Performance Tool MaxiScan MS300 Manuel utilisateur

CONTENTS

SAFETY PRECAUTIONS AND WARNINGS.......................................................... 1

1GENERAL INFORMATION ...................................................................... 2

ON-BOARD-DIAGNOSTICS (OBD) II............................................................... 2

DIAGNOSTIC TROUBLE CODES (DTCS) .......................................................... 2

LOCATION OF THE DATA LINK CONNECTOR (DLC)............................................ 3

OBDII READINESS MONITORS ..................................................................... 3

OBDII MONITOR READINESS STATUS............................................................ 4

OBDII TERMINOLOGY................................................................................. 5

2PRODUCT INFORMATION...................................................................... 7

TOOL DESCRIPTION .................................................................................... 7

PRODUCT SPECIFICATIONS........................................................................... 7

PRODUCT FEATURES................................................................................... 8

VEHICLE COVERAGE ................................................................................... 8

3OPERATING INSTRUCTIONS................................................................10

READ CODES:...........................................................................................10

ERASE CODES ..........................................................................................12

RETRIEVEI/MREADINESS STATUS...............................................................13

VIEW VIN NUMBER ....................................................................................14

RESCAN DATA...........................................................................................15

4DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS.............................16

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:

Always perform automotive testing in a safe environment.

Wear safety eye protection that meets ANSI standards.

Keep clothing, hair, hands, tools, test equipment, etc., away from all

moving or hot engine parts.

Operate the vehicle in a well-ventilated work area; Exhaust gases are

poisonous.

Put blocks on drive wheels and never leave vehicle unattended while

running tests.

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.

Put transmission in PARK (for automatic transmission) or NEUTRAL

(for manual transmission) and make sure the parking brake is engaged.

Keep a fire extinguisher suitable for gasoline/chemical/ electrical fires

nearby.

Don’t connect or disconnect any test equipment with ignition on or

engine running.

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.

1 General Information

On-Board-Diagnostics (OBD) II

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 evolved and the desire to improve the OBD I system 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 valuable information:

Whether the Malfunction Indicator Light (MIL) is commanded ‘on’or ‘off’;

Which, if any, Diagnostic Trouble Codes (DTCs) are stored;

Readiness Monitor status.

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 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 the control system which 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:

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

cannot be found.

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 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

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

vehicle owner’s manual.

OBD II Terminology

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 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

can not turn the MIL off until the necessary repairs are completed or the

condition no longer exists.

DTC –Diagnostic Trouble Codes (DTC) that identifies 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

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 onboard 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.

2 Product Information

Tool Description

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 through menu items or cancel an

operation.

4. OBD II CONNECTOR –connects the Code Scanner to the

vehicle’s Data Link Connector (DLC).

Product Specifications

1) Display: backlit LCD, 2 lines, 8 characters each

2) Operating Temperature:0to 50°C (32 to 122 F°)

3) Storage Temperature:-20 to 70°C (-4 to 158 F°)

4) Power:DC12Vprovided via the vehicle’s battery

5) Dimensions:

Length: 113 mm (4.4”)Width: 74 mm (2.9”) Height: 21 mm (0.83”)

6) Weight: 250g (8.9 oz)

Product Features

Works with all 1996 and newer cars & light trucks that are OBD II

compliant (including the CAN, VPW, PWM, ISO and KWP 2000

protocols)

Reads and clears generic and manufacturer specific Diagnostic

Trouble Codes (DTCs) and turns off check engine light

Supports multiple trouble code requests: generic codes, pending codes

and manufacturer’s specific codes

Reviews the emission readiness status of OBD monitors

Retrieves VIN (Vehicle Identification No.) on 2002 and newer vehicles

that support Mode 9

Determines the malfunction indicator lamp (MIL) status Easy to use with

one plug-in; Highly reliable and accurate Easy-to-read crystal-clear

backlit 2-line LCD display

Stand-alone unit with no need for an additional laptop computer to

operate

Small in size and conveniently fits in your palm

Safely communicates with the on-board computer

No batteries needed--powered via detachable OBD II cable

Vehicle Coverage

The MaxiScan OBD II Scan Tool is specially designed to work with all OBD

II compliant vehicles, including those equipped with the next-generation

protocol-Control Area Network (CAN). It is required by EPA that All 1996

and newer vehicles (cars and light trucks) sold in the United States must be

OBD II compliant and this includes all Domestic, Asian and European

vehicles.

A small number of 1994 and 1995 model year gasoline 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 hood 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.

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