Automotive Diagnostic System GT90 User's Manual v120180622

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FOXWELL is trademark of Shenzhen Foxwell Technology Co., Ltd.

All other marks are trademarks or registered trademarks of their respective
holders.
Copyright Information
©2018 Shenzhen Foxwell Technology Co., Ltd.
All rights reserved.
Disclaimer
The information, specifications and illustrations in this manual are based on the
latest information available at the time of printing.
Foxwell reserves the right to make changes at any time without notice.
Visit our website at:
www.foxwelltech.com
For Technical Assistance, send us email at
support@foxwelltech.com
1
Automotive Diagnostic Platform Genetation III GT90_English_V1.00
One-Year Limited Warranty
Subject to the conditions of this limited warranty, Shenzhen Foxwell
Technology Co., Ltd (“FOXWELL”) warrants its customer that this product is
free of defects in material and workmanship at the time of its original
purchase for a subsequent period of one (1) year.
In the event this product fails to operate under normal use, during the
warranty period, due to defects in materials and workmanship, FOXWELL will,
at its sole option, either repair or replace the product in accordance with the
terms and conditions stipulated herein.
Terms and Conditions
1 If FOXWELL repairs or replaces the product, the repaired or replaced
product shall be warranted for the remaining time of the original warranty
period. No charge will be made to the customer for replacement parts or
labor charges incurred by FOXWELL in repairing or replacing the defective
parts.
2 The customer shall have no coverage or benefits under this limited
warranty if any of the following conditions are applicable:
a) The product has been subjected to abnormal use, abnormal conditions,
improper storage, exposure to moisture or dampness, unauthorized
modifications, unauthorized repair, misuse, neglect abuse, accident,
alteration, improper installation, or other acts which are not the fault of
FOXWELL, including damage caused by shipping.
b) The Product has been damaged from external causes such as collision
with an object, or from fire, flooding, sand, dirt, windstorm, lightning,
earthquake or damage from exposure to weather conditions, an Act of God,
or battery leakage, theft, blown fuse, improper use of any electrical source, or
the product was used in combination or connection with other product,
attachments, supplies or consumables not manufactured or distributed by
FOXWELL.
2
3 The customer shall bear the cost of shipping the product to FOXWELL. And
FOXWELL shall bear the cost of shipping the product back to the customer
after the completion of service under this limited warranty.
4 FOXWELL does not warrant uninterrupted or error-free operation of the
product. If a problem develops during the limited warranty period, the
consumer shall take the following step-by-step procedure:
a) The customer shall return the product to the place of purchase for repair or
replacement processing, contact your local FOXWELL distributor or visit our
website www.foxwelltech.com to get further information.
b) The customer shall include a return address, daytime phone number
and/or fax number, complete description of the problem and original invoice
specifying date of purchase and serial number.
c) The customer will be billed for any parts or labor charges not covered by
this limited warranty.
d) FOXWELL will repair the Product under the limited warranty within 30 days
after receipt of the product. If FOXWELL cannot perform repairs covered
under this limited warranty within 30 days, or after a reasonable number of
attempts to repair the same defect, FOXWELL at its option, will provide a
replacement product or refund the purchase price of the product less a
reasonable amount for usage.
e) If the product is returned during the limited warranty period, but the
problem with the product is not covered under the terms and conditions of
this limited warranty, the customer will be notified and given an estimate of
the charges the customer must pay to have the product repaired, with all
shipping charges billed to the customer. If the estimate is refused, the
product will be returned freight collect. If the product is returned after the
expiration of the limited warranty period, FOXWELL’ normal service policies
shall apply and the customer will be responsible for all shipping charges.
5 ANY IMPLIED WARRANTY OF MERCHANTABILITY, OR FITNESS FOR
A PARTICULAR PURPOSE OR USE, SHALL BE LIMITED TO THE
DURATION OF THE FOREGOING LIMITED WRITTEN WARRANTY.
OTHERWISE, THE FOREGOING LIMITED WARRANTY IS THE
3
CONSUMER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED. FOXWELL SHALL NOT
BE LIABLE FOR SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF ANTICIPATED
BENEFITS OR PROFITS, LOSS OF SAVINGS OR REVENUE, LOSS OF
DATA, PUNITIVE DAMAGES, LOSS OF USE OF THE PRODUCT OR ANY
ASSOCIATED EQUIPMENT, COST OF CAPITAL, COST OF ANY
SUBSTITUTE EQUIPMENT OR FACILITIES, DOWNTIME, THE CLAIMS OF
ANY THIRD PARTIES, INCLUDING CUSTOMERS, AND INJURY TO
PROPERTY, RESULTING FROM THE PURC HASE OR USE OF THE
PRODUCT OR ARISING FROM BREACH OF THE WARRANTY, BREACH
OF CONTRACT, NEGLIGENCE, STRICT TORT, OR ANY OTHER LEGAL
OR EQUITABLE THEORY, EVEN IF FOXWELL KNEW OF THE
LIKELIHOOD OF SUCH DAMAGES. FOXWELL SHALL NOT BE LIABLE
FOR DELAY IN RENDERING SERVICE UNDER THE LIMITED
WARRANTY, OR LOSS OF USE DURING THE PERIOD THAT THE
PRODUCT IS BEING REPAIRED.
6. Some states do not allow limitation of how long an implied warranty lasts,
so the one-year warranty limitation may not apply to you (the Consumer).
Some states do not allow the exclusion or limitation of incidental and
consequential damages, so certain of the above limitations or exclusions may
not apply to you (the Consumer). This limited warranty gives the Consumer
specific legal rights and the Consumer may also have other rights which vary
from state to state.
4
Safety Information
For your own safety and the safety of others, and to prevent damage to the
equipment and vehicles, read this manual thoroughly before operating your
tool. The safety messages presented below and throughout this user’s
manual are reminders to the operator to exercise extreme care when using
this device. Always refer to and follow safety messages and test procedures
provided by vehicle manufacturer. Read, understand and follow all safety
messages and instructions in this manual.
Safety Message Conventions Used

We provide safety messages to help prevent personal injury and equipment
damage. Below are signal words we used to indicate the hazard level in a
condition.
Indicates an imminently hazardous situation which, if not avoided, will result

in death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided, could result

in death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided, may result in

moderate or minor injury to the operator or to bystanders.
Important Safety Instructions

And always use your tool as described in the user’s manual, and follow all
safety messages.
● Do not route the test cable in a manner that would interfere with driving
controls.
5
● Do not exceed voltage limits between inputs specified in this user’s manual.
● Always wear ANSI approved goggles to protect your eyes from propelled
objects as well as hot or caustic liquids.
● Fuel, oil vapors, hot steam, hot toxic exhaust gases, acid, refrigerant and
other debris produced by a malfunction engine can cause serious injury or
death. Do not use the tool in areas where explosive vapor may collect, such
as in below-ground pits, confined areas, or areas that are less than 18 inches
(45 cm) above the floor.
● Do not smoke, strike a match, or cause a spark near the vehicle while
testing and keep all sparks, heated items and open flames away from the
battery and fuel / fuel vapors as they are highly flammable.
● Keep a dry chemical fire extinguisher suitable for gasoline, chemical and
electrical fires in work area.
● Always be aware of rotating parts that move at high speed when an engine
is running and keep a safe distance from these parts as well as other
potentially moving objects to avoid serious injury.
● Do not touch engine components that get very hot when an engine is
running to avoid severe burns.
● Block drive wheels before testing with engine running. Put the transmission
in park (for automatic transmission) or neutral (for manual transmission). And
never leave a running engine unattended.
● Do not wear jewelry or loose fitting clothing when working on engine.
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Table of Contents
ONE-YEAR LIMITED WARRANTY...................................................................................................................2
SAFETY INFORMATION.................................................................................................................................... 5
SAFETY MESSAGE CONVENTIONS USED.......................................................................................................... 5

IMPORTANT SAFETY INSTRUCTIONS.................................................................................................................. 5
1 USING THIS MANUAL.................................................................................................................................. 10
1.1 BOLD TEXT................................................................................................................................................ 10

1.2 SYMBOLS AND ICONS................................................................................................................................ 10
1.2.1 Solid Spot.........................................................................................................................................10
1.2.2 Arrow Icon........................................................................................................................................10
1.2.3 Note and Important Message....................................................................................................... 10
2 INTRODUCTION............................................................................................................................................. 11
2.1 SCANNER DESCRIPTIONS..........................................................................................................................12

2.2 VCI DESCRIPTIONS................................................................................................................................... 14
2.3 ACCESSORIES............................................................................................................................................15
2.4 TECHNICAL SPECIFICATIONS.....................................................................................................................17
3 GETTING STARTED...................................................................................................................................... 18
3.1 POWERING UP THE SCANNER...................................................................................................................18

3.1.1 Internal Battery Pack......................................................................................................................18
3.1.2 19V AC/DC Power Supply.............................................................................................................18
3.2 SHUTTING DOWN THE SCANNER..............................................................................................................18
3.3 SCREEN LAYOUT OF HOME SCREEN....................................................................................................... 19
3.3.1 Title Bar............................................................................................................................................ 19
3.3.2 Application Buttons.........................................................................................................................20
3.3.3 Windows Toolbar............................................................................................................................ 21
4 DIAGNOSTIC OPERATIONS....................................................................................................................... 21
4.1 ESTABLISHING VEHICLE COMMUNICATION...............................................................................................21

4.1.2 VCI Connection............................................................................................................................... 23
4.1.2.1 Bluetooth Communication..........................................................................................................23
4.1.2.1 USB Communication...................................................................................................................26
4.2 SCREEN LAYOUT OF DIAGNOSTIC SCREENS........................................................................................... 26
4.2.1 Title Bar............................................................................................................................................ 27
4.2.2 Main Body........................................................................................................................................ 27
4.2.3 Diagnostic Function Buttons......................................................................................................... 27
4.2.4 Windows Tool Bar...........................................................................................................................27
4.3 VEHICLE IDENTIFICATION.......................................................................................................................... 27
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4.3.1 VIN Scan Hotkey.............................................................................................................................28
4.3.2 Automatic VIN Aquisition............................................................................................................... 28
4.3.3 Manual VIN Entry............................................................................................................................31
4.3.4 Manual Vehicle Selection.............................................................................................................. 31
4.4 SYSTEM SELECTION.................................................................................................................................. 32
4.4.1 Auto Scan.........................................................................................................................................32
4.4.2 Control Unit......................................................................................................................................34
4.5 DIAGNOSTIC OPERATIONS........................................................................................................................ 35
4.5.1 ECU Information............................................................................................................................. 36
4.5.2 Read Codes.....................................................................................................................................37
4.5.3 Freeze Frame Data........................................................................................................................ 38
4.5.4 Erase Codes....................................................................................................................................38
4.5.5 Live Data.......................................................................................................................................... 40
4.5.5.1 All Data..........................................................................................................................................40
4.5.5.2 Custom Data List......................................................................................................................... 43
4.5.5.3 Study And Comparison Mode of Live Data.............................................................................44
5 BI-DIRECTIONAL TEST OPERATIONS.................................................................................................... 45
5.1 ACTIVE TESTS........................................................................................................................................... 45

5.2 ADAPTATION.............................................................................................................................................. 47
5.3 CODING AND PROGRAMMING....................................................................................................................48
6 SERVICE AND MAINTENANCE OPERATIONS...................................................................................... 48
6.1 OIL LIGHT RESET...................................................................................................................................... 49

6.1.1 Oil Reset With One Button............................................................................................................ 49
6.1.2 Manual Reset.................................................................................................................................. 50
6.1.3 Auto Reset....................................................................................................................................... 51
6.2 ELECTRONIC PARKING BRAKE (EPB) SERVICE...................................................................................... 52
6.3 TIRE PRESSURE MONITORING SYSTEM (TPMS) PROGRAMMING..........................................................53
6.4 ABS/AIRBAG SERVICES............................................................................................................................53
6.5 STEERING ANGLE SENSOR (SAS) CALIBRATION.................................................................................... 54
6.6 DIESEL PARTICULATE FILTER (DPF) REGENERATION............................................................................ 54
6.7 CVT........................................................................................................................................................... 54
6.8 GEAR LEARNING........................................................................................................................................54
6.9 ODOMETER............................................................................................................................................ 55
6.10 INJECTOR CODING............................................................................................................................ 55
6.11 THROTTLE BODY ALIGNMENT (TBA/TPS)............................................................................................. 55
7 DATA MANAGEMENT OPERATIONS.......................................................................................................55
7.1 BROWSE PICTURE..................................................................................................................................... 56

7.1.1 How to Take a Screenshot............................................................................................................56
7.1.2 Review Screenshot.........................................................................................................................56
7.2 PLAYBACK DATA........................................................................................................................................57
7.3 DATA LOGGING & STORED DATA MANAGEMENT.................................................................................... 58
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8 CLIENT MANAGEMENT............................................................................................................................... 60
9 PRINT OPERATIONS.................................................................................................................................... 61
10 REMOTE CONTROL....................................................................................................................................63
11 SETTING........................................................................................................................................................ 64
11.1 LANGUAGE............................................................................................................................................... 64
11.2 CHANGE DISPLAY MODE........................................................................................................................ 65
11.3 CHANGE UNITS........................................................................................................................................65
11.4 USER INFORMATION................................................................................................................................ 65
11.5 RESET SETTING...................................................................................................................................... 65
12 ABOUT........................................................................................................................................................... 66
13 OPTIONAL FACILITY..................................................................................................................................66
13.1 4G WIRELESS NETWORK....................................................................................................................... 66

13.2 FINGERPRINT RECOGNITION...................................................................................................................67
13.3 GPS LOCATION.......................................................................................................................................69
14 REGISTRATION AND UPDATE................................................................................................................ 70
14.1 CREATE A FOXWELL ID.......................................................................................................................... 70

14.1.1 Register with Built-in Update Client FoxScanner.................................................................... 70
14.1.2 Register through Website............................................................................................................72
14.2 REGISTER YOUR SCANNER.................................................................................................................... 77
14.2.1 Register Through Website.......................................................................................................... 77
14.2.2 Register With Built-in Update Client FoxScanner................................................................... 78
14.3 UPDATE THE SCANNER...........................................................................................................................79
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1 Using This Manual
We provide tool usage instructions in this manual. Below are the conventions
we used in the manual.
1.1 Bold Text

Bold text is used to highlight selectable items such as buttons and menu
options.
Example:
Press the ENTER button to select.
1.2 Symbols and Icons

1.2.1 Solid Spot
Operation tips and lists that apply to specific tool are introduced by a solid
spot ●.
Example:
When System Setup is selected, a menu that lists all available options
displays. Menu options include:
● Languages
● Display Mode
● Unit
● User Information
● Resetting
1.2.2 Arrow Icon
An arrow icon indicates a procedure.
Example:
To connect to wall plug:
1.Connect the 19V power adapter to scanner and plug it to the wall socket.
2.Press the power switch of the scan tool to power it on; meanwhile the
scanner tool starts charging automatically also.
1.2.3 Note and Important Message
Note
A NOTE provides helpful information such as additional explanations, tips,
and comments.
Example:
10
NOTE
Test results do not necessarily indicate a faulty component or system.
Important
IMPORTANT indicates a situation which, if not avoided, may result in
damage to the test equipment or vehicle.
Example:
IMPORTANT
Do not soak scanner as water might find its way into the scanner.
2 Introduction
GT90 Automotive Diagnostic Platform Generation IIl from Foxwell is IP65
rated and built to resist the impact and damage of even the toughest
workshop environment. With a 12.2 inch large capacitive LCD touch screen,
GT90 brings the technicians more broad vision and easier operation. And
equipped with INTEL QUAD-core processor and super-sensitive multi-touch
screen that responds to glove use and greasy fingers and genuine
WINDOWS 10 operating system, GT90 delivers faster and much more
reliable diagnosis for workshops and technicians. In addition, it provides
professional diagnosis on more than 67 American, Asian and European
vehicle makes and has access to a vast range of controllers (ABS, airbags,
instrument cluster, etc.), live sensor data, and system/component-level
bi-directional controls.
There are two main components:
•GT90 Tablet
•Vehicle Communication Interface (VCI)
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2.1 Scanner Descriptions
This section illustrates external features, ports and connectors of the
scanner.
3 4
Figure 2-1 Front View
1 12.2’’ LED IPS Capacitive Touch Screen - shows menus, test results and
operation tips.
2 VOL + / VOL- -Short press to adjust the volume.
3 Home Button - exits a screen and returns to the home screen of the tablet.
4 F1/F2 - shortcut button,F1 is used to enter the diagnostic software quickly.
F2 is used to screen shot.
Figure 2-2 Back View

1 Rear-Facing Camera - takes pictures of VIN number, faulty parts and
plates and shoots test videos.
2 Battery Compartment - installs lithium-polymer battery to provide power to
the scanner when disconnected from vehicle.
3 Fingerprint Recognition- avoids repetitive password entry and just need
you put your finger on the induction zone to enter the system within 5
seconds.
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Figure 2-3 Top View
1 USB Port- provides a USB connection for the VCI or other devices.
2 SIM Card Port--provides 3/4G network for the tablet.(optional function)
3 SD Card Port- provides storage space expansion via TF card
Figure 2-4 Left View
1 HDMI (high-definition multimedia interface) Port - outputs display of the

scanner for demonstration and training of the products.
2 Ethernet port- connects with the Internet.
3 DC Power Input Jack - connects to wall plug to provide power to the
scanner and to charge the scanner.
Figure 2-5 Right View
1 Headset Jack- provides a headset connection.

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2 /3/4 USB Port - provides a USB connection for the PC or laptop or other
devices.
5 Power Switch - turns on the scanner, goes to sleep mode or wake up the
scanner from sleep mode, press and hold for 3 seconds for emergency
shutdown.
NOTE
4G network, Fingerprint Recognition are optional facilities and not included in
the standard version.
IMPORTANT
Do not use solvents such as alcohol to clean display. Use a mild nonabrasive
detergent and a soft cotton cloth.
2.2 VCI Descriptions

The Vehicle Communication Interface is a device used to connect the
vehicle’s diagnostic connector (DLC) with the Display Tablet for vehicle
data transmission.
Figure 2-6 Front View of VCI

1 Error Light - turns to red when hardware failure occurs or no
communication
2 USB Light - turns to green when the VCI is properly connected and
communicating with GT90 tablet via USB cable.
3 Bluetooth Light -turns to green when the VCI is properly connected with
GT90 tablet via Bluetooth communication.
4 Power Light - turns to green when powered on
14
Figure 2-7 Top View of VCI
5 Vehicle Data Connector-provides connection between vehicle and the

and VCI through the 16 pin diagnostic cable.
Figure 2-8 Bottom View of VCI
6 USB Port-provides connection between VCI and GT90 through a USB

cable.
2.3 Accessories
This section lists the accessories that go with the scanner. If you find any of
the following items missing from your package, contact your local dealer for
assistance.
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Item Item
Main Unit VCI
DB15 Data Cable USB Cable for VCI
AC/DC External AC/DC External

Power Adapter Power Cord
Audi 4 Pin Adapter Mercedes Benz

38 Pin Adapter
Clip Cable Cigarette Lighter
Toyota 22 Pin Adapter Fiat 3 Pin Adapter
GM/Daewoo 12 PSA 2 Pin Adapter

Pin Adapter
Kia 20 Pin Adapter Honda 3 Pin Adapter
Nissan 14 Pin Adapter Mitsubishi 12+16

Pin Adapter
BMW 20 Pin Adapter Toyota 17 Pin Adapter
Mazda 17 Pin Adapter OBDII Adapter
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Table 2-1 Accessories
2.4 Technical Specifications
Item Description
Touch Screen 12.2’’ diagnonal color LCD screen

Operation
WINDOWS 10
System
Processor Intel® Celeron® Processor N3060, 2M Cache, up to 2.48 GHz
Memory 2GB DDR3L (1333MHz)
SSD Hard drive 64GB(optional 128G/256G)
System Type 32-bit operating Systems, x64-based processor
Display Backlit 1280*800 pixel 12.2’’LED capacitive touch screen

Built-in WIFI 802.11 b/g Wireless LAN
Communication
USB2.0 OTG/standard USB 2.0 HOST
interface
Bluetooth 4.0 (0-50 m)
Camera 5 megapixels rear-facing
Audio Input
Microphone and dual Speaker
/Output
Working
0 to 50℃
Temperature
Storage
-20 to 60℃
Temperature
Humidity 95% Non-Condensing
External Power 8-20 Volts powered by vehicle battery

8000 mAh, Lithium-polymer battery, chargeable via 19V AC/DC power
Built-in Battery
supply
ISO9141-2, ISO14230-2, ISO15765-4, K/L lines,Double K lines, Double
K Line, SAE-J1850 VPW, SAE-J1850PWM, CAN ISO 11898,
Protocols High-speed, Middle-speed, Low-speed and Single-wire CAN, KW81,
KW82, GM UART, UART Echo Byte Protocol, TP2.0, TP16, SAE J1939,
SAE J1708, Fault-Tolerant CAN.
Dimensions 320*260*25mm
Weight Net Weigh: 1.4KG
Table 2-2 Technical Specifications
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3 Getting Started
This section describes how to power on/down the scanner, provides brief
introductions of applications loaded on the scanner and display screen layout
of the scan tool.
3.1 Powering up the Scanner

Before using the GT90 applications (including updating the scanner), please
make sure to provide power to the scanner.
The unit operates on any of the following sources:
● Internal Battery Pack
● 19V AC/DC Power Supply
3.1.1 Internal Battery Pack
The tablet scanner can be powered with the internal rechargeable battery.
The fully charged battery is capable of providing power for 6.5 hours of
continuous operation.
For the first three times charging the battery, please make sure the charging
time should be 8-10 hours at least. After it, the battery can be fully charged in
about 4 hours. These make lithium battery achieved its best performance in
the future.
NOTE
Please turn off the tablet to save power when not use.
3.1.2 19V AC/DC Power Supply

The scan tool can also be powered from a wall socket using the AC/DC
power supply. The AC/DC power supply also powers the internal battery pack
charging.
To connect to wall plug:
1.Connect the 19V power adapter to scanner and plug it to the wall socket.
2.Press the power switch of the scan tool to power it on; meanwhile the
scanner tool starts charging automatically also.
3.2 Shutting Down the Scanner

All vehicle communication must be terminated before shutting down the
scanner. Forcing a shut down while communicating may lead to ECM
problems on some vehicles. Exit the Diagnostic application before powering
down.
To shut down the scanner:
18
1.Swipe the rightmost side of the display and you will see the Settings icon of
the Windows system.
2.Press the Settings icon and you will see the Power switch.
3.Press the Power switch and select the shut down option to power the
scanner off.
NOTE
In case of emergency, press and hold the Power button of the scanner for 5
seconds to force shutdown.
3.3 Screen Layout of Home Screen

When the scan tool boots up, press the Desktop tab from the Home screen of
the tablet. Then press the GT90 desktop icon twice to launch the diagnostic
application.

Figure 3-1Sample Home Screen

1. Title Bar
2. Application Buttons
3.3.1 Title Bar

Operation of the buttons located on the title bar are described in the table
below:
19
Name Button Description
Time Displays current time
Records the communication data between

the scan tool and the vehicle under test to
Data Logging help with troubleshooting of diagnostic
failures. The logs will be saved to the
scanner and sent to our server via internet.
Camera Captures the screens of errors or faults.
Indicates the communication status between

the VCI (Vehicle Communication Interface)
VCI and the GT90 tablet. Green icon indicates
Communication the communication with the VCI has
Status Indicator connected successfully, while a white icon
indicates the communication has not built
yet.
Exits the Diagnostic application or exits a

Exit
function.
Touching this button opens a selection Menu;

tap Automatic VIN acquisition for auto VIN
VIN Scan
detection; tap Manually Input VIN to enter
VIN manually
Table 3-1Title Bar
3.3.2 Application Buttons
This section briefly introduces the applications that are preloaded into the
scanner:
● Diagnostic – leads to test screens for diagnostic trouble code
information, live datastream,ECU information, active tests, coding and
other functions.
● Oscilloscope – leads to oscilloscope OS100 software to perform
electrical and electronic circuit tests.
● Videoscope – leads to videoscope software connecting GT90 to
videoscope with an Imager head cable for close vehicle inspection.
● Data Management – leads to screens for saved screenshots and
pictures and playing back recorded live datastream，as well as stored
logging data.
● Update – leads to screens for registration and updating of the scanner
and managing your scanner serial numbers and sending us feedbacks
about the scanner.
20
● Setting – leads to screens for adjusting default settings to meet your own
preference and view information about the scanner.
● About – leads to screen of product information such as serial number
and password, which is required for product registration.
● Customer Management – leads to screens for logging and managing
the client information of the workshop.
● Remote Control– leads to the application TeamViewer for remote
control when you need any support from Foxwell support team.
● Technical Data – stores some guided operation information etc.
Figure 3-2 Sample Application Screen

3.3.3 Windows Toolbar
This is the standard Windows 10 toolbar. GT90 is a fully functional personal
computer based on the Windows 10 operating system.
NOTE
In case of the display mode of GT90 application is set to full screen display,
the Windows toolbar will not be displayed.
4 Diagnostic Operations
This section illustrates how to use the scanner to read and clear diagnostic
trouble codes, view “live” data readings and ECU information on controllers
installed, preform special functions such as actuation and coding, and
perform vehicle services and maintenances on 145 vehicle brands.
4.1 Establishing Vehicle Communication

In order to establish proper vehicle communication to GT90 Tablet, you need
to perform the following steps:
1. Connect the VCI device to the vehicle’s DLC for both communication and
power source.
21
Figure 4-1 Sample VCI with DLC Connection
2. Connect the VCI device to the GT90 Tablet via Bluetooth or USB
Connection.
Please refer to Chapter 4.1.2.1 about the details of how to connect via
Bluetooth.
Figure 4-2 Sample Bluetooth Connection

Please refer to Chapter 4.1.2.2 about the details of how to connect via
USB cable.
22
Figure 4-3 Sample USB Connection
3. Check the VCI Communication Status Indicator button at the title bar,if the
button turn to green, the GT90 is ready to start vehicle diagnosis.
Figure 4-4 Sample Connection Status Indicator

4.1.2 VCI Connection
The VCI(Vehicle Communication Interface) supports two communication
methods with the GT90 tablet:
● Bluetooth Communication
● USB Communication.
4.1.2.1 Bluetooth Communication
Bluetooth Communication is recommended as the first choice of
communication between the GT90 Tablet and the VCI device. The working
range for Bluetooth communication is about 0-50m, so you can perform
diagnosis freely around the workshop with greater convenience.
23
To use Bluetooth communication, the procedures as below:
1. Power up the Display Tablet.
2. Slide the right side of screen to the left, then a menu will show.(as Figure
4-5).Then click the Bluetooth button and the VCI will automatically connect
with the GT90 Tablet.
Figure 4-5 Sample Bluetooth Icon Screen

3.Go to the diagnostic menu to check the USB Connection Status. Indicator
button at the title bar. If turns to green, it means it’s ready to start diagnosis.
Figure 4-6 Sample Communication Screen

NOTE
Please wait for about 3s before USB Connection Status turning to
green.Once exit the Diagnostic Software, the bluetooth will disconnect
24
automatically and you need to wait about 15s to let the device reconnect to
the bluetooth.
4.If VCI Communication Status Indicator does not turn to green, please
turn on Bluetooth in “ Settings ” . The unit will search for Bluetooth
devices automatically, then select the right VCI (Bluetooth Name listed in
About page as Figure4-7) to pair. Once the paring screen showing
Connected (as Figure4-8), it means GT90 has connected with the VCI
successfully and the VCI Communication Status Indicator turns to green.
Figure 4-7 Sample Bluetooth Name Screen
Figure 4-8 Sample Bluetooth Pairing Screen
NOTE
If the VCI Communication Status Indicator button light isn’t green, it indicates
that the signal strength of the transmitter is too weak to be detected. In this
25
case, try to get closer to the device, or check the connection of VCI device,
and remove all possible objects that cause signal interference.
4.1.2.1 USB Communication
The USB cable connection is a simple and quick way to establish
communication between the Display Tablet and the VCI. After properly
connecting the USB cable between the tablet and the VCI device, the VCI
Communication Status Indicator button will turn to green, indicating the
connection between the GT90 tablet and the VCI device is successful.
Figure 4-9 Sample Bluetooth Communication Screen
4.2 Screen Layout of Diagnostic Screens

The diagnostics screens typically include four sections.
26

Figure 4-10 Title Bar
1. Title
2. Main Body
3. Diagnostic Function Buttons
4. Windows Tool Bar
4.2.1 Title Bar
Refer to 3.3.1 Title Bar for details.
4.2.2 Main Body
Screens of the Main Body may vary depending on different operations. Main
Body displays menus options, test results, messages, instructions and other
diagnostic information.
4.2.3 Diagnostic Function Buttons
Diagnostic Function Buttons are used to execute commands and operations.
Buttons displayed in each screen may vary depending on different
operations.
4.2.4 Windows Tool Bar
Refer to 3.3.3 Windows Tool Bar for details.
4.3 Vehicle Identification

The vehicle identification information presented is provided by the ECM of
the vehicle being tested. Therefore, certain attributes of the test vehicle must
be entered into the scan tool to ensure the data displays correctly. The
vehicle identification sequence is menu driven, you simply follow the screen
prompts and make a series of choices. Each selection you make advances
you to the next screen. A Back button in the upper left corner of the screen
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returns to the previous screen. Exact procedures may vary somewhat by
vehicle.
It typically identifies a vehicle by any of the following means:
● VIN Scan Hotkey
● Automatic VIN acquisition
● Manual VIN entry
● Manual vehicle selection
NOTE
Not all identification options listed above are applicable to all vehicles.
Available options may vary by vehicle manufacturer.
4.3.1 VIN Scan Hotkey
VIN Scan Hotkey button on the title bar is a shortcut for Automatic
VIN Acquisition and Manual VIN input, which features the latest VIN-based
Auto VIN Scan function to identify vehicles in just one touch and allows the
technician to quickly detect vehicles and scan all systems. For some vehicles
that do not support Auto VIN Scan function, choose Manually input VIN to let
GT90 to scan your vehicle.
Figure 4-11 Sample VIN Scan Hotkey

4.3.2 Automatic VIN Acquisition
Automatic VIN Acquisition allows to identify a vehicle by automatically
requesting the vehicle identification number (VIN).
To identify a vehicle automatic VIN acquisition:
1.Select Diagnostic from the Home screen of the GT90 application.
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Figure 4-12 Sample Home Screen
2.A screen with vehicle manufacturers displays. Select the area where the
vehicle manufacturer is from. A menu of all vehicle manufacturers from this
area displays. Or tap the Search Vehicle box to input the vehicle brand to
search.
Figure 4-13 Sample Vehicle Selection Screen

3.Select the manufacturer of the test vehicle from the list, and the following
screen displays.
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4.Press Read button to start reading the Vehicle Specification or VIN Code
automatically.

5.After the scan tool builds connection to the vehicle, the VIN number
displays. If the Vehicle Specification or VIN code is correct, press the OK to
continue. If it is incorrect, you are required to enter the correct VIN number
manually.
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Figure 4-16 Sample VIN Reading Screen
4.3.3 Manual VIN Entry
Manual VIN Entry identifies a vehicle by manually inputting a 17-digit VIN
code.
To identify a vehicle by manual VIN entry:
1.Refer to Step 1-3 of 4.3.2 Automatic VIN Acquisition.
2.Press Keyboard button to input a valid VIN code and press OK to continue.
The scan tool starts to identify the vehicle.
Figure 4-17 Sample Manual VIN Entry with Keyboard

4.3.4 Manual Vehicle Selection
Manual Vehicle Selection identifies a vehicle by making several selections
according to certain VIN characters, such as model year, and engine type.
To identify a vehicle by manual vehicle selection:
1.Refer to Step 1-3 of 4.3.2 Automatic VIN Acquisition.
2.On each screen that appears, select the correct option and then press the
OK button. Do this until the complete vehicle information is entered and the
menu of controller selection displays.
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Figure 4-18 Sample Manual Vehicle Selection Screen
4.4 System Selection

When you have completed the identification of vehicle, a menu for selecting
system to test displays. Menu options typically include:
● Auto Scan
● Control Unit
4.4.1 Auto Scan
Auto Scan performs an automatic system test to determine which control
modules are installed on the vehicle and obtain diagnostic trouble codes
(DTCs) overview. Depending on the number of control modules, it may take a
few minutes to complete the test.
To perform an automatic system scan:
1.Press Auto Scan option to start.
Figure 4-19 Sample Select System Scan Screen
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2.To pause the scan, press the Pause button on the screen.
Figure 4-20 Sample Auto System Scan Screen

3.At the end of successful automatic controller scan, a menu with a list of
installed controllers together with their DTC overview displays.
Figure 4-21 Sample Auto Scan Complete screen

4.If there is diagnostic trouble code(s) detected in a control unit, press the
Report button on the screen to view details of code information, and press
Quick Erase button to clear them.
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Figure 4-22 Sample Status Report screen
5.When running auto scanning, you can click Pause and select the system
you would like to test. When the scanner has established connection with
the vehicle, the Function Menu displays.
Figure 4-23 Sample Function Menu screen

4.4.2 Control Unit
Control Unit screen displays all controllers available of the vehicle
manufacturer. The controllers listed on the menu do not mean that they are
installed on the vehicle. It is useful for technicians who are familiar with the
vehicle specifications.
To select a system for testing:
1.Press Control Unit from the menu and a controller menu displays.
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Figure 4-25 Sample Control Unit Menu Screen
2.Select the system you would like to test. When the scanner has established
connection with the vehicle, the Function Menu displays.
Figure 4-26 Sample Common menu screen
4.5 Diagnostic Operations

After a system is selected and the scanner establishes communication with
the vehicle, the Function Menu displays. Generally the menu options are:
● ECU Information
● Read Codes
● Freeze Frame Data
● Erase Codes
● Live Data
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NOTE
Not all function options listed above are applicable to all vehicles. Available
options may vary by the year, model, and make of the test vehicle. A “The
selected mode is not supported!” message displays if the option is not
applicable to the vehicle under test.
4.5.1 ECU Information
ECU Information screen displays the identification data of the control module
under test, such as the control module identification string and the control
module coding.
To read ECU information:
1.Press ECU Information from Select Diagnostic Function menu.
Figure 4-27 Sample Function Menu Screen

2. A screen with detailed information of the selected control module displays.
Figure 4-28 Sample ECU Information Screen

3.Press function key Save to store ECU information, and press Print to print
the information. Or use the ESC button to exit.
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4.5.2 Read Codes
Read Codes menu lets you read trouble codes found in the control unit.
Typical menu options include:
● Present/Permanent/Current Codes
● Pending Codes
● History Codes
● Code History
● Self Diagnostic
Present/Permanent/Current codes stored in a control module are used to
help identify the cause of a trouble or troubles with a vehicle. These codes
have occurred a specific number of times and indicate a problem that
requires repair.
Pending codes are also referred to as maturing codes that indicate
intermittent faults. If the fault does not occur within a certain number of drive
cycles (depending on vehicle), the code clears from memory. If a fault occurs
a specific number of times, the code matures into a DTC and the MIL
illuminates or blinks.
History codes are also referred to as past codes that indicate intermittent
DTCs that are not currently active. Code history is number of engine starts
since the DTC(s) were first detected (to see if they are current or
intermittent).
Self diagnostic lets you manually activate system tests that check for DTCs.
Usually it includes a KOEO (Key-on, engine-off) test and a KOER (key-on,
engine-running) test.
To read codes from a vehicle:
1.Press Read Codes from Select Diagnostic Function menu. A code list
including code number and its description displays.
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Figure 4-29 Sample Function menu screen
2.Slide up and down to view additional information when necessary.
3.Press Save to store DTC information, and press Print to print the code
information. Or use the ESC button to exit.
4.5.3 Freeze Frame Data
Freeze Frame Data menu displays freeze frame data, a snapshot of critical
vehicle operating conditions automatically recorded by the on-board
computer at the time of the DTC set. It is a good function to help determine
what caused the fault.
To view freeze frame data:
1.Select Freeze Frame Data from Select Diagnostic Function menu. Details
of freeze frame data displays.
Figure 4-30 Sample function menu screen

2.Slide the screen up and down or use the PAGE UP and PAGE DOWN
button to view additional information when necessary.
3.Press function key Save to store freeze frame information, and press Print
to print the freeze frame data. Or use the ESC button to exit.
4.5.4 Erase Codes
Erase Codes menu lets you to clear all current and stored DTCs from a
selected control module. Also it erases all temporary ECU information,
including freeze frame. So make sure that the selected system are
completely checked and serviced by technicians and no vital information will
be lost before clearing codes.
NOTE
● To clear codes, make sure that the ignition key is switched to ON with the
engine off.
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● Erase Codes does not fix the problem that caused the fault! DTCs should
only be erased after correcting the condition(s) that caused them.
To clear codes:
1.Press Erase Codes from Select Diagnostic Function menu.
Figure 4-31 Sample Function Menu Screen

2.Follow the on-screen instructions and answer questions about the vehicle
being tested to complete the procedure.
Figure 4-32 Sample Erase Codes Screen

3.Check the codes again. If any codes remain, repeat the Erase Codes
steps.
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4.5.5 Live Data
Live Data menu lets you view real time PID data in text, plot and gauge
formats, learn good sensor data and compare them with faulty data, and
record live data from a selected vehicle electronic control module.
Menu options typically include:
● All Data
● Custom List
4.5.5.1 All Data
All Data menu lets you view all live PID data from a selected control module.
GT90 allows you to view live data information in 6 different types of display
modes.
● Text Mode - this is the default mode which displays the parameters in
texts.
● Graph Mode - displays the parameters in waveform graphs, giving you
the ‘real picture’ of what’s going on in the vehicle. You can view up to 4
parameter graphs simultaneously and easily find and zoom in on a
particular string of data.
● Merged Graph Mode - merges multiple PID plots into one coordinate, so
you can easily see how they affect each other, providing you with the
most comprehensive and functional look at live data possible.
● Gauge Mode - displays the parameters in the form of an analog meter.
● Study Mode - gives you the ability to learn good live sensor data values
during idle, KEKO, acceleration, deceleration, part load and heavy load
on each vehicle comes into your shop and records them for future
reference.
● Comparison Mode - If that vehicle comes in is with a problem, you can
easily compare the faulty sensor and parameter readings to the good
readings, and you will be alarmed when a faulty sensor reading is
detected.
NOTE
● Study and Comparison modes are available for viewing of parameter
readings in text mode ONLY.
● In case no learned value is stored in the scan tool, the Comparison Mode
will not be available.
To view all live PID data:
1.Press Live Data from Select Diagnostic Function menu to display the live
data menu.
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Figure 4-33 Sample Live Data Selection Screen
2.Press All Data from the menu to display the data stream screen. All
readings will be displayed in text format by default.
Figure 4-34 Sample Complete List Screen

3.Swipe the screen up and down or use the PAGE UP and PAGE DOWN
button to view additional information when necessary.
Figure 4-35 Sample Live Data Screen

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4.To move a data line to the top of Data List screen, just tap the line to select
and then press the button To Top. To record live data to memory of the
scanner for offline review, just tab the button Record, and press Stop to
stop recording at any time. To print the data through computer, tap the
Print icon.
5.To view live PID in graph format, press the tab Graph, and 4 PID plots
display. To view another PID plot, tab the name of a plot and a list of
available PIDs display. Select one from the dropdown box and the plot
changes to the newly selected PID. To view the plots with more details, use
the Zoom in button; instead, use the Zoom out button.
Figure 4-36 Sample PID Graph Screen

6.To see how the PIDs affect each other, press the Graph Merge tab to
merge them into one coordinate for easy and intuitive diagnosis.
Figure 4-37 Sample Graph Merge Screen

7.To view parameters in the form of an analog meter, press the Guage tab.
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Figure 4-38 Sample PID Gauge Screen
4.5.5.2 Custom Data List
Custom Data List menu lets you to minimize the number of PIDs on the data
list and focus on any suspicious or symptom-specific data parameters.
To create a custom data list:
1.Press Custom List from the menu to display all available parameters from
the selected control module.

2.The custom data stream selection screen displays. Tap the lines you wish
to select.
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Figure 4-40 Sample Custom List Selection Screen
NOTE
To deselect an item, tap the line again. Alternatively, tap SELECT ALL or
CLEAR ALL to select or deselect all items at once.
3.Press the OK button to complete the selection, and all selected parameters
display.

4.5.5.3 Study And Comparison Mode of Live Data
GT90 is able to learn and record good live sensor data values, compares with
the faulty sensor and parameter readings to the good readings and warns the
technician of the faulty sensor data.
To learn and record good sensor value:
1.Connect GT90 to a good vehicle and turn ignition on to build
communication with the car.
2.Identify the car, select a system to test and then select Live Data as
described above.
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3.Press All Data to display all available parameters from the selected control
module. Press Study Mode, and a dropdown list of working conditions
display.
Figure 4-42 Sample Study Mode Screen
5 Bi-directional Test Operations

GT90 allows you to use the scan tool temporarily to activate or control a
vehicle system or component. With GT90, the check of electronic
components such as switches, sensors, relays, & actuators is made a simple
task. It allows you to recalibrate, adapt or configure certain components after
making repairs or replacement. It gives you the ability to ‘flash’ a control unit
with new program data. Provided that a module can be re-coded, GT90
allows for the coding and programming of a replacement control module or
changing previously stored incorrect coding as expensive factory tools do. In
addition, it lets you recode the transponder in a mechanical key or key fob.
When a key for a modern vehicle is replaced, the new unit will often turn the
mechanical switch but fail to initialize the system or start the vehicle. If this
occurs, it is typically because the transponder inside the key has not been
coded to that particular system.
5.1 Active Tests

Active Tests, also known as Actuator Tests, are bi-directional diagnostic tests
on vehicle systems and component. The tests let you to use the scanner
temporarily activate or control a vehicle system or component, and when you
exit the test, the system/component returns to normal operation.
Some tests display a command to the operator. For example, if “Press Brake
Pedal” displays, the operator has to press and hold the brake pedal and then
continue. The sequence, number, and type of tests are dictated by the control
module.
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On some systems, the actuator tests cannot be restarted until the ignition key
is switched off for some time. Alternatively, briefly start and run the engine,
shut down, turn the ignition to the run position, then re-initiate the actuator
tests.
IMPORTANT
The tests activate a component, but they do not check if the component is
working correctly. Make sure the components to be tested are in good
condition and correctly mounted.
NOTE
Available tests depend on the control module under test and the vehicle itself.
To start a test:
1.Press Active Test from the menu and a list of available options displays.
Figure 5-1 Sample Active Test Screen

2.Select an option to start the test and live data of the selected test displays.
Figure 5-2 Sample Active Test Screen

3.Follow on-screen instructions to make proper selections and operations to
complete the tests.
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4.To exit the test, tap the Back button or the Close button at the top right of
the screen.
● Before running any tests, always observe the safety instructions provided in
this manual and the warnings provided by the vehicle manufacturer. In
addition, follow any warnings and descriptions provided on the scanner
screens.
● Never run the tests while the vehicle is moving.
5.2 Adaptation
Adaptation menu let you change adaptation values from the control module
and allows you to alter certain values and/or settings in control modules that
support it.
You should refer to the Service Manual for your particular car before
attempting to use the Adaptation function.
To set an adaptation:
1.Select Adaptation from Function Menu and press the ENTER key.
Figure 5-3 Sample Adaptation Screen

2.Follow on-screen instructions to make proper selections and operations to
complete the tests.
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Figure 5-4 Sample Adaptation Setting Screen
3.To exit the test, tap the Close button at the top right of the screen.
5.3 Coding and Programming

GT90 allows for the coding and programming of a replacement control
module or changing previously stored incorrect coding.
Coding also known as Teach-in Program or Component Adaptation. It is the
process of selecting and activating one program for a specific vehicle from a
set of programs that the factory installed in the control module. This allows
one control module to be used for different models, countries, and emission
applications.
Programming is the process of taking a blank control module and then adding
the correct vehicle program to memory.
6 Service and Maintenance Operations

This section gives brief instructions of the most commonly required service
and maintenance operations. Typical service operation screens are a series
of menu driven executive commands. Follow on-screen instructions to
complete the operation.
Available service and maintenance options include:
● Oil Light Reset
● EPB Service
● TPMS Programming Service
● ABS/SRS Services
● SAS Calibration
● DPF Regeneration
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6.1 Oil Light Reset
Oil Light Reset menu allows you to reset the service lamps on the instrument
cluster. The Service Indicator System is designed to alert the driver when the
vehicle is due for a service.
Oil service reset methods are determined by the vehicle being tested.
Depending on the vehicle being tested, any of the following means displays:
● Oil Reset With One Button
● Manual Reset
● Auto Reset
6.1.1 Oil Reset With One Button
Oil Reset With One Button is applicable to GM models only. It offers quick
and simple oil service reset with the click of one button.
To do Oil Reset With One Button on a year 2010 Chevrolet passenger car
model:
1.Click Oil Life Reset from the Engine Control Module menu. An Information
screen displays. Press the function key OK to continue or Cancel key to
return to the Oil Reset menu.
Figure 6-1 Sample Oil Reset Menu Screen

2.Follow on-screen instruction and send a command to reset oil service. A
screen with “Success” message displays once the lamp has been reset.
Press any key to return.
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Figure 6-2 Sample Oil Reset With One Button Success Screen
6.1.2 Manual Reset
Almost all Asian vehicles and most American and European vehicles have
mechanical oil service indicator reset. The service tool does not have to
communicate with the vehicle being tested, but guides you to complete the
service manually by providing step-by-step on-screen instructions.
When Manual Reset is selected and the vehicle being tested identified, a
procedure opens on the screen. Click to read the entire procedure and
performing the necessary steps as directed by the on-screen instructions.
The exact order of the test operation steps may vary depending on the test
vehicle. Be sure to follow all on-screen instructions.
This manual reset procedure can be interrupted and aborted if the ignition
key position is changed.
To do oil reset manually:
1.Enter vehicle information by certain VIN characters, such as model, and
year to identify the vehicle being tested and press OK key to confirm.
Select Engine Control Module and follow the on-screen menu to select Oil
Life Reset.
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Figure 6-3 Sample Vehicle Identification Screens
2.When Oil Life Reset is selected, a procedure screen displays.
Figure 6-4 Sample Manual Reset Instructions Screen

3.Follow all on-screen instructions to perform the manual mechanical reset.
4.Press OK key to return.
6.1.3 Auto Reset
Auto Reset is a bi-directional communication procedure directed by the
service tool. The service tool displays guides for you through the process. A
number of instructions that require a response to continue display, including
an option to clear any stored codes once the interval has been reset. Follow
the on-screen instructions.
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6.2 Electronic Parking Brake (EPB) Service
EPB Service menu allows you to perform the service and maintenance of
brake systems, including deactivation and activation of the brake control
system, bleeding brake fluid, opening and closing brake pads, and setting
brakes after disc or pad replacement, on multiple brands of vehicles where
electronic brake systems are fitted.
Some tests display a command to the operator. For example, if “Pressing
Brake Pedal” displays, the operator has to press and hold the brake pedal
and then continue. Actual tests vary by vehicle manufacturer, year, make.
Typical special test options include:
● Deactivate/Activate SBC/EPB systems – allows to deactivate brakes
for further service or maintenance work on brake systems or activate
brakes when service or maintenance work on brake systems are
completed.
● Adaptation on Audi A8 – allows to set new pad thickness of rear brakes
calipers after changing brake discs & pads on Audi A8 models.
● Replace hydraulic brake systems fluid/bleed brake system on
Mercedes SBC vehicles – allows to change brake fluid/bleed brake
system.
● Perform service reset and service position on BMW EPB vehicles –
allows to do the CBS reset and CBS correction for front brake and rear
brake.
● Perform activation/service work on Volvo PBM vehicles – allows to
perform installation check, applying parking brake, releasing parking
brake, activating service mode and exiting service mode.
● Reset memory on Toyota EPB vehicles – allows to clear the learned
memory of the EPB ECU.
● Perform brake cable replacement and electric parking brake
replacement – allows to fit in or remove the brake cable safely, adjust
brake cable’s tension and calibrate the electric parking brake
replacement.
● Save and write clutch pedal programming on Renault EPB vehicles –
allows to save clutch pedal programming on Renault vehicles fitted with
52
manual gearbox. After this command is activated, the tool allows to "flash"
the electric parking brake unit with the saved clutch data.
● Perform control function and reset function on Opel EPB vehicles –
allows to apply/release park brake cable service, provide park brake cable
service replacement procedures and calibrate the parking brake systems
after brake service.
● Sensor calibration on Honda EPB vehicles – allows to program the
current output value of each sensor into the electric parking brake unit.
● Provides parking brake unjam procedure and perform longitudinal
accelerometer calibration on Land Rover EPB vehicles – allows to
drive the electronic park brake so it is unjammed in the releasing direction
and then drive it into mounting position or the latching position; also
allows to perform longitudinal accelerometer calibration.
● EPB systems must be deactivated before carrying out any

maintenance/service work on the brakes such as changing of pads, discs
and calipers.
● Use proper tools to avoid the risk of body injuries of mechanics and
technicians and damage to the brake system.
● Make sure the vehicle is properly blocked after deactivation of the
systems.
6.3 Tire Pressure Monitoring System (TPMS)
Programming
TPMS Service menu allows you to check the tire sensor IDs from the vehicle
ECU and to perform TPMS programming and reset after tires and/or TPM
sensors are replaced and/or tires are rotated.
6.4 ABS/Airbag Services

ABS/Airbag Services menu let you use the scanner temporarily to activate or
control anti-lock brake systems and air bags or components.
Typical test options include:
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● ABS Manual Control Tests–allows to manually control the actuators in
order to test ABS motors, solenoids, solenoid enable relays, EMBs, and
more.
● ABS Motor Test–allows to manually control the ABS pump motor.
● ABS Version Test–displays the name of the brake system and the ABS
controller version number, software ID, and sequence value.
● Actuator Tests–allows to manually control the actuators in order to test
AYC valves, inlet valves, outlet valves, pump motors, and TRACS valves.
● Autobleed Test, Automated Bleed, or Service Bleed - removes air from
the internal brake fluid chambers after servicing the brakes.
6.5 Steering Angle Sensor (SAS) Calibration

SAS Calibration menu let you perform calibration of the Steering Angle
Sensor, which permanently stores the current steering wheel position as
straight-ahead in the sensor EEPROM. On successful calibration of the
sensor, its fault memory is automatically cleared.
6.6 Diesel Particulate Filter (DPF) Regeneration

DPF Regeneration menu let you perform the DPF cleaning to clear the
blockage through continuous burning of the particulates captured in the DPF
filter. When a DPF regeneration cycle is completed, the DPF light
automatically goes off.
6.7 CVT
This function is used to reset the compensation code and initialize the ECT
after a solenoid valve or valve body assembly has been replaced.
6.8 Gear Learning

1.Crankshaft position sensor adaptive learning. The crankshaft position
sensor learns crankshaft tooth machining tolerance and save to the computer
to more accurately diagnose engine misfires. If tooth learning is not
performed for a car equipped with Delphi engine, the MIL turns on after the
engine is started. The diagnostic device detects the DTC P 1336 'tooth not
learned'. In this case, you must the diagnostic device to perform tooth
learning for the car. After tooth learning is successful, the MIL turns off.
2.After the engine ECU, crankshaft position sensor, or crankshaft flywheel is

replaced, or the DTC 'tooth not learned' is present, tooth learning must be
performed
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6.9 ODOMETER
This function allows you to revise the date of odometer and write the
original date into new odometer.
6.10 INJECTOR CODING

This function is to reset and match the date after injector is replaced.
6.11 Throttle Body Alignment (TBA/TPS)

It's very common to see a customer pull into the shop with a Volkswagen or
Audi that just will not idle correctly. One of the possible causes is that the
throttle position is not known. When the motion range is not known, the ECU
simply has no idea where to set the throttle. The ECU must know the full
range of motion of the throttle in order for it to properly control the engine.
Using the throttle position sensors in the throttle body, the ECU learns the full
open and full closed positions through various states (idle, part throttle, WOT)
known as a Throttle Body Alignment (TBA)
When one of the following conditions came up, a TBA is needed.
1. The vehicle's battery has been disconnected and re-connected.
2. The ECU has been removed and reinstalled.
3. The Throttle Body has been cleaned or removed and reinstalled.
4. The Accelerator Pedal has been removed and reinstalled.
7 Data Management Operations

Data Management menu let you review stored screenshots and playback
recorded live data.
Typical menu options include:
● Browse Picture
● Playback
● Stored Data Management
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Figure 7-1 Sample Data Management Screen
7.1 Browse Picture

Browse Picture option leads to screens for review of stored screenshots. In
case a failure of the GT90 applications occurs, please just take a screenshot
and send it to our team to help with the troubleshooting of system faults.
7.1.1 How to Take a Screenshot
To take a screenshot:
1.If need save the data quickly, just press the Camera button at the title bar
of the screen to take capture for later analysis.
2.Add a description of the screenshot, and press the OK button to save.
Figure 7-2 Sample Screenshot Screen

7.1.2 Review Screenshot
To review the screenshot:
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1.Press the Data Management icon from the Home screen of GT90
diagnostic application.
2.Press Browse Picture and all available pictures will be displayed as
slideshow automatically.
Figure 7-3 Sample Browse Picture Screen

3.To stop the slideshow playing, just press the Pause button. Use Next or
Previous button to review the pictures one by one.
4.To delete a picture, tap button Delete and answer Yes to delete. Or press
Delete All to delete all the pictures.
7.2 Playback Data

The Playback option leads to screens for review of recorded live data.
Playing back a recording is just like using the scan tool on a live vehicle. It let
you review live data in text, graph and graph merging format. Playback speed
and direction (forward or reverse) can also be controlled.
To review recorded live data:
1.Press the Data Management icon from the Home screen of GT90
diagnostic application.
2.Press Playback and all available records display.
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Figure 7-4 Sample Playback Screen
3.Tap a record once and press the OK button or tap the record twice to
review. All recorded parameters display in text format by default.
Figure 7-5 Sample Data Stream Playback Screen

4.To view parameter graphs, press the Graph tab. And to merge the graphs,
press the tab Graph Merging.
5.To move forward or reverse back of the playing, just drag the progress bar
forward or reverse. To stop the playing of live data, press the Pause button.
6.To exit playback, press the Back button.
7.To delete a record, tap a record to select and then press the Delete button.
Answer Yes to delete or answer No to quit.
7.3 Data Logging & Stored Data Management

Data Logging is a tool to record the communication data between the
scanner and the vehicle under test to help with troubleshooting of diagnostic
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failures. The logs will be saved to the tablet and sent to our server via
internet.The logging icon displays on the upper right side of the
diagnostic screen whenever the scanner builds communication with the
vehicle.
To use Data Logging, the procedures is as below:
1.Click the data logging icon to start record the communication data between
the tablet and the vehicle.
Figure 7-6 Sample Data Logging Screen

2.Please re-click the data logging icon when the data record is finished.
3.Fill in the information showing on the screen.
Figure 7-7 Sample Data Logging Information Screen

4.Click OK icon to upload the data to our server.
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Figure 7-8 Sample Data Upload Screen
5.If failed to upload the data due to without network, please select Stored
Data Management from Data Management and click the Upload button to
send them to our server again when the network available.
Figure 7-9 Sample Stored Data Management Screen
After uploading a piece of record successfully , please send an e-mail to

support@foxwelltech.com or submit a support ticket on our website with the
serial number of your GT90, the date the record is uploaded,
and a brief description of the problem you have.We will get back to you with
a solution.
8 Client Management
The Client Management allows every workshop to record and manage their
clients’ vehicle information. When the plate and VIN of a vehicle is recorded,
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GT90 will recognize the car automatically so technicians do not have to make
a lot of selections to identify the car. It makes it much easier for technicians to
determine the car configurations and helps them focus on servicing the car.
Figure 8-1 Sample Data Stream Playback Screen
9 Print Operations
The print functions of GT90 enables the technicians printing the data
and information conveniently for later analysis and diagnostic.
To print the data, the procedures as following:
1.Go to the data page, there is a print icon on the left bottom side.
Figure 9-1 Sample Print Icon Screen

2.2.Click Print icon and choose an available printer..
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Figure 9-2 Sample Printer Screen
3.If not connected, save the file on your desk and print it out later.
4.Besides, you can click Save icon and review the data on Playback of Data
Management.
Figure 9-3 Sample Save Screen
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Figure 9-4 Sample Playback Screen
10 Remote Control
Remote Control enables you to start TeamViewer for remote control when
you need any supports from Foxwell support team.
If you need Foxwell support team to remote control GT90, please do as
follow:
1.Click the Remote Control icon on the main menu of GT90 to start
TeamViewer.
Figure 10-1 Sample Remote Control Screen

2.Send your ID and password to us to let our team to take control your tablet.
63
11 Setting
This section illustrates how to program the scanner to meet your specific
needs.
When Setting application is selected, a menu with available service options
displays. Menu options typically include:
● Language
● Display Mode
● Unit
● User Information
● Reset Setting
Figure 11-1 Sample Setting Screen
11.1 Language
Select Language opens a screen that allows you to choose system language.
The scan tool is set to display English menus by default.
To configure system language:
1.Press the Setting icon from the Home screen of GT90 diagnostic
application and select Language. Then all available language options
display.
2.Select your local language.
NOTE
The language need our authorization except for default language -English. If
you need another language, please contact us for authorization.
64
11.2 Change Display Mode
Selecting Display Mode opens a screen that allows you to toggle the display
mode between full-screen view and display with Windows tool bar. The scan
tool is set to display with full-screen view by default.We suggest you set
Display Mode as Show taskbar.
To configure display mode:
application.
2.Press Display Mode and available modes display.
3.Select a display mode.
11.3 Change Units

Selecting Unit opens a dialog box that allows you to choose between British
customary or metric units of measure.
To change the unit setup:
application.
2.Press Unit and available unit system display.
3.Select a unit system.
11.4 User Information

Selecting User Information option opens a screen to input and manage your
workshop information. Your workshop information will be displayed on your
test reports that are presented to your customers.
To input your workshop information:
application.
2.Select User Information option.
3.Input your workshop name, phone and fax number and email address with
the keypad.
11.5 Reset Setting

Selecting Reset Setting option lets you to reset your scan tool to factory
defaults. This option will also clear the workshop information.
To reset your scan tool to factory defaults:
application.
2.Select Reset Setting option.
65
3.Press the Reset button. The scan tool reboots automatically and the reset
is completed.
12 About
Selecting About option opens a screen that show information about your
scan tool, such as serial number and register password which may be
required for product registration.
To view information of your scan tool:
1.Press the About icon from the Home screen of GT90 diagnostic
application.
2.A screen with detailed information of the scanner displays.
Figure 12-1 Sample Tool Information Screen

3.Press the Back button to exit.
13 Optional Facility
13.1 4G Wireless Network
The GT90 can support the mobile network connection to enable you access
internet outdoors.
The SIM card slot is in below picture(Mark No.2).
66
Figure 13-1 Sample Battery Screen.
NOTE
This function is only available for some countries. Please contact your
distributor for the details.
13.2 Fingerprint Recognition

GT90 has an optional fingerprint recognition function. It’s equipped with a
built-in fingerprint reader that you can use to scan and authenticate your
fingerprints for security purposes. Instead of entering a password, you can
simply swipe a finger on the fingerprint reader and log on to Windows.
To input your fingerprint, please follow the steps here below:
1.Go to Windows Setting page and choose Accounts.
Figure 13-2 Sample Windows Settings Screen
2.Choose Sign-in options and click Set Up in the Fingerprint section. If you
don’t have a PIN, you’ll need to create one to set up the fingerprint reader.
67
Figure 13-3 Sample Sign-in Screen
3.Click Get Started
Figure 13-4 Sample Get Started Screen

4. Enter your PIN.
68
Figure 13-5 Sample Enter PIN Screen
5.Scan your finger on the fingerprint reader.
Figure 13-6 Sample Scan Screen

6. Click Add Another if you want to repeat the process with another finger, or
close the program.
Figure 13-7 Sample Add Another Screen
13.3 GPS Location

With a global positioning system (GPS) satellite receiver, it enables you to
pinpoint your location down to the street level. Use location-based
application such as Google Maps to find your current location, get directions
to your destination, and find other location-based information.
69
14 Registration and Update
The scanner can be updated to keep you stay current with the latest
development of diagnosis. This section illustrates how to register and update
your scan tool. You can register both on Foxwell website or by the update
client Foxscanner.
To update your scanner, please follow the three steps here below:
1.Obtain a FOXWELL ID.
2. Register the product with the product serial number and product password.
3. Update the product by the update application FoxScanner.
To be able to use FoxScanner, PC or laptop must meet the following
minimum requirements:
● Operation System: Win98/NT, Win ME, Win2000, Win XP, VISTA and
Windows 7 and Windows 8.
● CPU: Intel PⅢ or better
● RAM: 64MB or better
● Hard Disk Space: 30MB or better
● Display: 800*600 pixel, 16 byte true color display or better
● Internet Explorer 4.0 or newer
NOTE
Before registration and updating, please make sure your network works
correctly.
14.1 Create a Foxwell ID

If you are new to FOXWELL, please register with FOXWELL and obtain a
FOXWELL ID first. There are two methods to register an ID.
● Register with the built-in update client Foxscanner on GT90
● Register through our website. Please click the URL below:
http://www.foxwelltech.com/register/step_two.html
14.1.1 Register with Built-in Update Client FoxScanner

You are allowed to register and create a Foxwell ID with the built-in update
client FoxScanner.
To register with FoxScanner:
1.Press the Update icon from the Home screen of GT90 diagnostic
application, and the update client starts up automatically.
70
Figure 14-1 Sample FoxScanner Main Screen
2.Click Register button, a Register window will pop up.
Figure 14-2 Sample Register Screen

3.Create a unique user ID and password, complete the following registration
form and click Register to confirm.
71
Figure14-3 Sample Register Screen
4.A Registration Done message will appear if you registered successfully,
and an email will be sent to your registered email address containing a link
with which you can activate the Foxwell ID. Please log in your email and
activate the account.
Figure 14-4 Sample Registration Done Screen

5.Click OK. It skips to the log in page automatically. You can input your
Foxwell ID and password to sign in.
Figure 14-5 Sample Log in Screen

14.1.2 Register through Website
To register through our website:
1.To create a Foxwell ID and register your scan tool
a. Visit our site www.foxwelltech.com and then select Support>Register.
72
Figure 14-6 Sample Support Screen

b. Click Register link at the top right of the website or at the lower side of
home page.

2.Create a unique user ID and password, complete the following registration
form and then click Submit to confirm. When your ID has been created, you
are allowed to view all programs associated with your tool, download
updates, edit your profile, submit feedback and join our community to share
your ideas and your stories about our products.
73
Figure 14-8 Sample Registration Form Screen
IMPORTANT
Please always remember your FOXWELL ID and Password as it’s important
for you to manager your product and updates.
3.A Submit OK message will appear if you registered successfully and an
email will be sent to your registered email address containing a link with
which you can activate the Foxwell ID. Please log in your email and activate
the account.
Figure 14-9 Sample Successful Registration Screen

IMPORTANT
Before activating and confirming your email address by clicking the activation
link in your email, your account will still be invalid and you are not be allowed
to sign in.
74
4.The registration page will be bypassed, skipping to the log in page. Just
input your FOXWELL ID/email address and Password to sign in.
Figure 14-10 Sample Sign in Screen

5.When log in successfully, the Member Center will show as below. This
platform enables you to review the registered products, register new
products, modify personal information or reset the password.
Figure 14-11 Sample Member Center Screen

6.If you forget your register ID or password, just click Sign in at the top right
of the website, then click Forgot your user ID and/or password? . You
are required to either input the serial number and register password or your
registered email address. Then our system will send a password reset link
to your registered email address.
75
Figure 14-12 Sample Password Retrieval Screen
7.Please log in your email and click the link to go to the following Reset
Password page. Input your new password and submit it. Now you are able
to log in with your ID and the new password. If you want to change the
password, please sign in with your user name and password, then select
My Profile/Reset Password.
Figure 14-13 Sample Password Retrieval Screen

NOTE
If the user name is different with the email you filled when registering, please
input the registered email to find your password back, but not user name.
76
Figure 14-14 Sample Different Email Address
14.2 Register Your Scanner

To register a scanner, you can either register on www.foxwelltech.com or by
the built-in update client FoxScanner. Before registering your scanner,
please make sure you have already created your Foxwell ID.
14.2.1 Register Through Website
1.Visit our website www.foxwelltech.com and click Sign in at the top right
corner of home page. Input your FOXWELL ID/registered email and
password to sign in.
Figure 14-15 Sample Log in Screen

2.When log in successfully, the Member Center will show as below.
77
Figure 14-16 Sample Member Center Screen
3.To register a product, please click My Products>New Registration. Select
the right part number, input serial number and password and click the
Submit button to complete product registration.
Figure 14-17 Sample New Product Registration Screen

NOTE
To check the serial number and password of GT90, please select About on
the GT90 main menu.
14.2.2 Register With Built-in Update Client FoxScanner
To register with FoxScanner:
application, and the update client starts up automatically. Log in with your
Foxwell ID/ registered email and password.
78
Figure 14-18 Sample Log In Screen
2.Please select Register Products to register it. Select the right part number
input serial number and password to complete product registration.
Figure 14-19 Sample New Product Registration Screen
14.3 Update the Scanner

NOTE
● Before updating, please make sure your network works correctly.
● Before updating, please make sure you have already created a Foxwell ID.
To update your scanner:
application, and the update client starts up automatically. Log in with your
Foxwell ID/ registered email and password.
79
Figure 14-20 Sample Sign in FoxScanner Screen
2.Click My Updates-> Available Updates and all updates applicable to your
scanner display.
Figure 14-21 Sample My Update Screen

3.Click the check box(s) in front of the software(s) you wish to update and
then click the Update button to download.
80
Figure 14-22 Sample Update Check Screen
4.When Update button is clicked, it begins to download. And you can check
the Current Status. If the Current Status shows Downloading, please do not
close the update application.
Figure 14-23 Sample Updating Screen

5.When all the items are updated, an “Update Done!” message displays and
the Available Update items will be blank.
81
Figure 14-24 Sample Update Completed Screen
6.Please click Software Management to review all the updated software.
Figure 14-25 Sample Software Management Screen

NOTE
If “Update Failed” dialog comes up, it indicates that the software updates
failed. Please check your network connection or SD card. If the problem still
exists, please contact support@foxwelltech.com or your local dealer for
assistance.
7.To uninstall a software or all software select them and click the Uninstall
button. And the uninstalled items can be found in the Updates screen.
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Figure 14-26 Sample Software Uninstallation Screen
8.Please click My Profile to view your personal information. To modify your
personal information, just type in the message box and click Submit. To
help us provide better service, please make sure that the telephone, email
and country are correctly entered.
Figure 14-27 Sample My Profile Screen

9.Should you have any questions regarding the product, please click Support
Tickets. Fill in all required information and click Submit to send us your
issue.
83
Figure 14-28 Sample Support Ticket Screen
84

Automotive Diagnostic System GT90 User's Manual v120180622

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Trademarks

FOXWELL is trademark of Shenzhen Foxwell Technology Co., Ltd.

Safety Message Conventions Used

Indicates an imminently hazardous situation which, if not avoided, will result

Indicates a potentially hazardous situation which, if not avoided, could result

Indicates a potentially hazardous situation which, if not avoided, may result in

Important Safety Instructions

ONE-YEAR LIMITED WARRANTY...................................................................................................................2

SAFETY MESSAGE CONVENTIONS USED.......................................................................................................... 5

1.1 BOLD TEXT................................................................................................................................................ 10

2.1 SCANNER DESCRIPTIONS..........................................................................................................................12

3.1 POWERING UP THE SCANNER...................................................................................................................18

4.1 ESTABLISHING VEHICLE COMMUNICATION...............................................................................................21

5.1 ACTIVE TESTS........................................................................................................................................... 45

6.1 OIL LIGHT RESET...................................................................................................................................... 49

7.1 BROWSE PICTURE..................................................................................................................................... 56

13.1 4G WIRELESS NETWORK....................................................................................................................... 66

14.1 CREATE A FOXWELL ID.......................................................................................................................... 70

1.1 Bold Text

1.2 Symbols and Icons

Figure 2-2 Back View

Figure 2-4 Left View

1 HDMI (high-definition multimedia interface) Port - outputs display of the

Figure 2-5 Right View

1 Headset Jack- provides a headset connection.

2.2 VCI Descriptions

Figure 2-6 Front View of VCI

5 Vehicle Data Connector-provides connection between vehicle and the

Figure 2-8 Bottom View of VCI

6 USB Port-provides connection between VCI and GT90 through a USB

Main Unit VCI

DB15 Data Cable USB Cable for VCI

AC/DC External AC/DC External

Audi 4 Pin Adapter Mercedes Benz

Clip Cable Cigarette Lighter

Toyota 22 Pin Adapter Fiat 3 Pin Adapter

GM/Daewoo 12 PSA 2 Pin Adapter

Kia 20 Pin Adapter Honda 3 Pin Adapter

Nissan 14 Pin Adapter Mitsubishi 12+16

BMW 20 Pin Adapter Toyota 17 Pin Adapter

Mazda 17 Pin Adapter OBDII Adapter

2.4 Technical Specifications

Touch Screen 12.2’’ diagnonal color LCD screen

Memory 2GB DDR3L (1333MHz)

SSD Hard drive 64GB(optional 128G/256G)

System Type 32-bit operating Systems, x64-based processor

Display Backlit 1280*800 pixel 12.2’’LED capacitive touch screen

Humidity 95% Non-Condensing

External Power 8-20 Volts powered by vehicle battery

Weight Net Weigh: 1.4KG

Table 2-2 Technical Specifications

3.1 Powering up the Scanner

3.1.2 19V AC/DC Power Supply

3.2 Shutting Down the Scanner

3.3 Screen Layout of Home Screen

Figure 3-1Sample Home Screen

3.3.1 Title Bar

Time Displays current time

Records the communication data between