Clarke COBDIIR-2 User manual

USER INSTRUCTIONS
ORIGINAL INSTRUCTIONS DL0623
ENGINE FAULT CODE READER
MODEL NO: COBDIIR-2
PART NO: 4501139

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INTRODUCTION
Thank you for purchasing this CLARKE Engine and Transmission Fault Code
Reader.
Please read this manual thoroughly, before attempting to operate and
carefully follow all instructions given.
It is vitally important that ALL precautions are taken, as specified, which will not
only provide protection for yourself and that of others around you, but will also
ensure that the code reader will give you long and satisfactory service.
GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period of
12 months from the date of purchase. Please keep your receipt 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 the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.
If disposing of this product or any damaged components, do not dispose of
with general waste. This product contains valuable raw materials. Metal
products should be taken to your local civic amenity site for recycling of metal
products.

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PRODUCT OVERVIEW
1 2.4” TFT LCD Colour Display 6 Enter Button
2 Green LED: Indicates correct engine
operation, no Diagnostic Trouble
Code (DTC)
7 Exit Button
3 Yellow LED: Indicates a possible
problem. Some diagnostics could not
be performed and/or a DTC is
pending
8 Scroll Up Button
4 Red LED: Indicates a problem with the
engine. The MIL (Malfunction
Indicator Light) may be on.
9 Scroll Down Button
5 One Click Function Key 10 OBDII 16 Pin Connector

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SPECIFICATIONS
FUNCTION DESCRIPTION
1. Dual system diagnostic, optional engine and transmission.
2. Quickly indicate engine faults with green/yellow/red LED indicators as fault
lights
3. You can read or clear the engine fault code and view DTC definition.
4. Display of sensor data stream information, supporting 249 types of
parameters
5. You can view freeze frame data and I/M status information.
6. You can read vehicle information:
• Vehicle Identification Number (VIN)
• Calibration Identification Number (IDs)
• Calibration Verification Number (CVNs)
7. Multi Language (English, Spanish, French, German, Polish, Finnish, Italian,
Dutch & Russian).
8. Codes Compliant: OBDII, EOBD & JOBD
9. Protocols Supported: SAE J1850 VPW, SAE J1850 PWM, ISO 9141-2,
ISO 14230-4(KWP FAST), ISO 14230-4(KWP 5BAUD), ISO 15765-4(CAN 11/250),
ISO 15765-4(CAN 11/500), ISO 15765-4(CAN 29/250), ISO 15765-4(CAN 29/
500).
Model Number COBDIIR-2
Operating Voltage 8V - 25V
Operating Current 52mA
Operating Temperature -20°C to 70°C
Storage Temperature -30°C to 80°C
Display 2.4” TFT Colour Screen
Support Data Stream Type 249 Sensor Parameters
Fault Code Analysis Quantity 16929
Dimensions (HxWxD) 24mm x 84mm x 131mm
Weight 198g

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SAFETY PRECAUTIONS
PLEASE READ BEFORE USING THIS UNIT
1. ALWAYS perform automotive testing in a safe environment.
2. Keep clothing, hair, hands, tools, test equipment, etc, away from all
moving or hot engine parts.
3. Operate the vehicle in a well-ventilated work area; Exhaust gases are
poisonous.
4. Put chocks under drive wheels and NEVER leave the vehicle unattended
while running tests.
5. ALWAYS 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.
6. Put transmission in PARK (for automatic transmission) or NEUTRAL (for manual
transmission) and make sure the parking brake is engaged.
7. Keep a fire extinguisher suitable for gasoline/chemical/electrical fires
nearby.
8. DO NOT connect or disconnect any test equipment with ignition on or
engine running.
CARE AND MAINTENANCE
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 code reader,
when necessary.
Keep the 16 pin connector clean and the cable tidy.
ALWAYS check for splits or cuts in the cable.

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GENERAL INFORMATION
VEHICLE COVERAGE
The OBDII Code Reader is specially designed to work with all OBDII compliant
vehicles, including those equipped with the next-generation protocol --
Control Area Network (CAN). All 2000 and later vehicles are OBDII
compliant and this includes all USA, Asian and European vehicles.
A small number of 1994 and 1995 model year petrol vehicles are OBDII
compliant. To verify if a 1994 or 1995 vehicle is OBDII 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 OBDII compliant, the
label will designate “OBDII Certified”. Additionally, regulations mandate that
all OBDII compliant vehicles must have a “common” sixteen-pin Data Link
Connector (DLC).
For your vehicle to be OBDII, EOBD or JOBD 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 OBDII compliant.
OBDII COMPLIANT CAR MANUFACTURERS
For a full list of make and models of compliant manufacturers download the
spreadsheet using the following website or QR code.
http://www.bit.ly/cobdiir2
DIAGNOSTIC TROUBLE CODES (DTC)
OBDII Diagnostic Trouble Codes 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. OBDII 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 is an example to illustrate the
structure of the digits:

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NOTE: Manufacturer Specific Codes(x1xxx): This is where the vehicle
manufacturer feels that a code is not available within the generic list.
The definitions for these are set by the vehicle manufacturer.
OBDII 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 OBDII system. They run periodic tests on specific
systems and components to ensure that they are performing within allowable
limits.
Currently, there are eleven OBDII Readiness Monitors (or I/M Monitors) defined.
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 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 Monitors (CCM)
h

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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. O2 Sensors
3. Catalyst
4. Evaporative System
5. O2 Sensor Heater
6. Secondary Air
7. Heated Catalyst
8. A/C System
OBDII MONITOR READINESS STATUS
OBDII systems must indicate whether or not the vehicle's PCM 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 vehicle
owner’s manual.

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OBDII DEFINITIONS
POWERTRAIN CONTROL MODULE (PCM)
OBDII 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 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 can
not turn the MIL off until the necessary repairs are completed or the condition
no longer exists.
DIAGNOSTIC TROUBLE CODES (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.
OBDII DRIVE CYCLE
A specific mode of vehicle operation that provides condition required to set all
the readiness monitors applicable to the vehicle to the ready condition. The
purpose of completing an OBDII 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.
FREEZE FRAME DATA
When an emission related fault occurs, the OBDII system not only sets a code
but also records a snapshot of the vehicle operating parameters to help in

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identifying the problem. This set of values is referred to as Freeze Frame Data
and may include important engine parameters such as RPM, vehicle speed,
air flow, engine load, fuel pressure, fuel trim value, engine coolant
temperature, ignition timing advance or closed loop status.
OBDII MODES OF OPERATION
MODE BYTE
The first byte in the system is the mode number. There are 9 modes for
diagnostic requests, so this first byte is from 1 to 9. The first byte in the response
data bytes is the same number plus 64. For example, a mode 1 request would
have the first data byte = 1, and the response would have the first data byte =
65. Here is a brief description of the modes:
1. Mode $01 - Identifies the Powertrain information and shows current data
available to the scan tool. This data includes: DTCs set, status of onboard
tests and vehicle data such as engine RPM, temperatures, ignition
advance, speed, air flow rates and closed loop status for fuel systems.
2. Mode $02 - Displays Freeze Frame Data. Dame data as in Mode 1, but it
captured and stored when a malfunction occurred and a DTC was set.
Some of the PIDs for mode 1 are not implemented in this mode.
3. Mode $03 - Displays the type of Powertrain or emission related DTCs stored
by a 5 digit code identifying the faults. There may be more than one
response message if there are more trouble codes than will fit in the data
bytes of the response message, or if there are more than one ECU
computer responding.
4. Mode $04 - Used to clear DTCs and Freeze Frame Data. This clears all
diagnostic trouble codes that may be set including Freeze Frame Data
and Readiness Monitors.
5. Mode $05 - Oxygen Sensor Test Results. This mode displays the oxygen
sensor monitor screen and the test results gathered about the oxygen
sensor. There are ten numbers available for diagnostics:
• $01 - Rich-to-Lean O2 sensor threshold voltage
• $02 - Lean-to-Rich O2 sensor threshold voltage
• $03 - Low sensor voltage threshold for switch time measurement
• $04 - High sensor voltage threshold for switch time measurement
• $05 - Rich-to-Lean switch time in ms
• $06 - Lean-to-Rich switch time in ms
• $07 - Minimum voltage for test
• $08 - Maximum voltage for test
• $09 - Time between voltage transitions in ms