Harbor Freight Tools 99722 User Manual
Table of Contents
1. Safety Precautions and Warnings................................................... 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 Definitions................................................................. 6
3. Using the Scan Tool.......................................................................... 8
3.1 Tool Description .................................................................... 8
3.2 Specifications ....................................................................... 10
3.3 Accessories Included ........................................................... 10
3.4 Navigation Characters ........................................................ 10
3.5 Keyboard.............................................................................. 11
3.6 Power .................................................................................... 11
3.7 Code Lookup........................................................................ 11
3.8 Product Setup ...................................................................... 13
3.9 Tool Information ................................................................. 20
3.10 Battery Replacement........................................................... 21
3.11 Vehicle Coverage ................................................................. 21
3.12 Product Troubleshooting .................................................... 22
4. Review Data .................................................................................... 23
5. OBD II Diagnostics......................................................................... 24
5.1 Reading Codes ..................................................................... 26
5.2 Erasing Codes ...................................................................... 28
5.3 Viewing Freeze Frame Data ............................................... 30
5.4 Retrieving I/M Readiness Status ........................................ 32
5.5 Viewing Vehicle Information.............................................. 34
6. Appendix ......................................................................................... 37
6.1 Appendix 1-- PID List ......................................................... 37
7. Warranty and Service.................................................................... 43
1. Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or the scan
tool, read this instruction manual first and observe the following
safety precautions at a minimum whenever working on a vehicle:
z Always perform automotive testing in a safe environment.
z Wear safety eye protection that meets ANSI standards.
z Keep clothing, hair, hands, tools, test equipment, etc. away from
all moving or hot engine parts.
z Operate the vehicle in a well ventilated work area: Exhaust gases
are poisonous.
z Put blocks in front of the drive wheels and never leave the vehicle
unattended while running tests.
z 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.
z Put the transmission in PARK (for automatic transmission) or
NEUTRAL (for manual transmission) and make sure the parking
brake is engaged.
z Keep a fire extinguisher suitable for gasoline/chemical/ electrical
fires nearby.
z Don’t connect or disconnect any test equipment while the ignition
is on or the engine is running.
z Keep the scan tool dry, clean, free from oil/water or grease. Use a
mild detergent on a clean cloth to clean the outside of the scan tool,
when necessary.
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2. General 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 OBD II system is designed to monitor emission control systems
and key engine components by performing either continuous or
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';
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 other four characters,
all numbers, 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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y
DTC Example
P0202
Systems
B=Body
C=Chassis
P=Powertrain
U=Network
Code Type
Generic (SAE):
P0, P2, P34-P39
B0, B3
C0, C3
U0, U3.
Manufacturer Specific:
P1, P30-p33
B1, B2
C1, C2
U1, U2
Identifying specific
malfunctioning
section of the
stems
s
Sub-systems
1= Fuel and Air Metering
2= Fuel and Air Metering
3= Ignition System or Engine Misfire
4= Auxiliary Emission Controls
5= Vehicle Speed Control and Idle
Controls
6= Computer Output Circuits
7= Transmission Controls
8= Transmission Controls
2.3 Location of the Data Link Connector (DLC)
The DLC (Data Link Connector or Diagnostic Link Connector) is the
standardized 16-cavity connector where diagnostic scan tools interface
with the vehicle's on-board 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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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) defined by the U.S. Environmental Protection Agency
(EPA). Not all monitors are supported by all 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）Misfire
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 misfire, and monitoring fuel demands.
Non-Continuous Monitors -- Unlike the continuous monitors, many
emissions and engine system components require the vehicle to be
operated under specific conditions before the monitor is ready. These
monitors are termed non-continuous monitors and are listed below:
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1) EGR System
2) O2 Sensors
3) Catalyst
4) Evaporative System
5) O2 Sensor Heater
6) Secondary air
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 scan tool 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
specific information on getting your vehicle’s OBD monitor system
ready, please consult your vehicle owner’s manual.
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2.6 OBD II 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 can not turn the MIL
off until necessary repairs are completed or the condition no longer
exists.
DTC -- Diagnostic Trouble Codes (DTC) that identify 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.
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 specific drive cycle, consult the
vehicle’s Owner’s Manual.
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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.
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3. Using the Scan Tool
3.1 Tool Description
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① LCD DISPLAY -- Indicates test results. Backlit, 128 x 64 pixel
display with contrast adjustment.
②
ENTER BUTTON -- Confirms a selection (or action) from a
menu.
③
ESC BUTTON -- Cancels a selection (or action) from a menu
or returns to the menu. It is also used to setup the system or exit the
DTC Lookup screen when pressed.
④
LEFT SCROLL BUTTON -- When look up DTC
definitions, moves to previous character and moves to previous
screens to view additional information on DTC definition covers
more than on screen. It is also used to update DTC library when
pressed.
⑤
RIGHT SCROLL BUTTON -- When look up DTC
definitions, moves to next character and moves to next screens to
views additional information when DTC definition covers more
than one screen.
⑥
UP SCROLL BUTTON -- Moves up through menu and
submenu items in menu mode. When more than one screen of data
is retrieved, moves up through the current screen to the previous
screens for additional data.
⑦
DOWN SCROLL BUTTON -- Moves down through menu
and submenu items in menu mode. When more than one screen of
data is retrieved, moves down through the current screen to next
screens for additional data. It is also used as hotkey for language
setup when pressed.
⑧
⑨
HELP BUTTON -- Provides help information when pressed.
POWER SWITCH -- Turns on/off the scan tool when
powered by cell battery; reset the scanner when powered by
vehicle battery.
⑩ OBD II CONNECTOR -- Connects the scan tool to the vehicle’s
Data Link Connector (DLC).
⑪ RUBBER BOOT -- Protects the scan tool from drop, abrasion and
etc.
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3.2 Specifications
1) Display: Backlit, 128 x 64 pixel display with contrast adjustment
2) Operating Temperature: 0 to 60°C (32 to 140 F°)
3) Storage Temperature: -20 to 70°C (-4 to 128 F°)
4) External Power: 8.0 to 18.0 V power provided via vehicle battery
5) Internal Power: 9V cell battery
6) Dimensions:
Length Width Height
178 mm (7.00”) 95 mm (3.74”) 35 mm (1.38”)
7) NW: 0.38kg (0.84lb), GW: 0.55kg (1.21lb)
3.3 Accessories Included
1) User’s Manual -- Instructions on tool operations
2) CD -- Includes user’s manual, DTC lookup software and etc.
3) OBD2 cable -- Provides power to tool and communicates between
tool and vehicle
4) USB cable -- Used to upgrade the scan tool.
5) Carry case -- A nylon case to store the scan tool when not in use.
6) Cell battery -- Supplies power to the scan tool when
disconnected from vehicle DLC.
3.4 Navigation Characters
Characters used to help navigate the scan tool are:
1) “►” -- Indicates current selection.
2) “ ”-- A DOWN Arrow indicates additional information is
available on the next screen.
3) “ ”-- An UP Arrow indicates additional information is available
on the previous screen.
4) “$” -- Identifies the control module number from which the data
is retrieved.
5) “?” -- Indicates help information is available.
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6) “ ” -- Indicates battery volume.
3.5 Keyboard
No solvents such as alcohol are allowed to clean the keypad or display.
Use a mild nonabrasive detergent and a soft cotton cloth. Do not soak
the keypad as the keypad is not waterproof.
3.6 Power
Internal Battery Power
The scan tool has a 9V cell battery that provides power for off-car
reviewing and analysis. Press the power key to turn on the scan tool.
When the “
“Battery Replacement” on paragraph 3.10.
• If the scan tool is stored for a long period of time, remove
batteries to prevent battery leakage from damaging battery
compartment.
External Power
External power of the scan tool is provided via the vehicle Data Link
Connector (DLC). Just follow the steps below to turn on the scan tool:
1) Connect the OBD II Cable to scan tool.
2) Find DLC on vehicle.
” icon appears, replace the battery as instructed in
• A plastic DLC cover may be found for some vehicles and you
need to remove it before plugging the OBD2 cable.
3) Plug OBD II cable to the vehicle’s DLC.
3.7 Code Lookup
The Code Lookup function is used to search for definitions of
DTCs in built-in DTC library.
1) From Main Menu, use UP/DOWN scroll button to select DTC
Lookup and press ENTER button.
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Main Menu
Diagnostics
►DTC Lookup
Review Data ?
System Setup
Tool Information
2/5
z The number “x/x” to the right indicates total number of items
under this menu and sequence of highlighted item.
z The “?” to the right indicates help information available. Press
HELP button to view information for selected item.
2) From DTC Lookup menu, use LEFT/RIGHT arrow button to
move to the desired character, use UP/ DOWN arrow button to
change selected digit/character and press ENTER button to
confirm.
DTC Lookup
P 0 0 0 1
[ ] = Left, [ ] = Right
［ ］［ ］= Change Digit
［ENTER］= Confirm
［ESC］= Exit
3) View the DTC definition on screen. When DTC definition covers
more than one screen, use LEFT/RIHT button to view
additional information on previous/next screens.
z For manufacturer specific codes, you need to select a vehicle
make on an additional screen to look for DTC definitions.
z If definition could not be found (SAE or Manufacturer
Specific), the scan tool displays “DTC definition not found!
Please refer to vehicle service manual!
4) To view next or previous DTC in the built-in DTC library, use
UP/DOWN button.
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