Launch Tech GSPLUS User Manual
LAUNCH Gear Scan Plus User Manual
Copyright Information
Copyright © 2019 by LAUNCH TECH CO., LTD. All rights reserved. No part of
this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying and recording
or otherwise, without the prior written permission of LAUNCH. The information
contained herein is designed only for the use of this unit. LAUNCH is not
responsible for any use of this information as applied to other units.
Statement: LAUNCH owns the complete intellectual property rights for the software
used by this product. For any reverse engineering or cracking actions against the
software, LAUNCH will block the use of this product and reserve the right to pursue
their legal liabilies.
Trademark Information
LAUNCH is a registered trademark of LAUNCH TECH CO., LTD. (also called
LAUNCH for short) in China and other countries. All other LAUNCH trademarks,
service marks, domain names, logos, and company names referred to in this
manual are either trademarks, registered trademarks, service marks, domain
names, logos, company names of or are otherwise the property of LAUNCH or
its afliates. In countries where any of the LAUNCH trademarks, service marks,
domain names, logos and company names are not registered, LAUNCH claims
other rights associated with unregistered trademarks, service marks, domain
names, logos, and company names. Other products or company names referred
to in this manual may be trademarks of their respective owners. You may not use
any trademark, service mark, domain name, logo, or company name of LAUNCH
or any third party without permission from the owner of the applicable trademark,
service mark, domain name, logo, or company name. You may contact LAUNCH
by visiting the website at www.cnlaunch.com, or writing to LAUNCH TECH CO.,
LTD., Launch Industrial Park, North of Wuhe Avenue, Banxuegang, Bantian,
Longgang, Shenzhen, Guangdong, P.R.China, to request written permission to
use Materials on this manual for purposes or for all other questions relating to
this manual.
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LAUNCH Gear Scan Plus User Manual
General Notice
• Other product names used herein are for identification purposes only and
may be trademarks of their respective owners. LAUNCH disclaims any and all
rights in those marks.
• There is a possibility that this unit is inapplicable to some of the vehicle
models or systems listed in the diagnosis section due to different countries,
areas, and/or years. Do not hesitate to contact LAUNCH if you come across
such questions. We are to help you solve the problem as soon as possible.
Disclaimer
• To take full advantage of the unit, you should be familiar with the engine.
• All information, illustrations, and specications contained in this manual are
based on the latest information available at the time of publication. The right
is reserved to make change at any time without notice.
• Neither LAUNCH nor its afliates shall be liable to the purchaser of this unit
or third parties for damages, losses, costs or expenses incurred by purchaser
or third parties as a result of: accident, misuse, or abuse of this unit, or
unauthorized modifications, repairs, or alterations to this unit, or failure to
strictly comply with LAUNCH operating and maintenance instructions.
• LAUNCH shall not be liable for any damages or problems arising from the
use of any options or any consumable products other than those designated
as Original LAUNCH Products or LAUNCH Approved Products by LAUNCH.
Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or this tool, please read
this user’s manual rst carefully and observe the following safety precautions at
a minimum whenever working on a vehicle:
• Always perform automotive testing in a safe environment.
• Do not attempt to operate or observe the tool while driving a vehicle.
Operating or observing the tool will cause driver distraction and could cause a
fatal accident.
• Wear safety eye protection that meets ANSI standards.
• Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or
hot engine parts.
• Operate the vehicle in a well-ventilated work area: Exhaust gases are
poisonous.
• Put blocks in front of the drive wheels and never leave the vehicle unattended
while running tests.
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• Use extreme caution when working around the ignition coil, distributor cap,
ignition wires and spark plugs. These components create hazardous voltages
when the engine is running.
• Put the transmission in P (for A/T) or N (for M/T) and make sure the parking
brake is engaged.
• Keep a re extinguisher suitable for gasoline/chemical/ electrical res nearby.
• Don’t connect or disconnect any test equipment while the ignition is on or the
engine is running.
• Keep this tool dry, clean, free from oil/water or grease. Use a mild detergent
on a clean cloth to clean the outside of the tool, when necessary.
• Please use the DC 5V power adaptor to charge this tool. No responsibility
can be assumed for any damage or loss caused as a result of using power
adaptors other than the right one.
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LAUNCH Gear Scan Plus User Manual
Table of Contents
1. Introduction ..............................................................................................1
2. General Information ................................................................................2
2.1 On-Board Diagnostics (OBD) II ......................................................................2
2.2 Diagnostic Trouble Codes (DTCs) ..................................................................2
2.3 Location of the Data Link Connector (DLC)....................................................3
2.4 OBD II Readiness Monitors ............................................................................4
2.5 OBD II Monitor Readiness Status...................................................................5
2.6 OBD II Denitions ...........................................................................................5
3. Product Descriptions ..............................................................................7
3.1 Outline of Gear Scan Plus ..............................................................................7
3.2 Technical Specications .................................................................................8
3.3 Accessories Checklist ..................................................................................... 9
4. Initial Use................................................................................................10
4.1 Charging The Tool ........................................................................................10
4.2 Getting Started .............................................................................................10
5. Diagnose ................................................................................................13
5.1 Connection ...................................................................................................13
5.2 System Diagnosing.......................................................................................13
5.2.1 Smart Diagnosis (Auto-Detect) .............................................................13
5.2.2 Manual Diagnosis .................................................................................15
5.3 OBDII Diagnosis ...........................................................................................21
5.4 History ..........................................................................................................23
5.5 Resetting ......................................................................................................24
6. Update ....................................................................................................25
7. Data .........................................................................................................26
7.1 Diagnostic Report .........................................................................................26
7.2 Diagnostic Record ........................................................................................26
7.3 DTC Library ..................................................................................................27
7.4 DLC(Data Link Connector) Location.............................................................27
7.5 Feedback ......................................................................................................27
7.6 Firmware Fix .................................................................................................28
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7.7 User Manual .................................................................................................28
8. Settings ..................................................................................................29
8.1 Units of measurement ..................................................................................29
8.2 Automatic detection on connect....................................................................29
8.3 Display & Brightness ....................................................................................29
8.4 Sound ...........................................................................................................29
8.5 Network ........................................................................................................29
8.6 Date/Time .....................................................................................................29
8.7 Language......................................................................................................30
8.8 Email Setup ..................................................................................................30
8.9 Recovery ......................................................................................................30
8.10 Clean Up.....................................................................................................30
8.11 About ...........................................................................................................30
9. FAQ .........................................................................................................31
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1. Introduction
Gear Scan Plus is an evolutionary smart solution for passenger car diagnosis. It
inherits from LAUNCH’s advanced diagnosing technology and is characterized
by covering a wide range of vehicles, featuring powerful functions, and providing
precise test result.
Gear Scan Plus has the following functions and advantages:
• Smart(Auto-Detect) Diagnosis: Once the tool and the vehicle are properly
connected, the system starts auto-detect process. Once the whole process is
successfully nished, a diagnostic report will be automatically generated and
sent to your email box (if bound).
• Manual Diagnosis: If Auto-Detect failure occurs, manual diagnosis is also
available. Diagnosis functions include: Version Information, Read DTCs,
Clear DTCs and Read Data Stream (supports 3 display modes: Value, Graph
and Merged).
• OBDII Diagnosis: 10 modes of OBD II test are supported, including EVAP, O2
Sensor, I/M Readiness, MIL Status, VIN Info, and On-board monitors testing
etc.
• Reset: Frequently used maintenance and reset items including Oil lamp
reset, Electronic parking brake reset, Steering angle calibration, Battery
maintenance system reset, DPF regeneration, ABS bleeding, TPMS reset,
IMMO reset, Sunroof initialization, Throttle matching and Injector relearn can
be done.
• One-click Update: Let you update your diagnostic software and APK online.
• Diagnostic History: This function provides a quick access to the tested
vehicles and users can choose to view the test report or resume from the last
operation, without the necessity of starting from scratch.
• Diagnostic Feedback: Use this option to submit the vehicle issue to us for
analysis and troubleshooting.
• DTC Library: Allows you to retrieve the definition of the diagnostic trouble
code from the abundant DTC database.
• Displays battery real-time voltage once properly connected to the vehicle.
• Touch & Keypad input are supported.
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LAUNCH Gear Scan Plus User Manual
2. General Information
2.1 On-Board Diagnostics (OBD) II
The first generation of On-Board Diagnostics (OBD I) was developed by the
California Air Resources Board (ARB) and implemented in 1988 to monitor some
of the emission control components on vehicles. As technology evolved and the
desire to improve the On-Board Diagnostic system increased, a new generation
of On-Board Diagnostic system was developed. This second generation of OnBoard Diagnostic regulations is called “OBD II”.
The OBD II system is designed to monitor emission control systems and key
engine components by performing either continuous or periodic tests of specic
components and vehicle conditions. When a problem is detected, the OBD II
system turns on a warning lamp (MIL) on the vehicle instrument panel to alert
the driver typically by the phrase of “Check Engine” or “Service Engine Soon”.
The system will also store important information about the detected malfunction
so that a technician can accurately nd and x the problem. Here below follow
three pieces of such valuable information:
1) Whether the Malfunction Indicator Light (MIL) is commanded ‘on’ or ‘off’;
2) Which, if any, Diagnostic Trouble Codes (DTCs) are stored;
3) Readiness Monitor status.
2.2 Diagnostic Trouble Codes (DTCs)
OBD II Diagnostic Trouble Codes are codes that are stored by the on-board
computer diagnostic system in response to a problem found in the vehicle. These
codes identify a particular problem area and are intended to provide you with a
guide as to where a fault might be occurring within a vehicle. OBD II Diagnostic
Trouble Codes consist of a five-digit alphanumeric code. The first character,
a letter, identifies which control system sets the code. The second character,
a number, 0-3; other three characters, a hex character, 0-9 or A-F provide
additional information on where the DTC originated and the operating conditions
that caused it to set. Here below is an example to illustrate the structure of the
digits:
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Figure 2-1
2.3 Location of the Data Link Connector (DLC)
The DLC (Data Link Connector or Diagnostic Link Connector) is typically a 16-
pin connector where diagnostic code readers interface with the vehicle’s onboard computer. The DLC is usually located 12 inches from the center of the
instrument panel (dash), under or around the driver’s side for most vehicles. If
Data Link Connector is not located under dashboard, a label should be there
telling location. For some Asian and European vehicles, the DLC is located
behind the ashtray and the ashtray must be removed to access the connector. If
the DLC cannot be found, refer to the vehicle’s service manual for the location.
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Figure 2-2
2.4 OBD II Readiness Monitors
An important part of a vehicle’s OBD II system is the Readiness Monitors, which
are indicators used to find out if all of the emissions components have been
evaluated by the OBD II system. They are running periodic tests on specific
systems and components to ensure that they are performing within allowable
limits.
Currently, there are eleven OBD II Readiness Monitors (or I/M Monitors) dened
by the U.S. Environmental Protection Agency (EPA). Not all monitors are
supported in every vehicles and the exact number of monitors in any vehicle
depends on the motor vehicle manufacturer’s emissions control strategy.
Continuous Monitors -- Some of the vehicle components or systems are
continuously tested by the vehicle’s OBD II system, while others are tested
only under specific vehicle operating conditions. The continuously monitored
components listed below are always ready:
1. Misre
2. Fuel System
3. Comprehensive Components (CCM)
Once the vehicle is running, the OBD II system is continuously checking the
above components, monitoring key engine sensors, watching for engine misre,
and monitoring fuel demands.
Non-Continuous Monitors -- Unlike the continuous monitors, many emissions
and engine system components require the vehicle to be operated under
specic conditions before the monitor is ready. These monitors are termed non-
continuous monitors and are listed below:
1) EGR System
2) O2 Sensors
3) Catalyst
4) Evaporative System
5) O2 Sensor Heater
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6) Secondary air Injection
7) Heated Catalyst
8) A/C system
2.5 OBD II Monitor Readiness Status
OBD II systems must indicate whether or not the vehicle’s PCM’s monitor
system has completed testing on each component. Components that have been
tested will be reported as “Ready”, or “Complete”, meaning they have been
tested by the OBD II system. The purpose of recording readiness status is to
allow inspectors to determine if the vehicle’s OBD II system has tested all the
components and/or systems.
The Powertrain Control Module (PCM) sets a monitor to “Ready” or “Complete”
after an appropriate drive cycle has been performed. The drive cycle that
enables a monitor and sets readiness codes to “Ready” varies for each
individual monitor. Once a monitor is set as “Ready” or “Complete”, it will remain
in this state. A number of factors, including erasing of Diagnostic Trouble Codes
(DTCs) with a code reader or a disconnected battery, can result in Readiness
Monitors being set to “Not Ready”. Since the three continuous monitors are
constantly evaluating, they will be reported as “Ready” all of the time. If testing
of a particular supported non-continuous monitor has not been completed, the
monitor status will be reported as “Not Complete” or “Not Ready.”
In order for the OBD monitor system to become ready, the vehicle should be
driven under a variety of normal operating conditions. These operating conditions
may include a mix of highway driving and stop and go, city type driving, and at
least one overnight-off period. For specic information on getting your vehicle’s
OBD monitor system ready, please consult your vehicle owner’s manual.
2.6 OBD II Denitions
Powertrain Control Module (PCM) -- OBD II terminology for the on-board
computer that controls engine and drive train.
Malfunction Indicator Light (MIL) -- Malfunction Indicator Light (Service
Engine Soon, Check Engine) is a term used for the light on the instrument panel.
It is to alert the driver and/or the repair technician that there is a problem with
one or more of vehicle’s systems and may cause emissions to exceed federal
standards. If the MIL illuminates with a steady light, it indicates that a problem
has been detected and the vehicle should be serviced as soon as possible.
Under certain conditions, the dashboard light will blink or ash. This indicates a
severe problem and flashing is intended to discourage vehicle operation. The
vehicle onboard diagnostic system cannot turn the MIL off until the necessary
repairs are completed or the condition no longer exists.
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LAUNCH Gear Scan Plus User Manual
DTC -- Diagnostic Trouble Codes (DTC) that identifies which section of the
emission control system has malfunctioned.
Enabling Criteria -- Also termed Enabling Conditions. They are the vehicle-
specic events or conditions that must occur within the engine before the various
monitors will set, or run. Some monitors require the vehicle to follow a prescribed
“drive cycle” routine as part of the enabling criteria. Drive cycles vary among
vehicles and for each monitor in any particular vehicle. Please refer to the
vehicle’s factory service manual for specic enabling procedures.
OBD II Drive Cycle -- A specific mode of vehicle operation that provides
conditions required to set all the readiness monitors applicable to the vehicle to
the “ready” condition. The purpose of completing an OBD II drive cycle is to force
the vehicle to run its onboard diagnostics. Some form of a drive cycle needs to
be performed after DTCs have been erased from the PCM’s memory or after
the battery has been disconnected. Running through a vehicle’s complete drive
cycle will “set” the readiness monitors so that future faults can be detected. Drive
cycles vary depending on the vehicle and the monitor that needs to be reset. For
vehicle specic drive cycle, consult the service manual.
Freeze Frame Data -- When an emissions related fault occurs, the OBD II
system not only sets a code but also records a snapshot of the vehicle operating
parameters to help in identifying the problem. This set of values is referred to
as Freeze Frame Data and may include important engine parameters such as
engine RPM, vehicle speed, air ow, engine load, fuel pressure, fuel trim value,
engine coolant temperature, ignition timing advance, or closed loop status.
Fuel Trim (FT) - Feedback adjustments to the base fuel schedule. Short-term
fuel trim refers to dynamic or instantaneous adjustments. Long-term fuel trim
refers to much more gradual adjustments to the fuel calibration schedule than
short-term trim adjustments. These long-term adjustments compensate for
vehicle differences and gradual changes that occur over time.
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3. Product Descriptions
3.1 Outline of Gear Scan Plus
Figure 3-1
No. Name Descriptions
1 Charging LED
2 LCD Indicates test results.
DB-15 diagnostic
3
connector
4 5V Charging port
Red means Charging and Green means Fully
charged.
To connect to vehicle's DLC (Data Link Connector)
via diagnostic cable.
To connect to external DC power for charging the
tool.
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