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OWNER S MANUAL
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OBD2 CODE READER
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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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OBD2 CODE READER
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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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P1479 Trans Fan Relay Circ
P1480 PCV Solenoid Circ
P1481 EATX Misfire RPM Signal out of Range
P1482 Catalyst Temp Sens Circ Shorted Low
P1483 Catalyst Temp Sens Circ Shorted Hi
P1484 Catalytic Conv Overheat Detected
P1485 Air Inj Solenoid Circ
P1486 Eva Leak Monitor Pinched Hose Found
P1487 Hi Speed Radiator Fan CTRL Relay Circ
P1488 Auxiliary 5V Supply Output Too Low
P1489 Hi Speed Fan CTRL Relay Circ
P1490 Low Speed Fan CTRL Relay Circ
P1491 Radiator Fan Ctrl Relay Circ
P1492 Ambient/Battery Temp Sens Volts Too Hi
P1493 Ambient/Battery Temp Sens Volts Too Low
P1494 Leak Detection Pump Switch or Mechanical Fault
P1495 Leak Detection Pump Solenoid Circ
P1496 5V Supply, Output Too Low
P1498 Hi Speed Radiator Fan Ground CTRL Relay Circ
P1499 Open or shorted condition detected in the hydraulic cooling fan
solenoid control
P1508 IAC Sys Low RPM
P1509 IAC Sys Hi RPM
P1594 Charging Sys Voltage Too Hi
P1595 Speed Ctrl Solenoid Circs
P1596 Speed Ctrl Switch Always Hi
P1597 Speed Ctrl Switch Always Low
P1598 A/C Press Sens Volts Too Hi
P1599 A/C Press Sens Volts Too Low
P1602 PCM Not Programmed
P1621 PCM Memory Perf or Write
P1626 Vehicle Theft Sys Ctrl Loss of Data
P1627 A/D Perf
P1630 Vehicle Theft Sys PCM in Learn Mode
P1631 Vehicle Theft Sys Improper Password
P1635 5V Ref Circ
CODE DEFINITION
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