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Table Of Contents
1. INTRODUCTION
1.1 About OBD2 Code Reader----------------------------------------------------------3
1.2 Safety Precautions and Warnings--------------------------------------------------3
2. GENERAL INFORMATION
2.1 On-Board-Diagnostics (OBD) 2------------------------------------------------------4
2.2 Diagnostic Trouble Codes (DTCS) ------------------------------------------------5
2.3 Location Of the Data Link Conector (DLC) ------------------------------------6
2.4 OBD2 Readiness Monitors -----------------------------------------------------------6
2.5 OBD2 Monitor Readiness Status---------------------------------------------------8
2.6 OBD2 Terminology-----------------------------------------------------------------------8
3. PRODUCT INFORMATION
3.1 Tool Descri ption --------------------------------------------------------------------------10
3.2 Product Specifications -----------------------------------------------------------------10
3.3 Product Features-------------------------------------------------------------------------10
3.4 Vehicle Coverage ------------------------------------------------------------------------11
4. OPERATING INSTRUCTIONS
4.1 Reading Codes ---------------------------------------------------------------------------12
4.2 Erasing Codes----------------------------------------------------------------------------14
4.3 Retrieving I/M Readiness Status --------------------------------------------------15
4.4 Viewing VIN Number--------------------------------------------------------------------17
4.5 Rescanning Data-------------------------------------------------------------------------17
5. DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS
5.1 OBD2 Generic DTC Definitions-----------------------------------------------------18
5.2 Part Of OBD2 Manufacturer Specific DTC Definitions -------------------47
6. WARRANTY AND SERVICE
6.1 Limited One Year Warranty ----------------------------------------------------------55
6.2 Service Procedures --------------------------------------------------------------------55
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1. INTRODUCTION
1.1 About OBD2 Code Reader
This powerful tool will help you take charge of your vehicle's
maintenance and servicing needs. Today vehicles use Computer Control
Systems to ensure peak per-formance and fuel-efficiency while reducing
pollutants in the vehicle's emissions. These systems also have the
ability to perform self-testing and diagnose various vehicle systems and
components, and provide valuable information to aid in servicing and
repair. However, these sophisticated systems often required expensive
tools and test equi pment in order to retrieve this information. Until now,
consumers had to rely on professional service technicians to maintain their
vehicles in top condition.
OBD2 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, 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 Scan
Tool, read this instruction manual first and observe the following safety
precautions at a minimum whenever working on a vehicle:
1. Always perform automotive testing in a safe environment.
2. Wear safety eye protection that meets ANSI standards.
3. Keep clothing, hair, hands, tools, test equi pment, 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 on drive wheels and never leave 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. Put transmission in PARK (for automatic transmission) or NEUTRAL (for
manual transmission) and make sure the parking break is engaged.
8. Keep a fire extinguisher suitable for gasoline/chemical/electrical fires
nearby.
9. Don't connect or disconnect any test equi pment with ignition on or
engine running.
10. Keep the Scan Tool dry, clean and free from oil, water and grease.
Use a mild detergent on a clean cloth to clean the outside of the Scan
Tool, 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
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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, Diagnostic Trouble Codes (DTCs) are stored;
Readiness Monitor status.
2.2 Diagnostic Trouble Codes (DTCs)
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 mig ht 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
below is an example to illustrate the structure of the digits:
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Systems
B=Body
C=Chassis
P=Powertrain
U=Network
Identifies what section
of the systems is
malfunctioning
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
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
P 0 2 0 1
DTC Example
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. For some Asian and European vehicles,
the DLC is located behind the ashtray and the ashtray must be removed
to access the connector. Refer to the vehicle's service manual for the
location if the DLC can not be found.
2.4 OBD II Readiness Monitors
An important part of a vehicle's OBDII system is the Readiness
monitors, which are indicators used to find out if all of the emissions
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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 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 (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. O2 Sensors
3. Catalyst
4. Evaporative System
5. O2 Sensor Heater
6. Secondary air
7. Heated Catalyst
8. A/C system
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2.5 OBD II Monitor Readiness Status
OBD II 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 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 hig hway driving and stop and go, city
type driving, and at least one overnig ht-off period. For specific information
on getting your vehicle's OBD monitor system ready, please consult your
vehicle owner's manual.
2.6 OBD II Definitions
Powertrain Control Module (PCM)
--OBDII terminology for the on-
board computer that controls engine and drive train.
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Malfunction Indicator Light (MIL)
--Malfunction Indicator Lig ht (Service
Engine Soon, Check Engine) is a term used for the lig ht 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 lig ht, it
indicates that a problem has been detected and the vehicle should be
serviced as soon as possible. Under certain conditions, the dashboard
lig ht 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.
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 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
throug h 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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1.LCD DISPLAY
--Indicates test results. It is a backlit 2-line display with 8
characters on each line.
2. ENTER BUTTON
--Confirms a selection (or action) from a menu list, or
returns to the main menu.
3.SCROLL BUTTON
--Scrolls throug h 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, 2 lines, 8 characters, backlit
2. Operating Temperature: 0 to 50°C (-32 to 122 F°)
3. Storage Temperature: -20 to 70°C (-4 to 158 F°)
4. Power—provided via detachable heavy duty OBD II cable
5. Dimensions:
Length Width Heig ht
126 mm ( 5.0”) 78 mm ( 3.2”) 28mm (0.85”)
6. Weig ht: 200g (7.12 oz)
1
2
4
3
3. PRODUCT INFORMATION
3.1 Tool Description
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P1639 5V Ref Circ
P1641 MIL Ctrl Circ
P1643 Wait To Start Lamp Ctrl Circ
P1646 5V Ref (C) Circ
P1652 J1850 Comms Bus
P1653 EGR Vent Solenoid Ctrl Circ
P1654 Service Throttle Soon Lamp Ctrl Circ
P1655 EGR Solenoid Ctrl Circ
P1656 Wastegate Solenoid Ctrl Circ
P1680 Clutch Released Switch Circ
P1681 No I/P Cluster CCD/J1850 Messages Received
P1682 Charging Sys Voltage Too Low
P1683 Speed Ctrl Power Relay; or S/C 12v Driver CKT
P1684 Battery Disconnected in the last 50 Starts
P1685 Skim Invalid Key
P1686 No SKIM BUS Messages Received
P1687 No Cluster BUS Message
P1688 Internal Fuel Inj Pump Ctrller Failure
P1689 No Comm between ECM & Inj Pump Mod
P1690 CKP Sens Does Not Agree with ECM CKP Sens
P1691 Fuel Sys ESS RPM Error
P1692 DTC Set In ECM
P1693 DTC Detected in Companion JTEC Mod
P1694 No BUS Message Received from ECM Mod
P1695 No CCD/J1850 Messages from the Body Ctrl Mod.
P1696 PCM Failure EEPROM Write Denied
P1697 PCM Failure SRI Mile Not Stored
P1698 No CCD/J1850 Message From TCM/PCM
P1699 No CCD/J1850 Messages received from the Climate Control
Module(CCM)
P1719 Ski p Shift Solenoid Circ
P1740 TCC or O/D Solenoid Perf
P1756 Gov Press Not Equal to Target @ not15-20 PSI
P1757 Gov Press above 3 PSI in gear with 0 MPH
P1762 Gov Press Sens Offset Volts Too Low or Hi
P1763 Governor Press Sens Volts Too Hi
CODE DEFINITION
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