Clarke CEOBDS User manual

ENGINE FAULT CODE READER
Model No: CEOBDS
Part No: 4501135
USER INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC0720-rev 3

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Table of Contents
1 INTRODUCTION
1.1 About the COBD II Code Reader 3
1.2 Safety Precautions and Warnings 3
2. GENERAL INFORMATION
2.1 On-Board-Diagnostics (OBD) II 4
2.2 Diagnostic Trouble Codes (DTCS) 4
2.3 Location of the Data Link Connector (DLC) 6
2.4 OBD II Readiness Monitors 6
2.5 OBD II Monitor Readiness Status 6
2.6 OBD II T erminology 6
3. PRODUCT INFORMATION
3.1 Device Description 9
3.2 Specifications 9
3.3 Accessories Included 10
3.4 Navigation Characters 10
3.5 Vehicle Power 10
3.6 Product Setup 10
3.7 Vehicle Coverage 13
4. OBD DIAGNOSTICS
4.1 System Status 14
4.2 Reading Codes 15
4.3 Erasing Codes 16
4.4 Live data 17
4.5 Viewing Freeze Frame Data 18
4.6 Retrieving I/M Readiness Status 19
4.7 Viewing Vehicle Information 21
4.8 Exiting the OBDII Test 22
5. SOFTWARE UPDATES
5.1 Software Downloads 22
6. DECLARATION OF CONFORMITY 23

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WARRANTY AND SERVICE
Limited One Year Warranty
This product is guaranteed against faulty manufacture for a period
of 12 months from the date of purchase. Please keep your receipt
which will be required as proof of purchase.
This guarantee is invalid if the product is found to have been abused
or tampered with in any way, or not used for its intended purpose.
Faulty goods should be returned to their place of purchase, no
product can be returned to us without prior permission. This
guarantee does not affect your statutory rights.
1 INTRODUCTION
1.1 About the CEOBD 2 Code Reader
This powerful device will help you take charge of your vehicle’s
maintenance and servicing needs. Today’s vehicles use computer control
systems to ensure peak performance and fuel efficiency while reducing
pollutants in the vehicle’s emissions. These systems also have the ability
to perform self-testing and diagnostics on various vehicle systems and
components, and provide valuable information to aid in servicing and
repair. However, these sophisticated systems often required expensive
devices and test equipment in order to retrieve this information. Until now,
consumers had to rely on professional service technicians to maintain
their vehicles in top condition.
The OBD 2 Code Reader brings the power of the technician into your
hands in a cost-effective, easy-to-use package. Whether you are a “put
the key in and go” consumer, hobby mechanic or skilled DIYer, the Code
Reader offers the features and functions you need to take control of your
vehicle’s testing, servicing and maintenance needs.
1.2 Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or the code
reader, read this instruction manual first and observe the following
safety precautions as a minimum whenever working on a vehicle:
1. Always perform automotive testing in a safe environment.
2. Wear safety eye protection that meets approved standards.
3. Keep clothing, hair, hands, tools, test equipment, etc, away from all
moving or hot engine parts.
4. Operate the vehicle in a well-ventilated work area; exhaust gases are
poisonous.
5. Put blocks against driven wheels and never leave the vehicle
unattended while running tests.

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6. 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.
7. Always put the transmission in PARK (for automatic transmission)
or NEUTRAL (for manual transmission) and make sure the parking
brakeis engaged.
8. Keep a fire extinguisher suitable for fuel / chemical /electrical fires
nearby.
9. Don’t connect or disconnect any test equipment with the ignition on,
or engine running.
10. Keep the code reader dry, clean and free from oil, water and
grease. Use a mild detergent on a clean cloth to clean the
outside of the device when necessary.
2. GENERAL INFORMATION
2.1 On-Board-Diagnostics (OBD) 2
The first generation of On-Board Diagnostic (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 and the desire to improve
On-Board Diagnostic capability increased, a new generation of On-
Board Diagnostics 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 crucial information:
● Whether the Malfunction Indicator Light (MIL) is commanded
'on' or 'off';
● Which if any, DiagnosticTrouble Codes (DTCs) are stored;
● 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

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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.
Below is an example to illustratethe structure of the digits.
DTC
Example
P 0 2 0 1
Systems
B=Body Identifies what section
C= Chassis of the system is malfunctioning
P = Powertrain
U= Network
Sub-systems
Code Type 1=Fuel and Air Metering
Generic (SAE): 2= Fuel and Air Metering
PO, ,P2, P34-P39 3=Ignition System / Engine Misfire
B0, B3 4=Auxiliary Emission Controls
C0, C3 5=Vehicle Speed Control and
U0, U3 Idle Controls
Manufacturer Specific 6=Computer Output Circuits
P1,P30-P33 7=Transmission Controls
B1, B2 8=Transmission Controls
C1, C2
U1, U2
2.3 Location of the Data Link Connector (DLC)
The DLC (Data Link Connector or Diagnostic Link Connector) is the
standardised 16-cavity connector where diagnostic scan tools interface
with the vehicle's on-board computer. The DLC is usually located 12
inches from the centre of the instrument panel (dash), under or
around the driver’s side for most vehicles. Consult the vehicle owners
service manual for the location of the connector if the DLC cannot be
found.

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2.4 OBD II Readiness Monitors
An important part of a vehicle’s OBDII system are the Readiness
Monitors, which are indicators used to find out if all of the emissions
components have been evaluated by the OBD II system. Periodic
tests are run on specific systems and components to ensure that they
are performing within allowablelimits.
Currently, there are eleven known OBD II Readiness Monitors (or I/M
Monitors). 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 componentsor systems
are continuously tested by the vehicle’s OBDII 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 Monitoring (CCM)
Once the vehicle is running, the OBDII 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:
1. EGR System
2. O2Sensors
3. Catalyst
4. Evaporative System
5. O2Sensor Heater
6. Secondary Air
7. Heated Catalyst
8. A/C system

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2.5 OBD II Monitor Readiness Status
OBDII 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 OBDII system.
The purpose of recording readiness status is to allow inspectors to
determine if the vehicle’s OBDII 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 vehicleowner’s manual.
2.6 OBD II Terminology
Powertrain Control Module (PCM) - OBDII terminology for the on-
board computer that controls engine and drivetrain.
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 on-board diagnostic system cannot turn the MIL off until the
necessary repairs are completed or the condition no longer exists.

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DTC--Diagnostic Trouble Codes (DTC) that identify which section of
the emission control systemhas malfunctioned.
Enabling criteria - (Also termed Enabling Conditions). These 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.
OBDII 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 on-board 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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3. PRODUCT INFORMATION
3.1 Device Description
1. LCD DISPLAY--Indicates test results & optional settings.
2. ENTER BUTTON--Confirms a selection (or action) from a menu
list, or returns to the main menu.
3. SCROLL BUTTON--Scrolls through menu items or cancel an
operation.
4. OBD II CONNECTOR--Connects the Code Scanner to the
vehicle’s Data Link Connector (DLC).
3.2 Product Specifications
1. Display: LCD dot matrix
2. Operating Temperature: -10 to 60°C (-14 to 140 F°)
3. Storage Temperature: -20 to 70°C (-4 to 158 F°)
4. Power—8-18V DC provided via detachableOBD II cable
5. Dimensions:
Length /Width /Height
128 mm x 75 mm x 20mm
6. Weight: 330g

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3.3 Accessories Included
1). User Manual
2). USB Cable –provides power to device and communicates
between device and vehicle.
3). Mini CD ROM containing diagnostic software.
3.4 Navigation Characters
Characters used to help navigate the code reader are:
1) “>” - Indicate current selection.
2) “Pd” –indicates a pending DTC when viewing DTCs.
3) “$” - -identifies the control module number from which the data
is retrieved.
3.5 Vehicle Power
The power of the code reader is provided via the vehicle Data Link
Connector (DLC). Follow the steps below to turn on the code
reader:
1). Connect the OBDII cable to the code reader.
2). Find DLC on vehicle. (A plastic DLC cover may be found for
some vehicles and you will need to remove it before plugging in the
OBDII cable.
3). Plug the OBDII cable into the vehicle’s DLC as per the vehicle
manufacturer’s handbook.
3.6 Product Setup
The code reader allows you to make the following adjustments and
settings.
1) Language: Selects desired language.
2) Unit of Measure: either UK imperial or metric.
3) Contrast Adjustment: Adjusts the contrast on the LCD display.
The settings of the unit will remain until change to the existing
settings is made.
To enter the setup menu
From the second start-up screen, press the SCROLL button to enter the
system setup menu. Follow the instructions to make adjustments and
settings as described in the following setup options.

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The number “x/x” to the upper right corner of the screen indicates the
total number of items under the menu and sequence of the currently
selected item. . System Setup
1) Language
2) Unit of measure
3) Contract
4) Exit
Language Setup
English is the default language.
1) From the System Setup menu, use the SCROLL button to select
Language and press the ENTER/EXIT button.
System Setup
1) Language
2) Unit of measure
3) Contract
4) Exit
2) Use the SCROLL button to select the desired language and press
ENTER/EXIT to save you selection and return to the previous menu.
Language
Deutsch
English
Francais
Espaniol
Unit of Measurement
Metric is the default measurement unit.
1) From System Start-up menu, use the SCROLL button to select the
Unit of Measurement and press the ENTER/EXIT button.
System Setup
1) Language
2) Unit of measure
3) Contrast
4) Exit

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2) From the Unit of Measure menu, use the SCROLL button to select
the desired measurement.
Unit of Measurement
English
Metric
3) Press the ENTER/EXIT button to save your selection and return to
the previous menu.
Contrast Adjustment
1) From the System Start-up menu, use the SCROLL button to select
Contrast and press the ENTER/EXIT button.
System Setup
1) Language
2) Unit of Measure
3) Contrast
4) Exit
2) From the CONTRAST menu, use the SCROLL button to adjust the
contrast. Contrast
Contrast 35%
3) Press the ENTER/EXIT button to save your settings and return to
the previous menu.
Exiting System Setup
Use the SCROLL button to select EXIT and press ENTER / EXIT button
to return to the start-up menu.
System Setup
1) Language
2) Unit of Measure
3) Contrast
4) Exit

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3.7 Vehicle Coverage
The CEOBD Code Reader is specially designed to work with all OBD II
compliant vehicles, including those equipped with the next- generation
protocol-Control Area Network (CAN).
A small number of 1994 and 1995 model year petrol powered vehicles
are OBD II compliant. To verify if a 1994 or 1995 vehicle is OBD II
compliant, check the Vehicle Emissions Control Information (VECI) label
which is located under the bonnet or by the radiator of most vehicles. If
the vehicle is OBD II compliant, the label will designate “OBD II
Certified”. Additionally, Government regulations mandate that all OBD II
compliant vehicles must have a “common” sixteen-pin Data Link
Connector (DLC). For your vehicle to be OBD II compliant it must have
a 16-pin DLC (Data Link Connector) under the dash and the Vehicle
Emission Control Information label must state that the vehicle is OBD II
compliant.
4. OBD II DIAGNOSTICS
When more than one vehicle control module is detected by the scan
tool, you will be prompted to select the module where the data may be
retrieved. The most often to be elected are the Powertrain Control
Module (PCM) and Transmission Control Module (TCM).
CAUTION: Don’t connect or disconnect any test equipment with the
ignition on or the engine running.
1) Turn the ignition off.
2) Locate the vehicle’s16-pin Data Link Connector (DLC).
3) Plug into the Scan Tool cable connectorto the DLC.
4) Turn the engine on. Engine can be off or running.
5) Press ENTER/EXIT button to enter the Diagnostic menu. A
sequence of messages displaying the OBDII protocols will be
observed on the display until the vehicle protocol is detected.
If the code reader fails to communicate with the vehicles ECU
(Engine Control Unit), a “LINKING ERROR!” message shows up on
the display.
6) Verify that the ignition is ON. Check that the code reader’s OBDII
connector is securely connected to the vehicle’s DLC.
7) Verify that the vehicle is OBDII compliant: Turn the ignition off and
wait for about 10 seconds. Turn the ignition back on and repeat the
procedure from step 5.
If the “LINKING ERROR!” message does not disappear, there may
be problems preventing the code reader communicating with the
vehicle. Contact your local dealer for assistance.

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8) After the code reader successfully links to the ECU, the diagnostic
menu will come up.
4.1 System Status
1) Use SCROLL button to select ‘System Status’from the Diagnostic
menu and press ENTER/EXIT button. The system status is
displayed (MIL status, DTC counts & monitor status) according to
the model of vehicle.
Diagnostic Menu
1) System Status
2) Read Codes
3) Erase Codes
4) Live Data
2) View the System Status contents on the screen.
System Status
1) Code Found 3
2) Monitors N/A 4
3) Monitors OK 2
4) Monitor INC 2
4) Press the ENTER/EXIT button to return to the previous menu.
4.2 Reading Codes
1). Use the SCROLL button to select ‘Read Codes’from the diagnostic
menu and press the ENTER/EXIT button.
Diagnostic Menu
1) System Status
2) Read Codes
3) Erase Codes
4) Live Data
If more than one module is detected, you will be prompted to select
a module before testing.
Control Module
1) Engine
2) Module $A4
3) Exit
Use the SCROLL button to select a module and press the
ENTER/EXIT button.

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2) View DTCs and their definitions on screen.
$09 Pd 1/6
P0115 Generic
Engine Coolant Temperature
Sensor 1 Circuit
The control module number, sequence of the DTCs, total number of
codes detected and type of codes (Generic or Manufacturer
specific, Stored or Pending codes) will be observed on the upper
right corner of the display.
3) If more than one DTC is found, use the SCROLL button as
necessary until all the codes have been shown up.
If no codes are detected, a “No codes are stored in the module!’
message is displayed on the screen.
If retrieved DTCs contain any manufacturer specific or enhanced
codes, the display indicates “Manufacturer Control”.
$09 4/8
P1324 Other
Manufacturer Control
4) Press the ENTER/EXIT button to return to the previous menu.
4.3 Erasing Codes
CAUTION: Erasing the Diagnostic Trouble Codes allows the Scan Tool
to delete not only the codes from the vehicle’s on-board computer, but
also “Freeze Frame” data and manufacturer specific enhanced data.
Also, the I/M Readiness Monitor Status for all vehicle monitors is reset
to Not Ready or Not Complete status. Do not erase the codes before
the system has been checked completely by a technician.
This function is performed with the key ON and engine off (KOEO). Do
not start the engine.
1) If you decide to erase the DTCs, use the SCROLL button to select
the ERASE codes from the Diagnostics menu by pressing the
ENTER/EXIT button.

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Diagnostic Menu
1) System Status
2) Read Codes
3) Erase Codes
4) Live Data
2) A warning message comes up asking for your confirmation.
Erase Codes
Erase trouble codes
Are you sure?
YES NO
3) If you do not want to proceed with erasing the codes, press the
ENTER/EXIT button to erase.
If the codes are cleared successfully, an “ERASE DONE” message
will show on the display. If the codes are not cleared, “ERASE
FAILURE” is displayed. The message, “TURN KEY ON WITH
ENGINE OFF” message is displayed.
4) Wait a few seconds or press any key to return to the main
diagnostic menu.
If you do wish to erase the codes, then press SCROLL button to
select NO and press ENTER/EXIT. A command cancelled massage
shows up.
Press any button to return to the diagnostic menu.
4.4 Viewing Live Data
1) To view live data use the SCROLL button to select View Live Data
from Diagnostic Menu and press the ENTER/EXIT button.
Diagnostic Menu
1) System Status
2) Read Codes
3) Erase Codes
4) Live Data
2) Wait a few seconds while the scan tool validates the PID map.
Live data
Reading PID_01
Please Wait-

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3) View the PIDs on the screen. Use the SCROLL button for more
PIDs on the next screen.
Live Data
DTC_CNT 6
FUELSYS1 0
FUELSYS2
LOAD_PCT(%) 0.0
4) Press ENTER/EXIT button to return to the previous menu.
4.5 Viewing Freeze Frame Data
1) To view freeze frame, use the scroll button to select View Freeze
Frame from the diagnostic menu and press the ENTER/EXIT
button.
Diagnostic Menu
5) View Freeze Frame
6) I/M Readiness
7) Vehicle Info
8) Exit
If more than one module is detected, you will be prompted to select
a module before testing.
Control Module
Engine
Module $A4
Exit
Use the SCROLL button to select a module and press the
ENTER/EXIT button.
2) Wait a few seconds while the code reader validates the PID Map.
View Freeze Frame
Reading PID.01
Please Wait-
3) If the retrieved information covers more than one screen, use the
SCROLL button as necessary, until all data has been displayed.

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View Freeze Frame
DTCFRZF P2770
FUELSYS1 OL
FUELSYS2 N/A
LOAD_PCT (%) 0.0
The number “x/x” to the upper right-hand corner of the screen indicates
total number of screens the retrieved frame covers and sequence of
currently displayed data.
If there is no freeze frame data available, an advisory message “No
Freeze Frame Data Stored!” shows on the display.
4) Press ENTER/EXIT to return to the Diagnostic menu.
4.6 Retrieving I/M Readiness Status
The I/M Readiness function is used to check the operations of the
Emission System on OBDII compliant vehicles. It is an excellent
function to use prior to having a vehicle inspected for compliance to a
national emissions program. Some of the latest vehicle models may
support two types of I/M Readiness tests.
A.-Since DTCs Cleared –indicates status of monitors since the
beginning of the current drive cycle.
B.-This Drive Cycle –indicates status of monitors since the beginning of
the current drive cycle.
An I/M Readiness Status result of “NO” does not necessarily indicate
that the vehicle being tested will fail the state I/M inspection. For some
states, one or more such monitors may be allowed to be “Not Ready” to
pass the emissions inspection.
“OK”—indicates that a particular monitor being checked has
completed its diagnostictesting;
“INC”—indicates a particular monitor being checked has not
completed its diagnostic testing;
“N/A”—The monitor is not supported on that vehicle.
1) Use the SCROLL button to select I/M Readiness from Diagnostics
menu and press ENTER/EXIT
. Diagnostic Menu
5) View Freeze Frame
6) I/M Readiness
7) Vehicle Info
8) Exit

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If more than one module is detected, you will be prompted to select
a module before the test.
. Control Module
Engine
Module $A4
Exit
Use the SCROLL button to select a module and press the
ENTER/EXIT button.
2) Wait a few seconds while the code reader validates the PID MAP.
. I/M Readiness
Reading PID.01
-Please Wait-
3) If the vehicle supports both types of tests, then both types show on
the screen for selection
I/M Readiness
Since DTCs Cleared
This Drive Cycle
Exit
4) Use the SCROLL button to view the status of the ‘MIL’light
(“ON” or “OFF) and the following monitors:
Misfire monitor—Misfire monitor
Fuel System Mon --Fuel SystemMonitor
Comp. Component--Comprehensive Components Monitor
EGR--EGR SystemMonitor
Oxygen Sens Mon--O2Sensors Monitor
Catalyst Mon--Catalyst Monitor
EVAP System Mon--Evaporative SystemMonitor
Oxygen Sens Htr--O2Sensor Heater Monitor
Sec Air System-- SecondaryAir Monitor
HTD--Heated Catalyst Monitor
A/C Refrig Mon--A/C System Monitor

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Since DTCs Cleared
MIL Status OFF
Misfire Monitor OK
Fuel System Mon. OK
Comp. Component OK
5) If the vehicle supports readiness test of “This Drive Cycle”, a
screen of the following will be displayed:
This Drive Cycle
MIL Status ON
Misfire Monitor OK
Fuel System Mon. OK
Comp. Component OK
The number “x/x” to the upper right-hand corner of the screen
indicates the total number of screens the retrieved data cover and
sequence of currently displayed data.
6) Press ENTER/EXIT button to return to the previous menu.
4.7 Viewing the VIN Number
The ‘Vehicle Info’function allows retrieval of the Vehicle Identification
No. (VIN), Calibration ID Nos, (CINs), Calibration Verification Nos
(CVNs) and in-use Performance Tracking on y2000 and newer vehicles
that support Mode 9.
1) Use the SCROLL button to select Vehicle Info from the Diagnostic
Menu and press the ENTER/EXIT button.
Diagnostic Menu
5) View Freeze Frame
6) I/M Readiness
7) Vehicle Info
8) Exit
2) Wait a few seconds or press ENTER/EXIT button to continue.
Vehicle Info
Turn Key On
With engine off!
Press (Enter) to con.
If the vehicle does not support this mode, a “The selected mode is
not supported!” message shows on the display.