Autel MD802 user manual (download)

Autel MD802 user manual:

http://www.eobdtool.co.uk/upload/pro/autel-md802-all-systems-user-manual.pdf

Table of Contents

1. SAFETY PRECAUTIONS AND WARNINGS

.......................................................................... 1

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

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

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

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

2.4 OBD II READINESS MONITORS ........................................................................ 4

2.5 OBD II MONITOR READINESS STATUS ............................................................. 5

2.6 OBD II DEFINITIONS ........................................................................................ 6

3. USING THE SCAN TOOL .............................................................................. 8

3.1 TOOL DESCRIPTION .......................................................................................... 8

3.2 SPECIFICATIONS ................................................................................................ 9

3.3 ACCESSORIES INCLUDED ................................................................................ 10

3.4 KEYBOARD ...................................................................................................... 10

3.5 POWER ............................................................................................................ 10

3.6 SYSTEM SETUP ................................................................................................ 11

3.7 VEHICLE COVERAGE ...................................................................................... 15

3.8 PRODUCT TROUBLESHOOTING ....................................................................... 16

4. PLAYBACK DATA ....................................................................................... 17

4.1 REVIEWING DATA ........................................................................................... 17

4.2 DELETING DATA ............................................................................................. 18

4.3 PRINTING DATA .............................................................................................. 18

5. DIAGNOSTICS .............................................................................................. 19

5.1 ENTERING VEHICLE INFORMATION ................................................................ 19

5.2 DIAGNOSTIC TEST ........................................................................................... 24

5.3 DIAGNOSTIC OPERATION ................................................................................ 28

6. OBDII DIAGNOSTICS ................................................................................. 35

6.1 READ CODES .................................................................................................... 36

6.2 ERASE CODES ................................................................................................. 39

6.3 LIVE DATA....................................................................................................... 41

6.4 FREEZE FRAME ................................................................................................ 47

6.5 RETRIEVING I/M READINESS STATUS ............................................................. 48

6.6 O2 MONITOR TEST .......................................................................................... 51

6.7 ON-BOARD MONITOR TEST ............................................................................. 52

6.8 COMPONENT TEST ........................................................................................... 55

6.9 VIEWING VEHICLE INFORMATION ................................................................... 56

6.10 MODULES PRESENT ....................................................................................... 58

6.11 DTC LOOKUP ................................................................................................ 59

7. OIL RESET .................................................................................................... 61

7.1. GENERAL INFORMATION ................................................................................ 61

7.2. RESET OPERATION.......................................................................................... 61

8. EPB .................................................................................................................. 69

8.1. EPB SAFETY ................................................................................................... 69

8.2. EPB MAINTENANCE ....................................................................................... 69

8.3. ABS MAINTENANCE ....................................................................................... 78

9. PRINT DATA ................................................................................................. 81

10. SOFTWARE UPDATE .................................................................................. 83

10.1. REGISTER THE TOOL ............................................................................. 83

10.2. UPDATE PROCEDURE ............................................................................. 84

10.3. VIEW OR DELETE PROGRAMS ............................................................... 86

11. WARRANTY AND SERVICE ...................................................................... 88

11.1. LIMITED ONE YEAR WARRANTY........................................................... 88

11.2. SERVICE PROCEDURES .......................................................................... 88

1. 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 in front of the drive wheels and never leave the 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 the 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 while the

ignition is on or the engine is running.

 Keep the scan tool dry, clean, free from oil/water or 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) II

The first generation of On-Board Diagnostics (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 On-Board Diagnostic system increased, a new generation

of On-Board Diagnostic 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:

1) Whether the Malfunction Indicator Light (MIL) is

commanded 'on' or 'off';

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

3) 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

intended to provide you with a guide as to where a fault might be

occurring within a vehicle. OBD II Diagnostic Trouble Codes

consists 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: 3

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. If Data Link

Connector is not located under dashboard, a label should be there

telling location. For some Asian and European vehicles, the DLC is

located behind the ashtray and the ashtray must be removed to access

the connector. If the DLC cannot be found, refer to the vehicle’s

service manual for the location.

2.4 OBD II Readiness Monitors

An important part of a vehicle’s OBD II 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 OBD II 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 OBD II 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 5

monitors are termed non-continuous monitors. For different ignition

type engines, the available monitors are different too.

The following monitors are to be used for spark ignition engines

only:

1) EGR System

2) O2 Sensors

3) Catalyst

4) Evaporative System

5) O2 Sensor Heater

6) Secondary air

7) Heated Catalyst

The following monitors are to be used for compression ignition

engines only:

1) EGR System

2) NMHC Catalyst

3) NOx aftertreatment

4) Boost pressure system

5) Exhaust gas sensor

6) PM filter

2.5 OBD II Monitor Readiness Status

OBD II 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 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 power-train 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, 6

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.

2.6 OBD II Definitions

Power-train Control Module (PCM) -- OBD II 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 onboard diagnostic system can not turn

the MIL off until 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 7

of the enabling criteria. Drive cycles vary among vehicles and for

each monitor in any particular vehicle.

OBD II 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.

Freeze Frame Data -- When an emissions related fault occurs, the

OBD II system not only sets a code but also records a snapshot of the

vehicle operating parameters to help in identifying the problem. This

set of values is referred to as Freeze Frame Data and may include

important engine parameters such as engine RPM, vehicle speed, air

flow, engine load, fuel pressure, fuel trim value, engine coolant

temperature, ignition timing advance, or closed loop status.

3. Using the Scan Tool

3.1 Tool Description

1) CONNECTOR -- Connects the scan tool to the vehicle’s Data

Link Connector (DLC).

2) SD Card Slot – Holds the System SD card.

3) LCD DISPLAY -- Indicates test results. TFT color display (320

x 240 dpi).

4) FUNCTION BUTTON – Corresponds with “buttons” on

screen for executing commands. 9

5) ESC BUTTON -- Cancels a selection (or action) from a

menu or returns to the previous screen.

6) HELP BUTTON -- Provides help information and Code

Breaker function.

7) UP SCROLL BUTTON -- Moves up through menu and

submenu items in menu mode. When more than one screen of

data is retrieved, moves up through the current screen to the

previous screens for additional data. When looking up DTC, it is

used to change value of selected character.

8) DOWN SCROLL BUTTON -- Moves down through

menu and submenu items in menu mode. When more than one

screen of data is retrieved, moves down through the current

screen to next screens for additional data. When looking up DTC,

it is used to change value of selected character.

9) LEFT SCROLL BUTTON -- When look up DTC

definitions, moves to previous character and views additional

information on previous screens if DTC definition covers more

than one screen; views previous screen or previous frames of

recorded data. It is also used to view previous trouble code

when viewing DTCs.

10) RIGHT SCROLL BUTTON -- When look up DTC

definitions, moves to next character and view additional

information on next screens if DTC definition covers more than

one screen; views next screen or next frames of recorded data..

It is also used to view next trouble code when viewing DTCs.

11) OK BUTTON -- Confirms a selection (or action) from a

menu.

12) External DC Power Port – Connects the 12 volt power adapter

to power the tool when disconnected from the vehicle.

13) USB CONNECTOR -- Connects the scan tool to the PC for

printing.

3.2 Specifications 10

1) Display: TFT color display (320 x 240 dpi)

2) Operating Temperature: 0 to 60°C (32 to 140 °F)

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

4) External Power: 12.0 to 18.0 V power provided via vehicle

battery or adapter.

5) Dimensions:

 Length Width Height

212 mm (8.35”) 110.5 mm (4.35”) 37.5 mm (1.48”)

6) Weight: 0.28kg(without wire) 0.484kg(with wire)

3.3 Accessories Included

1) User‟s Manual -- Instructions on tool operations.

2) CD -- Includes user’s manual, MaxiLink update software, and

etc.

3) OBD2 cable -- Provides power to tool and communicates

between tool and vehicle.

4) USB cable -- Used to upgrade the scan tool, and to print

retrieved data.

5) SD card -- Contains the scan tool’s operation software and

applications.

6) Carry case -- A nylon case to store the scan tool when not in use.

3.4 Keyboard

No solvents such as alcohol are allowed to clean the keypad or display.

Use a mild nonabrasive detergent and a soft cotton cloth. Do not soak

the keypad as the keypad is not waterproof.

3.5 Power

Before using the scan tool, you must provide power to the scan tool.

There are two methods for providing power to the scan tool.

 DC external power adapter.

 Cable connection to vehicle. 11

During vehicle testing, power for the scan tool is usually provided

through the vehicle cable connection. When the scan tool is not

connected to a vehicle, the scan tool can be powered with an AC/DC

external power adapter.

While the scan tool is powered via the vehicle Data Link Connector

(DLC), just follow the steps below to turn on the scan tool:

1) Connect the Cable to scan tool.

2) Find DLC on vehicle.

 A plastic DLC cover may be found for some vehicles and you

need to remove it before plugging the OBD2 cable.

3) Plug the cable to the vehicle’s DLC.

4) Power up the scan tool , and wait for the Main Screen to

appear.(Figure 3.1)

Figure 3.1

3.6 System Setup

The System Setup functions allow you to adjust default settings and

view information about the scan tool.

1) Language: Selects the desired language.

2) Unit of measure: Sets the unit of measure to English or Metric.

3) Beep Set: Turns on/off beep.

4) LCD Test: Checks if the LCD display is working properly.

5) Key Test: Checks if the keyboard is working properly. 12

6) About: Provides information of the scan tool.

 Settings of the unit will remain until change to the existing

settings is made.

To enter the Setup menu

From the Main Screen, use LEFT/RIGHT scroll button to select

Setup, and press the OK button. Following the instructions to do

adjustments and settings could make your diagnosis more

conveniently and easily. (Figure 3.2)

Figure 3.2

Language Setup

 English is the default language.

1) From System Setup screen, use the UP/DOWN scroll button

and LEFT/RIGHT scroll button to select Language, and press

the OK button.

2) Use the UP/DOWN scroll button to select the desired language

and press the OK button to save your selection and return to

previous screen. (Figure 3.3) 13

Figure 3.3

Unit of Measure

 Metric is the default measurement unit.

1) From System Setup screen, use the LEFT/RIGHT scroll button

to select EN/METRIC unit and press the OK button.

2) From Unit of Measure screen, use the LEFT/RIGHT scroll

button to select the desired unit of measurement. (Figure 3.4 )

Figure 3.4

3) Press the OK button to save your selection and return to previous

menu. Or, press the ESC button to exit without saving.

Beep Set

 The default setting is Beep On. 14

1) From System Setup screen, use the UP/DOWN scroll button

and LEFT/RIGHT scroll button to select Beep and press the

OK button.

2) From Beep Set menu, use the LEFT/RIGHT scroll button to

select ON or OFF to turn on/off the beep. (Figure 3.5)

Figure 3.5

3) Press the OK button to save your selection and return to

previous menu. Or, press the ESC button to exit without saving.

Key Test

The Key Test function checks if the keyboard is working properly.

1) From System Setup screen, use the UP/DOWN scroll button

and LEFT/RIGHT scroll button to select Key Test, and press

the OK button.

2) Press any key to start test. When you press a key, the edge around

corresponding key on the screen should turn to red. Otherwise,

the key is not functioning properly.

3) Double press ESC to return to previous menu.

LCD Test

The LCD Test function checks if the LCD display is working

normally. 15

1) From System Setup screen, use the UP/DOWN scroll button

and LEFT/RIGHT scroll button to select LCD Test, and press

the OK button.

2) Look for missing spots in the red, green, blue, black and white

LCD display.

3) When completed, press the ESC button to exit.

About

The About function allows viewing of some important information

such as serial number and software version number of the scanner.

1) From System Setup screen, use the UP/DOWN scroll button

and LEFT/RIGHT scroll button to select About and press the

OK button; wait for the About screen to appear.

2) View tool information on screen. (Figure 3.6) Press the ESC

button to exit without saving.

Figure 3.6

3.7 Vehicle Coverage

On the basis of all OBD II compliant vehicles, including those

equipped with universal protocol -- Control Area Network (CAN),

MaxiDiag

 Elite Series Scanner expands vehicle system coverage and

offers more diagnostic power to the vehicle technicians. Featuring

expanded global vehicle coverage, the scan tool offers technicians a

significant improvement on model years covered by supported

manufactures. In addition to adding new vehicle coverage through

2012/2011, we’ve also worked backwards to include non-OBDII 16

vehicles, which can be diagnosed by setting up with optional OBDI

adaptors.

For a complete listing of all the added vehicle coverage, download a

copy of the official MaxiDiag

 Elite Software Release Note.

3.8 Product Troubleshooting

Vehicle Linking Error

A communication error occurs if the scan tool fails to communicate

with the vehicle’s ECU (Electronic Control Unit). You need to do

the following to check up:

 Verify that the ignition is ON.

 Check if the scan tool’s connector is securely

connected to the vehicle’s DLC.

 Turn the ignition off and wait for about 10 seconds. Turn the