Xtool EZ300PRO User manual

EZ300PRO Diagnosis System
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Declaration
1. The manual is designed for the usage of EZ300PRO, applying to EZ300PRO automotive
diagnosis platform.
No part of this manual allowed to 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 Xtool.
2. This electronic control system diagnostic unit is for professional vehicle maintenance
technicians. It has some reliability, but it can not rule out vehicle damage and loss, caused by
customer technical problems, vehicle problems or other factors, for these reasons, users need
to take risks.
3. Use the device only as described in this manual. The user will be responsible solely for the
after-effects of violating the laws and regulations caused by using the product or its data
information, Xtool will not bear any legal responsibility for that.
4. Xtool shall not be liable for any incidental or consequential damages or for any economic
consequential damages arising from the accidents of individual users and the third parties,
misuse or abuse of the device, unauthorized change or repair of the device, or the failure
made by the user not to use the product according to the manual.
5. All information, specifications and illustrations in this manual are based on the latest
configurations and functions available at the time of printing. Xtool reserves the right to make
changes at any time without notice.
6. is the registered trademark of Shenzhen Xtooltech Co., Ltd.
7.In the countries that the trademarks, service marks, domain names, logos and the name of
the company do not be registered, Xtool claims that it still reserves the ownership of the
unregistered trademarks, service marks, domain names, logos and the company name. All
other marks for the other products and the company’s name mentioned in the manual still
belong to the original registered company. Without written permission from the trademark
holder, no one shall use the trademarks, service marks, domain names, logos and company
name of Xtool or other companies mentioned
8. Please visit http://www.xtooltech.com for more information about EZ300PRO.
9. Xtool reserves the right for the final interpretation of this manual content.

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CONTENT
CHAPTER ⅠAbout EZ300PRO....................................................................................................... 3
1. Appearance......................................................................................................................................... 3
1.1. Front View........................................................................................................................................ 3
1.2. Back View.........................................................................................................................................3
2.Layout of EZ300PRO Tablet.............................................................................................................. 4
2.1. Top View of EZ300PRO Tablet.................................................................. 错误！未定义书签。
3. Layout of VCI Box...........................................................................................错误！未定义书签。
4. EZ300PROTechnical Parameters.................................................................................................... 4
CHAPTER ⅡHow to use EZ300PRO............................................................................................. 5
1. EZ300PRO Activation........................................................................................................................ 5
1.1. Please activate EZ300PRO before you use it to test vehicles................................................ 5
1.2. Connect to WiFi first....................................................................................................................... 5
2. EZ300PRO Main Interface and Functional Buttons Descriptions...............................................5
2.1. Main Interface.................................................................................................................................. 6
2.2. Sub-menus and Function Buttons................................................................................................ 6
2.3. Toolbar Function Buttons............................................................................................................... 7
3. Vehicle Connection Diagnosis.......................................................................................................... 7
3.1. Vehicle Connection Test.................................................................................................................7
3.2. Precautions Before Use................................................................................................................. 7
4.Diagnosis.............................................................................................................................................. 8
4.1. Menu Options...................................................................................................................................8
4.2. Test Functions..................................................................................................................................9
4.3. Read ECU...................................................................................................................................... 10
4.4. Read DTCs.....................................................................................................................................11
4.5. Clear DTCs.................................................................................................................................... 12
4.6. Read Live Data..............................................................................................................................12
4.7. Special Functions..........................................................................................................................14
4.8. Actuatation/Ative/Components Test........................................................................................... 15
5.Settings............................................................................................................................................... 16
6. Diagnostic Reports...........................................................................................................................17
6.1. PDF Files:.......................................................................................................................................17
6.2. Pictures:..........................................................................................................................................18
6.3. Data Playback:.............................................................................................................................. 18
7. UPDATE.............................................................................................................................................18
8. Xtool Cloud System(Coming soon)............................................................................................... 19
9. Remote Access.................................................................................................................................19
CHAPTER ⅢDiagnostic Link Connectors of Different Vehicle Models................................... 20
1. Diagnostic Link Connectors Diagram of Some Vehicle Models................................................20
2. Location Diagram of Vehicle Diagnostic Link Connectors......................................................... 23
3. Diagnostic Link Connectors Terminal Definition and Communication Protocols................... 24
3.1. Standard OBDII Diagnostic Link Connector............................................................................. 24

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CHAPTER ⅠAbout EZ300PRO
1. Appearance
1.1. Front View
1.2. Back View

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2. Top View of EZ300PRO Tablet
① ② ③
①MicroUSB：Battery charge or data synchronization with PC
②DB15 Port：Supports wired connection with car by the cable
③Power Button: Power on or power off
4. EZ300PRO Technical Parameters
Operating System: Android
Processor：Quad-core 1.6GHz Processor
Memory: 1G RAM，16G FLASH
Display: 7.0 inch touch screen with 1024×600 resolution
Sensors: Gravity Sensor，Ambient Light Sensor
Audio Input/Output: Microphone, Dual Speakers, 4-Band 3.5 mm stereo/standard headset jack
Power and Battery: 4000mAh, 3.7V lithium-polymer battery
Power Voltage: 5V
Power Consumption: 8W
Operating Temperature: -20 to 50℃(-4 to 126℉)
Humidity: <90%
Dimension (L*W*H): 218*150*29mm

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CHAPTER ⅡHow to use EZ300PRO
1. EZ300PRO Activation
1.1. Please activate EZ300PRO before you use it to test vehicles.
1.2. Connect to WiFi first. Input activation code, product serial number (each device will have a
serial number and activation code), nickname (workshop’s name or user’s nickname), login
account (can be your email address or cell phone number) and password, then system will
remember it. Activation only needs to be done for the first time, and you never have to do it
again. The diagnostic interface will come up after activation.
2. EZ300PRO Main Interface and Functional Buttons Descriptions

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2.1. Main Interface
Tap on EZ300PRO application, the main interface and sub-menus shows up as below.▼
2.2. Sub-menus and Function Buttons
Function Buttons
Descriptions
Configures EZ300PROTablet to perform as
diagnosis system. It can read diagnostic
information, view live data, perform actuation tests
and special functions and etc.
Users can view all the diagnostic reports and
diagnostic data generated in the process of
diagnosis.
Selecting “Settings”, users can make the
language setting and other system related
settings.
Online Communication Platform.(Coming soon)
Provide remote assitantance
Click UPDATE after it connects with internet, then
you can download the latest diagnostic software
directly.

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2.3. Toolbar Function Buttons
Function Buttons
Descriptions
Returns to previous interface
Returns to the main interface of Android System
Shows recently used applications
3. Vehicle Connection Diagnosis
3.1. Vehicle Connection Test
3.1.1. Wired Connection ①→②→③→④
a. Connect cables and EZ300PRO in following order: ①→②→③→④
b. Switch on the ignition and turn on EZ300PRO tablet, then tap on EZ300PRO application to
test vehicles. (Shown as follows)
1EZ300PRO Mainframe ②Main Test Cable ③OBDⅡ-16 ④Vehicle
3.2. Precautions Before Use
3.2.1. The vehicle power supply has to meet the normal voltage limits DC4.8V---5V.
3.2.2. When pull and plug test wire harness, users should pinch the front-end of the wire
harness to pull and plug, not pull the middle section of the wire harness. Users should check
the corresponding direction of the port and plug in horizontally when they plug the wire
harness, instead of inserting in an oblique way, which may damage the terminal.

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3.2.3. When taking some special functions tests, users are required to operate the device
according to operating instructions. For vehicle, it has to strictly meet the requirements, for
example, the conditions that some vehicle models need to be reached are as follows: engine
temperature 80℃/105℃, turn off the loads (such as headlights, air-conditioner, etc.), put
accelerator pedal in released position, etc.
3.2.4. The ECU for Chinese domestic vehicle models are relatively disorderly, so when users
meet conditions, such as the car can not be tested or the test data is wrong, they should
consider whether the selected menu corresponds to the tested electronic control system, or
they can find the car ECU and select the right menu according to the model number on the
ECU label.
3.2.5. If users can not find the tested vehicle model or electronic control system in EZ300PRO
test menu, they may need to update the software or consult Xtool technical service department
3.2.6. Banned to have connection test by using harness not from Xtool to avoid unnecessary
losses.
3.2.7. Banned to power off directly in the communication between EZ300PRO and vehicle.
Users should cancel the task and return to the main interface, then power off.
3.2.8. The device should be put and lifted slightly to avoid collision when using EZ300PRO.
When click the screen, touch it gently to guarantee the service life of the touch screen.
3.2.9. During long period of non-use, please disconnect the power and turn it off.
4.Diagnosis
4.1. Menu Options
4.1.1. After EZ300PRO tablet connected to vehicle via main cable, diagnosis can be
performed now. The diagnostic interface comes up as below.

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4.1.2. Users can choose menu based on their actual needs: selection for Europe means
entering European cars menu, selection for Asia means entering Asian cars menu, selection
for America means entering American cars menu, selection for China means entering
Chinese cars menu. Users also can input vehicle model to search.
4.2. Test Functions
4.2.1. Take Volkswagen car for example, select Diagnosis, then select Europe Car, users
can see Volkswagen’s logo. If the logo has not been seen, please swipe up and down or enter
the car model to research.
Different vehicles have slight different menus.
Common main function menu includes the following options:
Read ECU: this function is to read ECU version information, which is the equivalent of
“System Identification” or “System Information” in some electronic control systems, all mean to
read ECU related software and hardware versions, models and production date of diesel
engine, part number, etc. It is convenient for us to make record in the maintenance process,
and it also makes later date feedback and management easier.
Read DTCs: read trouble codes stored in ECU.
Clear DTCs: clear current and historical trouble codes memory in ECU, under the premise that
all the troubles are eliminated. The trouble codes can not be erased without eliminating all the
troubles, which will cause the diagnostic tool always reading the trouble code because the
code will always be saved in ECU. Suggestion: users should better not to clear trouble codes,
we need record the trouble details after reading code, which is provided as reference for
maintenance. After dealing with troubles, there will be no trouble code when we re-read.
Read Live Data: that is to read the parameters of running engine, such as oil pressure,
temperature, engine speed, fuel oil temperature, coolant temperature, intake air temperature,
etc. Based on these parameters, we can judge directly where the problem lies, which helps to
narrow the scope in maintenance. For some vehicles, during their actual operation, the

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problems such as performance characteristics offset, sensitivity reduction, can be judged in
live data. This function needs us very familiar with engine parameters, for instance, when idle
speed is 800RPM or 750RPM, coolant operating temperature is between 80～105℃, what are
the operating voltage and time of each sensor and actuator?
Special Functions: depends on vehicle models.
Actuation/Ative/ Components Test: mainly to judge whether these actuating components of
engine are working properly.
4.2.2. Toolbar function buttons descriptions
Function Buttons
Descriptions
Returns to previous interface
Print testing data
Click it to record the data, click again to send your feedbacks to XTOOL after
service center
Record data feedback button as shown below, showing diagnostic software version and
various information in the diagnostic process.
4.3. Read ECU
This function is to read ECU version information, which is the equivalent of “System
Identification” or “System Information” in some electronic control systems, all mean to read
ECU related software and hardware versions, shown as below.

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4.4. Read DTCs
Select Read Trouble Codes to read trouble codes stored in ECU. Screen will show the trouble
code and its definition when read the trouble codes, shown as below.
Tip: In the process of diagnosis, if the device shows “System is OK” or “No Trouble Code”, it
means there is no related trouble code stored in ECU or some troubles are not under the
control of ECU, most of these troubles are mechanical system troubles or executive circuit
troubles, it is also possible that signal of the sensor may bias within limits, which can be judged
in Live Data.

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4.5. Clear DTCs
4.5.1. Return to the previous step, select Clear DTCs to clear current and historical trouble
codes memory in ECU. Performing this function will clear all the current and historical trouble
codes. Make sure whether the trouble codes have been recorded before clearing, shown as
below.
4.5.2. Click YES to make clear confirmation, if the communication is normal, it will show
“Trouble Codes Successfully Cleared” or “Trouble Codes Cleared”. Generally, users need
re-read trouble codes after cleaning them to confirm whether the trouble codes have been
cleared.
4.6. Read Live Data
Auto ECUs send out operating parameters and working status of various components in the
form of Electronic Signal, here Electronic Signal refers to Live Data. Common Engine Live
Data includes Engine Speed, Throttle Position Sensor Voltage, Oxygen Sensor Voltage,
Coolant Temperature, Spark Advance Angle, Idle Speed Switch State, Intake Air Temperature,
Intake Pressure, etc.

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Tips: Live Data is the important function for maintenance technicians to further diagnose the
troubles. This function needs maintenance technicians very familiar with sensor data of each
system, control signals and control modes, all which are the indispensable basis of using Live
Data function for maintenance technicians. (The following is test conditions and typical values
of common live data)
Test Items
Unit
Normal Data
Test Conditions & Typical Values
1.Engine Speed
rpm
0-6000
Engine warmed-up: 750-850rpm
2.Engine Coolant
Temperature
℃
-40-150
Engine warmed-up: 85-95℃
3.Throttle Percentage
0-100
Throttle closed:0%, Throttle
wide-open: ＞85
4.Injecting Pulse Width
ms
0-15
Engine warmed-up: 3.5-4.5ms
5.Intake Air Temperature
℃
-40-150
Show value a little higher than
ambient temperature
6.Battery Voltage
v
0-15
Idle speed: 1.5-13.5V
7.Injection closed-loop
correction
0-1.99
8.Load
ms
0-15
9. Angle of Ignition
Advance
℃
0-50
Engine warmed-up: 5-15 ℃
variations
10.Air Intake
kg/h
0-255
Engine not started: 0
11.Intake Pressure
hpa
0-1013
Engine not started: 1013hpa
12. Idle-speed Adjustment
Status
0-255
13.Oxygen Sensor
mv
0-1000
Engine warmed-up: 50-960mv

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variations
Display Modes
There are two modes to view Live Data, users can choose optimum mode according their own
needs and different parameter types.
Dashboard Mode: Display parameters in the form of simulating instrument graphics.
Graph Mode: Display parameters in the form of graph.
4.7. Special Functions
More special function will be found in different vehicle models.

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4.8. Actuatation/Ative/Components Test
Test Conditions: Ignition on engine off
If engine started or rotation speed signal recognized, actuating component diagnosing will be
interrupted.
In the process of actuating components diagnosis, single component will always be in the
trigger status until the next component being activated.
Before repeating actuating components diagnosis, users should start engine in short-time, or
turn ignition off for 2 seconds.
Actuating components can be checked by hearing or touching.
In the process of all actuating components diagnosis, electric fuel pump is always working.
10 minutes later, actuating components diagnosing is terminated.
Actuating Component: it is responsible for executing various instructions issued by ECU,
which is the instruction completer.
4.8.1. Return to Dynamic Diagnostic Data, enter Actuating Components Test and it will

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show the menu of the actuating components that carry out action test, shown as below.
Tip: Actuating Components Test performs function tests for parts of system actuating
components. When performing this function, the diagnostic tool will take action test by
simulating ECU signal to judge whether the actuating components or circuits are good.
Return to Dynamic Diagnostic Data, enter Actuating Components Test and it will show the
menu of the actuating components that carry out action test.
5.Settings
Select enter Settings; users can set the language, unit and other system related options:
Languages: select the language. Please tick the needed option from multi-language options on
the right.

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Units: Select unit of measurement. Users can tick Metric or English measurement.
System Settings: Android system setup, such as wireless, audio frequency, light sensation,
etc.
6. Diagnostic Reports
Diagnostic Reports is for checking the saved files, such as the report of Live Data or Trouble
Codes or pictures generating in the process of diagnosis, users also can know what cars have
been tested. It includes three parts: PDF Files, Pictures and Data Playback.
6.1. PDF Files:
PDF files are the diagnostic reports of Live Data or Trouble Codes in the process of diagnosis.

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Entering PDF can check various diagnostic reports.
6.2. Pictures:
Pictures are all the screen capture files in the diagnosis process.
6.3. Data Playback:
Data Playback can check what cars have been tested and play recorded Live Data &freeze
frame.
7. UPDATE

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EZ300PRO doesn’t need insert a card for updating, users only need to tap on EZ300PRO
application and click UPDATE , shown as follows.
8. Xtool Cloud System(Coming soon)
All the auto maintenance technicians who use our products can not only look up the
maintenance information that we put on our cloud service platform conveniently, and combine
the diagnosis result to query, and communicate with other Xtool users in our forum, but can
also access various online databases of maintenance and diagnostic skills and vehicle
maintenance plans.
9. Remote Access
In the maintenance process, when maintenance technicians encounter problems and don’t
know how to solve, they can open this application and ask for remote assistance.
How to get remote assistance from Xtool Technical Assistance Center
a. Open EZ300
b. Click Remote Access and open TeamViewer interface. Generate and display device ID.
c. Your partner also need download and install TeamViewer complete version.
d. Enter your partner’s TeamViewer ID and send remote request. The system will pop up a
window and allow your partner to control yours, and then remote control begins.

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CHAPTER ⅢDiagnostic Link Connectors of Different Vehicle
Models
1. Diagnostic Link Connectors Diagram of Some Vehicle Models
*AUDI A6: the OBD plug is on the lower left side of the dashboard, we can use SMART
OBDII-16 connector.