Centech CAN IBD II Assembly instructions
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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright©2014 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
REV 15f
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Table of Contents
Safety ..........................................3
Specifications ..............................5
Overview......................................5
Setup - Before Use:.....................8
Operating Instructions .................9
Maintenance...............................15
Troubleshooting..........................15
Warranty .....................................16
WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
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Important Safety Information
Work Area Safety
1. Keep your work area clean and well lit.
Cluttered benches and dark
areas may cause accidents.
2. Do not connect or disconnect the
Scan Tool while the ignition is
on or the engine is running.
3. DO NOT attempt to operate
the Scan Tool while driving
the vehicle. Have a passenger
operate the Scan Tool.
4. Before testing a vehicle, engage the
parking brake and chock the tires.
5. NEVER smoke or allow a spark or
flame in vicinity of battery or engine.
6. Operate the vehicle in a well ventilated
work area.
Exhaust gases are poisonous.
7. Do not operate the Scan Tool
in explosive atmospheres, such
as in the presence of flammable
liquids, gases, or heavy dust.
8. Keep a fire extinguisher suitable for
gasoline/chemical/electrical fires nearby.
9. 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.
10. Keep bystanders, children and visitors
away while operating the Scan Tool.
11. This product is not a toy. Do not allow
children to play with or near this item.
12. Use as intended only.
13. Inspect before every use; do not use
if parts are loose or damaged.
14. Do not place the Scan Tool
on any unstable surface.
15. Handle the Scan Tool with care. If
the Scan Tool is dropped, check for
breakage and any other conditions
that may affect its operation.
16. 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.
17. Store the Scan Tool and
accessories in a locked area
out of the reach of children.
18. Maintain product labels and
nameplates. These carry
important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Electrical Safety
1. Do not use the Scan Tool
while standing in water.
2. Avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators.
3. Do not expose the Scan Tool to rain or
wet conditions.
Water entering the Scan Tool
increases the risk of electric shock.
4. Make sure your hands are dry
before operating the Scan Tool.
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Personal Safety
1. Wear ANSI-approved safety
goggles during use.
2. Do not wear loose clothing or jewelry.
Keep your hair, clothing, and
gloves away from moving parts.
Loose clothes, jewelry, or long hair
can be caught in moving parts.
3. Do not use the Scan Tool while tired or
under the influence of drugs, alcohol, or
medications. A moment of interruption
can result in serious personal injury.
4. People with pacemakers should
consult their physician(s) before
use. Electromagnetic fields in close
proximity to heart pacemaker could
cause pacemaker interference
or pacemaker failure.
5. WARNING: The cord of this product
contains lead and/or di (2-ethylhexyl)
phthalate (DEHP), chemicals known
to the State of California to cause
cancer, and birth defects or other
reproductive harm. Wash hands
after handling. (California Health &
Safety Code § 25249.5, et seq.)
6. WARNING: This product contains
lead, a chemical known to the State
of California to cause cancer and
birth defects or other reproductive
harm. (California Health &
Safety Code § 25249.5, et seq.)
7. The warnings, precautions, and
instructions discussed in this instruction
manual cannot cover all possible
conditions and situations that may
occur. It must be understood by the
operator that common sense and
caution are factors which cannot
be built into this product, but must
be supplied by the operator.
Service
There are no user serviceable parts. Scan Tool service must
be performed only by qualified repair personnel.
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Specifications
Display Screen Backlit LCD (128 x 64)
Operating Temperature 32°F to 140°F
Storage Temperature -4°F to 158°F
Power 8V to 18V power provided by vehicle battery
Overview
OBD II On-Board Diagnostics
It is required by the EPA that all 1996 and
newer vehicles sold in the United States be
equipped with an OBD II computer system.
OBD II is an early warning system
designed to monitor engine, transmission,
and emissions control components by
performing specific diagnostic tests.
When a fault condition is detected, the
system captures important data and
activates the “Check Engine” light.
If the light comes on, the vehicle might have
a condition that wastes fuel, shortens engine
life, or causes excessive air pollution. If
the problem that caused the light to come
on is addressed, for instance a loose gas
cap is tightened, the light will go out.
If the light comes on and stays on, a minor
engine fault condition is occurring and
should be addressed as soon as possible
If the light is blinking, a severe engine
fault condition is occurring and should
be addressed immediately.
The Scan Tool connects to the vehicle’s
computer system and captures information
that can help identify the fault condition.
Vehicle Coverage
This Scan Tool is designed to work with
all OBD II compliant vehicles, including
those equipped with a CAN bus.
OBD II was installed in some 1994 and
1995 model year gasoline vehicles.
To verify if a 1994 or 1995 vehicle is
OBD II compliant, check the Vehicle
Emissions Control Information label, which
is located in the engine compartment.
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Definitions
• DLC: Data Link Connector
The 16-cavity connector on the vehicle
that allows communication between the
computer system and the Scan Tool.
• Drive Cycle
A set of driving procedures that,
when met, provide the Enabling
Criteria for the I/M Monitors to run
and complete their diagnostic tests.
• Control Modules
Individual computers that operate
and monitor different systems in
the vehicle. Control Modules vary
depending on manufacturer.
• MIL: Malfunction Indicator Lamp
The vehicle’s “Check Engine”
warning light that activates
when a DTC is stored.
• DTC: Diagnostic Trouble Code
A code stored in the computer
system’s memory, which helps to
identify the fault condition that is
causing the MIL to activate.
• Freeze Frame Data
Operating conditions that are
stored when a DTC is stored.
• PID - Parameter Identification Data
Data returned by the vehicle’s
Control Modules to the Scan Tool.
I/M Monitors
Inspection and Maintenance diagnostic tests that the Control Modules
perform on specific sub-systems of the vehicle.
There are two types of Monitors:
• Continuous: Monitors that
perform tests all the time while
the engine is running.
• Non-Continuous: Monitors that require
specific operating conditions to be met
during a Drive Cycle in order for the
Monitors to run their testing sequences.
Note: Not all Monitors are
supported by all vehicles.
Gasoline Engine Monitors
Continuous
MIS - Misfire
FUEL - Fuel System
CCM - Comprehensive Components
Non-Continuous
CAT - Catalyst
HCAT - Heated Catalyst
EVAP - Evaporative System
AIR - Secondary Air System
O2S - Oxygen Sensors
HTR - Oxygen Sensor Heater
EGR - EGR System
Diesel Engine Monitors
Continuous
MIS - Misfire
FUEL - Fuel System
CCM - Comprehensive Components
Non-Continuous
HCCAT - NMHC Catalyst
NCAT - NOx Aftertreatment
BP - Boost Pressure System
EGS - Exhaust Gas Sensor
PM - PM Filter
EGR - EGR System
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Diagnostic Trouble Code
A five digit alphanumeric identifier for a fault condition identified
by the OBD II system. There are three types of DTCs:
1. Pending - When a fault condition
is identified during a Drive Cycle,
but does not meet enough
criteria to activate the MIL.
If the fault condition occurs during two
consecutive Drive Cycles, it will turn into
a Stored DTC and the MIL will activate.
2. Stored - ADTC is stored when a fault
condition has occurred that meets
enough criteria to activate the MIL.
3. Permanent - A stored DTC that can only
be cleared by the OBD II system, after
repairs are made, and a set number of
Driving Cycles have been completed.
Example: P0303 - Cylinder 3 Misfire
Systems
B - Body
C - Chassis
P - Powertrain
U - Network
Code Types*
0 - Generic
1 - Manufacturer Specific
2 - Generic Powertrain/Manufacturer Specific
3 - Generic Powertrain/Manufacturer Specific
Sub-Systems
1 - Fuel and Air Metering
2 - Fuel and Air Metering
(injector circuit malfunction only)
3 - Ignition Malfunction or Engine Misfire
4 - Auxiliary Emission Controls
5 - Vehicle Speed or Idle Controls
6 - Computer Output Circuits
7 - Transmission Controls
8 - Transmission Controls
03 - Cylinder 3
*The Scan Tool supports the following Code Types:
P 0 3 0 3
Generic (SAE):
P0, P2, P3, U0
Manufacturer Specific:
P1, P3, U0
Figure A
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Setup - Before Use:
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the
beginning of this document including all text under subheadings therein
before set up or use.
Functions
1
2
4
3
Figure B
1. OBD II Cable
Connects the Scan Tool to
the vehicle’s DLC.
2. LCD Screen
3. ENTER/Exit
Confirms a selection from a menu
or returns to the previous screen.
4. SCROLL
Scrolls through menu items.
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Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the
beginning of this document including all text under subheadings therein
before set up or use of this product.
TO PREVENT SERIOUS INJURY AND DEATH:
Exhaust gases are poisonous. Operate the vehicle in a well ventilated work area.
Wear ANSI-approved safety goggles during use.
Connect Scan Tool
CAUTION: Do not connect or disconnect
the Scan Tool while the ignition
is on or the engine is running.
Note: The Scan Tool is powered
by the vehicle’s battery.
1. Turn the engine and ignition OFF.
2. Connect the Cable to the 16-cavity DLC.
The DLC is normally located under
the dashboard on the driver’s
side. (Refer to vehicle’s owner’s
manual for location of DLC.)
Figure C: DLC
3. Turn the vehicle’s ignition ON
with the engine OFF.
Note: If Linking Error! message displays:
• Verify the ignition is ON
• Verify the vehicle is OBD II compliant
4. If the message does not go away,
have the Scan Tool inspected
by a qualified technician.
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Setup
From the Startup Screen, press SCROLL to enter System Setup.
Note: Setup is not required to operate the Scan Tool.
CAN OBD2 CODE READER
[ENTER]-SCAN
[SCROLL]-SETUP
OBDII
Figure D
System Setup
1/4
►1) Language
2) Unit of Measure
3) Contrast
4) Exit
Figure E
Set Language
1. From System Setup, select
Language, then press ENTER.
2. Select desired language,
then press ENTER.
Language
3/5
►
Deutsch
English
Dutch
Espanol
Figure F
Unit of Measure
1. From System Setup, select
Unit of Measure, then press ENTER.
2. Select English or Metric,
then press ENTER.
Unit of Measure
1/2
►English
Metric
Figure G
Contrast
1. From System Setup, select
Contrast, then press ENTER.
2. Press SCROLL to change
contrast as needed.
Contrast
Contrast (50)
Use to change
Figure H
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Diagnostic Menu
Note: Not all vehicles return the same data, results
may vary from the examples given herein.
1. From the Startup Screen,
press ENTER.
CAN OBD2 CODE READER
[ENTER]-SCAN
[SCROLL]-SETUP
OBDII
Figure I
2. System Status will display momentarily.
System Status
Codes Found 0
Monitors N/A 4
Monitors OK 7
Monitors INC 0
Figure J
3. Control Module will display, press
ENTER to view Diagnostic Menu..
Control Module
1/4
►$7E8
$7EB
$7EA
Exit
Figure K
4. Diagnostic Menu will display.
Diagnostic Menu
1/6
►1) Read Codes
2) Erase Codes
3) View Freeze Frame
4) I/M Readiness
5) Vehicle Info
6) Exit
Figure L
1) Read Codes
1. From Diagnostic Menu, select
Read Codes, then press ENTER.
Note; If more than one Control
Module is detected, each Module
must be tested separately.
2. Select a Module, then press ENTER.
Control Module
1/4
►$7E8
$7EB
$7EA
Exit
3. If there are no DTCs, the
message “No codes are stored
in the module” will appear.
4. View the DTC.
1/1
P0113 $10 Generic
Intake Air Temperature
Sensor 1 Circuit High
DTC Control Module
DTC Description
Figure M
5. Repeat for other Module(s).
6. When finished, select Exit,
then press ENTER.
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2) Erase Codes
CAUTION: Do not clear any DTCs before
the vehicle has been repaired and the
system has been checked completely by
a qualified technician.
As long as there is a fault
condition, the DTCs will continue
to set and turn on the MIL.
1. From Diagnostic Menu, select
Erase Codes, then press ENTER.
2. Choose whether or not to erase codes.
Erase Codes
Erase trouble codes!
Are you sure?
NO
YES
Figure N
3. When DTCs have been erased, the
following message will appear.
Erase Codes
Erase done!
Figure O
Note: Erasing codes will reset the
Monitors to incomplete status. A
Drive Cycle will need to be completed
before performing an I/M Readiness test.
Clearing the error code will not
repair the car. Repair the car,
then clear the error code.
3) View Freeze Frame Data
View the vehicle’s operating conditions when a DTC is stored.
Note: Not all vehicles return the same data, results
may vary from the examples given herein.
1. From Diagnostic Menu,
select View Freeze Frame,
then press ENTER.
Note; If more than one Control
Module is detected, each Module
must be viewed separately.
2. Select a Module, then press ENTER.
Control Module
1/4
►$7E8
$7EB
$7EA
Exit
Figure P
3. View data.
View Freeze Frame
1/4
DTCRFRZF P2270
FUELSYS1 OL
FUELSYS2 N/A
LOAD_PCT (%) 0.0
Figure Q
4. Repeat for other Module(s).
5. When finished, select Exit,
then press ENTER.
Note: If necessary, have a qualified
technician Interpret the data.
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4) I/M Readiness
Check emissions readiness prior to having a vehicle inspected for a state Emissions Test.
1. From Diagnostic Menu, select
I/M Readiness,then press ENTER.
I/M Readiness
►Since DTCs Cleared
Previous Menu
This Driving Cycle
1/3
Figure R
2. Select Since DTCs Cleared or
This Driving Cycle, then press ENTER.
3. View data.
Since DTCs cleared
MIL Status OFF
Fuel System Mon
Comp. Component OK
OK
OK
Misfire Monitor
1/3
Since DTCs cleared
Catalyst Mon OK
EVAP System Mon
Sec Air System N/A
INC
N/A
Htd Catalyst
2/3
Since DTCs cleared
A/C Refrig Mon OK
Oxygen Sens Htr
EGR System N/A
OK
OK
Oxygen Sens Mon
3/3
Figure S
4. Interpret data.
OFF Check Engine light off, no
stored DTCs present.
OK The Monitor has completed its
diagnostic routine and is ready.
INC The Monitor has not completed its
diagnostic routine and is not ready.
Perform a Drive Cycle,
then repeat the test.
N/A The Monitor is not supported
on the vehicle.
Note: A Drive Cycle will need to
be completed before performing an
I/M Readiness test if the battery
has been disconnected or DTCs
have been erased recently.
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5) Vehicle Information
Note: Not all vehicles return the
same data, results may vary from
the examples given herein.
1. From Diagnostic Menu, select
Vehicle Info., then press ENTER.
Vehicle Info.
1/4
►Calibration ID
In-use Perform Track
Cal. Verf. Number
Previous Menu
Figure T
2. From Vehicle Info., select,
Calibration ID then press ENTER.
Calibration ID
1/1
Cal ID:
34714000
.
Figure U
3. From Vehicle Info., select,
Cal. Verf. Number then press ENTER.
Cal. Verf. Number
1/1
CVN1:
9C 89 54 C5
Figure V
Note: For In-use Perform Track, have
a qualified technician Interpret the data.
Record Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts
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Inspection and Maintenance
Procedures not specifically explained in this manual
must be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM ELECTRICAL SHOCK:
Make sure that the Scan Tool is unplugged from the vehicle
before performing any procedure in this section.
Inspection
1. BEFORE EACH USE, inspect
the general condition of the
Scan Tool. Check for:
• cracked or damaged Cable,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.
Cleaning and Storage
1. AFTER USE, use a mild detergent
on a clean cloth to remove any oil,
grease or dirt from the Scan Tool,
especially on the buttons, being
careful to not put excessive
pressure on the Display Screen.
2. Do not use solvents on the Keyboard.
Do not soak the Keyboard, Use a mild
nonabrasive detergent and a soft cloth.
3. Store the Scan Tool, and accessories
away from sunlight in a dry, locked
area, out of the reach of children.
Troubleshooting
Problem Possible Causes Likely Solutions
Scan Tool doesn’t power up 1. OBD II Cable connector
not connected securely.
2. Vehicle’s DLC pins are
bent or broken.
3. Vehicle’s battery is bad.
1. Verify that Cable connector
is securely connected to
the vehicle’s DLC.
2. Check if the DLC pins are bent or
broken. If bent or broken, have a
certified technician repair the DLC.
3. Make sure vehicle’s battery
it providing at least 8V.
Vehicle Linking Error 1. Vehicle is not OBD
compliant.
2. Ignition is off.
3. Bad connection.
1. Verify that the vehicle is
OBD II compliant.
2. Verify that the ignition is ON.
3. Reset the tool by turning the
ignition off, waiting 10 seconds,
then turning the ignition back on.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect power supply before service.
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Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free from
defects in materials and workmanship for the period of 90 days from the date of purchase.
This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence
or accidents, repairs or alterations outside our facilities, criminal activity, improper installation,
normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages
arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to you.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation
charges prepaid. Proof of purchase date and an explanation of the complaint must accompany
the merchandise. If our inspection verifies the defect, we will either repair or replace
the product at our election or we may elect to refund the purchase price if we cannot readily
and quickly provide you with a replacement. We will return repaired products at our expense,
but if we determine there is no defect, or that the defect resulted from causes not within
the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
NOTE: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
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