Launch X-431 GDS User manual

V1.00.001

2012-05-07

LAUNCH X431GDSSensorboxManual

stored in a retrieval system or transmitted, in any form or by any means

of electronic, mechanical, photocopying and recording or otherwise,

without the prior written permission of LAUNCH.

This manual is designed only for the use of this unit. LAUNCH is not

responsible for any use of this manual on the other units.

The manual and all the samples herein can be changed without prior

notice. 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

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.

This device is only for professional technicians and maintenance

personnel.

LAUNCH X431GDSSensorboxManual

Registered Trademark

LAUNCH is a registered trademark of LAUNCH TECH. CO., LTD.

(LAUNCH) in China and other countries. In other countries where any of

the LAUNCH trademarks, service marks, domain names, logos and

company names is 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 trademarks, service marks, domain names, logos or

company name of LAUNCH or any third party without permission from

the owner of the applicable trademarks, service marks, domain names,

logos or company name. You may visit LAUNCH at

http://www.cnlaunch.com for the information of Launch's and the other

specialized diagnostic tools, or contact Launch by visiting

http://www.X431.com or writing to Customer Center, 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.

iii

LAUNCH X431GDSSensorboxManual

Precaution on Operation

zThe appliance is a sophisticated electronic device, never have it

clashed when in use.

zMain unit screen may flash at the moment of engine ignition, which

is normal.

zYou may unplug the main unit if the program can not be actuated or

confused screen occurs. Plug again to continue the operation.

zMake sure the appliance is properly connected to the DLC to avoid

communication interruptions.

zDuring operation, keep the screen upward and leveled.

zBe careful when plugging and unplugging the main cable and

diagnostic connector. Tighten the screw before operation to avoid

unexpected disconnecting and/or damage to the port.

zHandle with care. Avoid collision. Unplug the power after operation.

zDo not insert or pull the GDS card when the main unit is powered

on.

zAfter the operation, the stylus shall be inserted into the hole on the

back of the main unit, and put away the cable and connector, etc

accessories to the box to avoid the lost.

zUnplug the power cable by holding the connector, not the cable

itself.

LAUNCH X431GDSSensorboxManual

Contents

1 FOREWORD ................................................................................ 2

1.1 PRODUCT SUMMARY ................................................................. 2

1.2 PRODUCT FEATURES.................................................................. 3

1.3 PRODUCT FUNCTION ................................................................. 3

1.4 TECHNICAL PARAMETERS.......................................................... 3

2 STRUCTUREAND ACCESSORIES.......................................... 5

2.1 SENSORBOX STRUCTURE........................................................... 5

2.2 SENSORBOX ACCESSORIES ........................................................ 6

3 SENSOR SIMULATION.............................................................. 8

3.1 CONNECTIONS .......................................................................... 8

3.2 SIMULATION TEST ..................................................................... 8

3.2.1 DC voltage simulation.......................................................9

3.2.2 Constant frequency simulation ........................................11

3.2.3 Predefinition waveform simulation..................................12

3.2.4 Hand-drawn waveform....................................................15

3.2.5 Precautions on checking vehicle sensor..........................17

4 AUTO MULTIMETER .............................................................. 20

4.1 MAIN MENU ........................................................................... 20

4.2 TEST SAMPLE .......................................................................... 21

LAUNCH X431GDSSensorboxManual

1 Foreword

1.1 Product summary

X-431 GDS is a new generation of sophisticated automotive

diagnostic product with colorful screen and powerful functions

developed by LAUNCH.

It provides an optional function of automotive sensor simulation test.

“Sensor simulation test” function is specially designed to diagnose

and simulate vehicle sensor faults quickly and conveniently,

including "DC voltage simulation", "Constant frequency simulation",

"Predefinition waveform simulation", and "Hand-drawn waveform

simulation".

Vehicle sensors are the signal input devices for electrical control

systems, which can transform all kinds of running parameters, such

as vehicle speed, coolant temperature, engine RPM, air flow, throttle

opening, etc., into the electronic signal for the vehicle computer who

can optimize the engine running status per the above-mentioned

parameters to keep the engine working in a prime status.

Meanwhile, it integrates the functions of automobile multimeter,

which enables users to perform voltage, resistance, frequency test.

(The function utilizes the same hardware device as the sensor

module)

LAUNCH X431GDSSensorboxManual

1.2 Product features

zDC voltage simulation

zConstant frequency simulation

zPredefinition waveform simulation

zHand-drawn waveform simulation

1.3 Product function

Provides automotive sensor simulation test and multimeter test

function.

1.4 Technical parameters

Sensorbox

Parameters Scope

Precision ±5%

Voltage range -12V～+12V

Max output current 70mA

Predefined frequency range 0～150Hz

Square-wave signal pulse frequency 0～15KHz

Square-wave signal duty ratio 10％～90％

LAUNCH X431GDSSensorboxManual

Multimeter

Parameters Scope

Precision ±5%

Testing range DC-400V～+400V

Voltage test

Input

impedance

10Mohm

Resistance test Testing range 0～40Mohm

Testing range 0～25KHz

Input

impedance

1000Gohm

Frequency test

Input voltage 1～12V

LAUNCH X431GDSSensorboxManual

2 Structure and Accessories

2.1 Sensorbox structure

Fig. 2-1 Structural diagram of Sensorbox

Table 2-1 shows the ports and indicators for X-431 GDS sensorbox

No. Name Description

1 VΩHz Measuring terminal of multimeter

2 COM Common terminal of multimeter

3 Power interface

Connect DC 12V power via the power

adaptor.

4 B-shaped USB Connect main unit via USB connect wire

LAUNCH X431GDSSensorboxManual

interface as a separate USB device

5 Power indicator Sensor power indicator, which will be

steady red after the sensor module is

powered up.

6 Indicator for

sending data to

main unit

Indicator (Green) for sending data to

main unit.

7 Indicator for

receiving data

from main unit

Indicator (Green) for receiving data from

main unit.

2.2 Sensorbox accessories

X-431 GDS sensorbox accessories include sensor test cable, probe

etc. See Table 2-2.

As the product configuration can be different, the accessories

included with the product may differ from the accessories listed on

this manual. Please see the packing list attached to the product for

the detailed accessories.

Table 2-2 Accessory checklist

No. Name Picture

1 sensor test cable

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