iCarsoft HD V3.0 User manual

Heavy Duty Diagnostic Tool
HD V3.0
User Manual

Heavy Duty & OBDII Diagnostic Tool HD V3.0
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EN
Disclaimer
All information, illustrations, and specifications 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.
Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or the HD V3.0,
please read this user‟s manual first 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 of 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.
Use extreme caution when working around the ignition coil, distributor
cab, 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 fire extinguisher suitable for gasoline/ chemical/ electrical fires
nearby.
Don‟t connect or disconnect any test equipment while the ignition is on or
the engine is running.
Keep the HD V3.0 dry, clean, free from oil/ water or grease. Use a mild
detergent on a clean cloth to clean the outside of the HD V3.0, when
necessary.

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Table of contents
1 Introduction...............................................................................................1
2 General Information..................................................................................1
2.1 On-Board Diagnostics (OBD) II .........................................................1
2.2 Diagnostic Trouble Codes (DTCs).....................................................2
2.2.1 OBDII DTC.................................................................................2
2.2.2 DTCs for J1587 /J1708 and J1939.............................................3
2 .3 J1708/J1587/J1939.......................................................................... 4
2.4 OBD Definitions.................................................................................5
3 Product Descriptions.................................................................................6
3.1 Outline of HD V3.0.............................................................................7
3.2 Specifications....................................................................................8
3.3 Accsessories.....................................................................................9
3.4 Power supply.....................................................................................9
4 Connections & General Operations......................................................... 11
4.1 Connections .................................................................................... 11
4.2 Battery.............................................................................................12
4.3 DTC Library.....................................................................................13
4.4 Settings ...........................................................................................13
4.5 About...............................................................................................14
5 Diagnose ................................................................................................14
5.1 Truck OBD Diagnosing.....................................................................16
5.1.1 Read DTC.................................................................................17
5.1.2 Clear DTC................................................................................18
5.1.3 Live Data..................................................................................18
5.2 Car OBDII Diagnosing.....................................................................19
5.2.1 Read Codes..............................................................................19
5.2.2 Erase Codes ............................................................................20
5.2.3 I/M Readiness..........................................................................21
5.2.4 Live Data...................................................................................21
5.2.5 View Freeze Frame...................................................................21
5.2.6 Oxygen sensor test...................................................................21
5.2.7 On-board monitor test...............................................................22
6 How to Upgrade HD V3.0 .......................................................................22
6.1 Upgrading flowchart.........................................................................22
6.2 User registration..............................................................................23
6.3 Upgrading:.........................................................................................24
7 FAQ ........................................................................................................24

Heavy Duty & OBDII Diagnostic Tool HD V3.0
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1 Introduction
The HD V3.0 is specially developed by iCarsoft for heavy duty vehicles,
which support all 10 modes of OBDII test (EVAP, 02 Sensor, I/M Readiness,
MIL Status, VIN info, and On –board monitors testing etc.) for a complete
diagnosis and enables users to read DTCs, clear DTCs and view the
datastream with a live color graphing. It covers a wide range of vehicles since
it offers multiple data bus protocols, such as J1587 and J1939. It can be
connected to PC through the USB cable or upgrade to keep updated with the
latest software version.
Notice: HD V3.0 may automatically reset while being disturbed by strong
static electricity. THIS IS A NORMAL REACTION.
2General Information
2.1 On-Board Diagnostics (OBD) II
The first generation of On-Board Diagnostics (called 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 On-Board Diagnostic regulations is
called “OBD II”.
The ODB II system is designed to monitor emission control systems and
key engine components by performing either continuous of periodic tests of
specific 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 find and fix the
problem. Here below follow three pieces of such valuable information:
1. Whether the Malfunction Indicator Light (MIL) is commanded „on‟or
„off‟;

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2. Which, if any, Diagnostic Trouble Codes (DTCs) are stored;
3. Readiness Monitor status.
2.2 Diagnostic Trouble Codes (DTCs)
Diagnostic Trouble Codes (DTCs) 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 the intended to
provide you with a guide as to where a fault might be occurring within a
vehicle.
2.2.1 OBDII DTC
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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EN
Figure 2-1
2.2.2 DTCs for J1587 /J1708 and J1939
This section explains the basic elements of fault codes for J1587 / J1708
and J1939 data bus protocols, how to view these codes on HD V3.0, and
what they mean. Each fault code on HD V3.0 contain three distinct pieces of
information, as described below.
J1587 /J1708 fault codes consist of the following, in this order:
Subsystem Identifier (SID) –Indicates what function on the ECU has
failed.
Failure Mode Indicator (FMI) –Indicates in what way the function
failed.
Occurrence (OC)–Indicates the occurrence times of fault codes.
J1939 fault codes consist of the following, in this order:
Suspect Parameter Number (SPN) –Indicates what function on the

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ECU has failed.
Failure Mode Indicator (FMI) –Indicates in what way the function
failed.
Occurrence (OC) –Indicates the occurrence times of fault codes.
2 .3 J1708/J1587/J1939
SAE J1708, SAE J1587 and SAE J1939 are automotive diagnostic
protocol standard developed by the Society of Automotive Engineers (SAE).
SAE J1708
SAE J1708 is a standard used for serial communications between ECUs
on a heavy duty vehicle and also between a computer and the vehicle. With
respect to Open System Interconnection model (OSI), J1708 defines the
physical layer. Common higher layer protocols that operate on top of J1708
are SAE J1587 and SAE J1922.
SAE J1587
SAE J1587 is an automotive diagnostic protocol standard developed by
the Society of Automotive Engineers (SAE) for heavy-duty and most
medium –duty vehicles built after 1985. The J1587 protocol uses different
diagnostic connectors. Up to 1995, individual OEMs used their own
connectors. From 1996 to 2001, the 6-pin Deutsch-connector was standard.
Beginning in 2001, most OEMs converted to the 9-pin Deutsch. Some OEMs
still use the 6-pin Deutsch. It has mostly been used for US made vehicles,
and also by Volvo. SAE J1708 makes up the physical and data link layers
while SAE J1587 makes up the transport and application layers with respect
to the OSI model. SAE J1587 is used in conjunction with SAE J1708 for
automobile communication.
SAEJ1939
SAE J1939 is the vehicle bus standard used for communication and
diagnostics among vehicle components, originally by the car and heavy duty
truck industry in the United States.
SAE J1939 is used in the commercial vehicle area for communication
throughout the vehicle. With a different physical layer it is used between the
tractor and trailer. This is specified in ISO 11992.

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EN
SAE J1939 can be considered the replacement for the older SAE J1708
and SAE J1587 specifications.
SAE J1939 has been adopted widely by diesel engine manufacturers.
One driving force behind this is the increasing adoption of the engine
Electronic Control Unit (ECU), which provides one method of controlling
exhaust gas emissions within US and European standards. Consequently,
SAE J1939 can now be found in a range of diesel-powered applications:
vehicles (on –and off - road), marine propulsion, power generation and
industrial pumping.
Applications of J1939 now include off-highway, truck, bus, and even
some passenger car applications.
2.4 OBD Definitions
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 flash. 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. 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 –specific 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 specific
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

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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 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 be reset. For vehicle specific 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 flow, 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.
3 Product Descriptions