Xtool VAG401 - User Manual

Table of Contents
Safety Precautions…………….……….…………..…………..2
About VAG401………….………..……………………………..4
1. Applications……………….……….……………………….…..4
2. Available Functions…………….…..…………….……………4
3. Supported Systems……………………………….…………..4
4. Professional function.………………………………………...4
5. Main features…………………………………….……………5
6. Appearance and Key Descriptions …………………………5
Operation Instructions……………….....……………………..6
1. Preparation for Testing…………….………….……………..6
2. Connect the VAG401….……………….…………………….7
3. Diagnosis system…………………..…..…………...…………8
3.1 READ ECU version …………………….…….….……......10
3.2 Read Fault codes.………..……………………..…….10
3.3 ERASE Fault…….…………………….……………….11
3.4 Read measuring data value……………………..……11
3.5 Output test.…………………………………..……….…12
3.6 Basic items setting……………………………..………13
3.7 Route adaptation…………….…….…………………..13
3.8 Coding ……………………..….……………………….…13
3.9 Login the system……………………………………..14
3.10 Advanced ID ……………………...………….……….15
3.11 System being ready…………………………………..16
3.12 Professional function…………………………………16
4. Language select…………………………………………….. 18
5. Contrast value adaptation………………………………..….18
6. Lcd test…………………..………………………………...… 19
7. Key testing…………………………………………………….19
8. About…………………………………………………………..20
9. Location of Data Linking Connection……………………….21

Xtool VAG401 Specifications

General

Screen Resolution	320 x 240 pixels
Compatibility	VW, Audi, Seat, Skoda
Operating Voltage	DC 12V
Display	2.8 inch TFT color display
Functions	Adaptation
Protocols	KWP2000, CAN
Languages	English, Spanish, German

Summary

Safety Precautions

Operation Instructions

1. Preparation for Testing

Outlines essential checks before testing, including fluids, filters, belts, wiring, and general mechanical soundness.

Connect the VAG401

Diagnosis system

3.1 READ ECU version

Reads and displays the control unit information of the vehicle's ECU.

3.2 Read Fault Codes

Reads and displays error codes, allowing navigation through each reported trouble code.

3.3 Erase fault codes

Clears fault codes from the system after user confirmation.

3.4 Read measuring data value

3.5 Output test.

3.6 Basic items setting.

3.7 Route adaptation

3.8 Coding

3.9 Login the system

3.10 Advanced ID

3.12 Professional function

Accesses special functions like Oil Reset and Srs Reset.

Contrast value adaptation

Lcd test

Key testing