power key to skip the calibration screen Note If you don t click accurately the will be present on the screen again and again u...

Page 13: ...nnection state when connected to PC C Battery Icon indicates the battery state for details to see 2 6 D Time sets the time data and time zone by double clicking here with the touch kit E Soft Keyboard...

Page 14: ...rging and goes out when the battery is full Note It is better to charge in stand by mode for charging saturation How to standby click the start menu to find Suspend or press the power key of the main...

Page 15: ...n icon to view the power management interface as shown above 2 When using this equipment without connecting an external power supply if the battery is more than 40 no icon appears in the taskbar and t...

Page 16: ...LAUNCH X 431Diagun User s Manual 12 if the battery is less than 10 the icon appears and indicates the battery is too low...

Page 17: ...t is to say the throttle closed position switch is on z Ignition timing and idle should be in the valid range and the water temperature and transmission oil temperature must reach the normal operation...

Page 18: ...t X 431Diagun X 431Diagun can also diagnose two cars at the same time test with the diagnosis connectors by wire wireless connection one is OEM and the other is optional so wire and wireless connectio...

Page 19: ...re diagnosis Figure 3 2 wire wireless connection 1 and 2 Diagnostic Target 3 and 4 X 431Diagun Diagnostic connector 5 X 431Diagun main unit 6 and 7 DLC Note If the DLC of the tested vehicle is low bat...

Page 20: ...l If the X 431Diagun is low battery do one of the following 1 Provide power through DLC connect the main unit and the diagnosis connector by wire connection 2 Provide power through the charger insert...

Page 21: ...perate X 431Diagun as shown on the left The maker screen will appear as shown on the left Button Descriptions RETURN returns the previous interface PREVPAGE shows the previous page This button is inva...

Page 22: ...English and click OK Click the Benz logo from the maker menu With Benz demo diagnosis program version screen displayed select the version you need Note The operations of other makers and models are t...

Page 23: ...stems diagnosis connector and DLC location The operations are similar Button Descriptions RETURN returns the previous interface HOME resume the program HELP shows the help information PRINT prints the...

Page 24: ...shown on the left 1 Read faulty code 2 Erase faulty code 3 Read datastream 4 Actuation test 3 3 1 Read Fault Code Click Read fault code to perform this function The test result will be displayed on t...

Page 25: ...After connection click PRINT as shown on the left Button Description OK returns the function menu of the diagnostic system With the printer screen displayed select the printer type and the terminal nu...

Page 26: ...ault code from the tested system the screen is as shown on the left Button Description OK returns the function menu of the diagnostic system 3 3 2 Erase Fault Code Click Erase fault code on the functi...

Page 27: ...will appear on the screen if all the fault codes were erased or no fault code from the tested system Button Description OK returns the function menu of the diagnostic system 3 3 3 Read Datastream Cli...

Page 28: ...isplays the dynamic data of the selected datastream RETURN returns the previous interface Click OK this screen contains the dynamic data of the selected datastream item as shown on the left Click RECO...

Page 29: ...ct the datastream And then click GRAPH to view the datastream oscillograph not more than two as shown on the left 3 3 4 Actuation Test Check the system parameter for normality Click Actuation test on...

Page 30: ...ck Cylinder 1 injector as shown on the left Note Click Cylinder 1 injector to check it for normal operation Set succeeded as shown on the left Note The relevant fault will occur with set failure or ab...

Page 31: ...tream and oscillograph With the maker screen displayed click CALL as shown on the left After clicking the datastream information documents in each time segment appear for different makers as shown on...

Page 32: ...elect mode and item Select CHAR or GRAPH as you want as shown on the left After selections click OK The recorded dynamic data will appear again as shown on the left Button Descriptions Left shows the...

Page 33: ...onnected by Wire connection and the other is connected by Wireless connection for details to see 3 1 3 3 5 1 Read the datastream of the first car After connecting the fist car by wireless connection d...

Page 34: ...version 10 01 and click OK Note The operations of other makers and models are the same as Benz For details to see relevant system operation introduction and here we only take Benz demo program for exa...

Page 35: ...k the datastream you want displayed with blue as shown on the left Click OK and the dynamic data of the selected datastream items will appear on the screen as shown on the left Until now reading the d...

Page 36: ...iagun User s Manual 32 3 5 2 Read the datastream of the sencod car Click the Switch icon in the bottom right hand corner of the screen to switch to desktop as shown on the left As shown on the left af...

Page 37: ...he screen as shown on the left Select as the procedure order as reading the datastream of the first car for details to see 3 5 1 Note z Do select a car with the same maker or version z The Vehicle_2 i...

Page 38: ...at from a good The two cars must be from the same model Click the Switch icon in the bottom right hand corner of the screen to view the datastream information of two cars in order to realize the compa...

Page 39: ...Registration The Internet update function of X 431Diagun provides user with a convenient and quick way to download the software from www x431 com for update First visit www x431 com The homepage will...

Page 40: ...section Member login The terms of service are shown on the screen After reading and fully understand it click I accept button to enter the interface as shown in the figure below Fill in Production In...

Page 41: ...y 2 If the filled serial No or registration No is invalid the screen will display the message as shown in Figure below Click OK button to return to the previous interface to re fill the correct number...

Page 42: ...eted 4 2 Member Login The user becomes the registered member after registration Member can log in the website by filling username password and user type in the interface as shown in the figure below A...

Page 43: ...ew Password After entering the right old password then can renew the password Awarded for complaint If users meet some trouble during the operation he can feedback to LAUNCH Effective complaint will b...

Page 44: ...center users can buy the software that is beyond the free download period After purchase successfully the purchased software will be automatically added to the download center list Update Tool Downlo...

Page 45: ...op down menu select the language and the version The default version is the latest version Click down icon then click save on the pop up menu to save the file Click view to learn the detailed informat...

Page 46: ...ith TF card to PC 4 4 1 Direct Update X 431Diagun main unit connection and drive program installation Necessary hardware 1 A computer that can access the internet 2 A X 431Diagun main unit and a USB c...

Page 47: ...rive program You can download it from www x431 com when you perform the direct update otherwise the computer can not identify the X 431Diagun main unit Operating system Windows Me 2000 XP Mac OS 9 x M...

Page 48: ...n to Update Software Open the Software Update folder double click the icon and install the X 431Diagun update tool according to the Wizard After the installation the update icon of the X 431Diagun wil...

Page 49: ...m doesn t exist on the right find the update program by clicking the icon You can click the corresponding icon of G disc to view the files stored in the TF card and cancel some old software versions i...

Page 50: ...ard into the card reader as shown in Figure 3 the side printed with words is upward and insert the TF card into the card reader perpendicularly as shown in Figure 4 Figure 5 and Figure 6 c Connect the...

Page 51: ...date process Please try again after solving the problem 1 TF card reader is poor connected to the computer or the drive program of the TF card is installed incorrectly 2 TF capacity is not enough 3 Ot...

Page 52: ...er V Class The screen will display the concrete information about the Transporter V Class diagnostic software Click order to add the selected software to shopping cart Click pay to buy the software Th...

Page 53: ...LAUNCH X 431Diagun User s Manual 49 Click purchase other to buy other software Note The operation for update center is the same as for the purchase center...

Page 54: ...listed in the update tool what is the reason Answer There are two possible causes 1 The downloaded diagnostic program is not put in the same folder as other diagnostic programs Please move it to the s...

Page 55: ...n with ECU Answer Please make sure that the diagnostic connector and diagnostic program are matching vehicle make Question The screen keeps blank after flashing when the machine is turned on What shou...

Page 56: ...lication interface and run it again If the problem still exists please restart the system About System Setting Question The screen is inactive after the cross cursor appears on the screen Why Answer T...

Page 57: ...User s Manual to set correct time About Operation Question System halts when reading data stream What is the reason Answer It may be caused by a slackened connector Please turn off the machine firmly...

Page 58: ...anner inconsistent with instructions regarding use The exclusive remedy for any automotive meter found to be defective is repair or replacement and LAUNCH shall not be liable for any consequential or...

Page 59: ...28822 E mail X431 cnlaunch com If your unit requires repair service return it to the manufacturer with a copy of the sales receipt and a note describing the problem If the unit is determined to be in...

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