Autel MaxiService MST505 User manual

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. PRODUCT INFORMATION.............................................................................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............................................................................................. 1
4.1 REVIEWING DATA............................................................................................1
4.2 DELETING DATA...............................................................................................2
4.3 PRINTING DATA................................................................................................2
5. OBDII DIAGNOSTICS.......................................................................................1
5.1 READ CODES.....................................................................................................2
5.2 ERASE CODES...................................................................................................5
5.3 LIVE DATA........................................................................................................7
5.4 FREEZE FRAME.............................................................................................. 13
5.5 RETRIEVING I/M READINESS STATUS..........................................................14
5.6 O2 MONITOR TEST........................................................................................17

5.7 ON-BOARD MONITOR TEST..........................................................................18
5.8 COMPONENT TEST.........................................................................................21
5.9 VIEWING VEHICLE INFORMATION...............................................................22
5.10 MODULES PRESENT....................................................................................... 23
5.11 DTC LOOKUP.................................................................................................24
6. VW/AUDI/SEAT/SKODA DIAGNOSTICS...................................................26
6.1 READ CODES AND ERASE CODES.................................................................26
6.2 OIL RESET...................................................................................................... 32
6.3 EPB................................................................................................................. 40
7. PRINT AND UPDATE...................................................................................... 51
7.1 PRINT DATA....................................................................................................51
7.2 SOFTWARE UPDATE........................................................................................52
8. WARRANTY AND SERVICE.........................................................................57
8.1 LIMITED ONE YEAR WARRANTY.................................................................57
8.2 SERVICE PROCEDURES.................................................................................. 57

1
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
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.

4
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.

5
These 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
Thefollowingmonitorsaretobeusedforcompressionignition
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

6
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.
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

7
part 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.

8
3. Product Information
3.1 Tool Description
1) CONNECTOR -- Connects the scan tool to the vehicle’s Data
Link Connector (DLC).
2) LCD DISPLAY -- Indicates test results. TFT colo
r
displa
y
(320
x 240 dpi).
3) FUNCTION BUTTON – Corresponds with “buttons” on
screen for executing commands.

9
4) ESC BUTTON -- Cancels a selection (o
r
action) fro
m
a
menu or returns to the previous screen.
5) 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.
6) HELP BUTTON -- Provides help information and Code
Breaker function.
7) 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.
8) 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.
9) OK BUTTON -- Confirms a selection (o
r
action) fro
m
a
menu.
10) 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.
11) USB CONNECTOR -- Connects the scan tool to the PC for
printing.
12) MICRO SD CARD SLOT – Holds the Micro SD card.
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 (-4to 158 °F)
4) External Power: 12.0 to 18.0 V power provided via vehicle
battery.
5) Dimensions:
Length Width Height
199 mm (7.83”) 104.5 mm (4.11”) 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, Maxi PC Suite software, and etc.
3) OBD2 Cable -- Provides power to tool and communicates
between tool and vehicle.
4) USB Cable -- Used to print retrieved data.
5) Micro SD Card -- Used to store the data and to upgrade the
scan tool
6) Protective Nylon Case -- Used 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
During vehicle testing, power for the scan tool is usually provided
through the OBDII cable connecting to vehicle Data Link Connector
(DLC). Just follow the steps below to turn on the scan tool:
1) Connect the OBD II Cable to scan tool.
2) Find DLC on vehicle.

11
A plastic DLC cover may be found for some vehicles and you
need to remove it before plugging the OBD2 cable.
3) Plug the OBD II 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) Key Test: Checks if the keyboard is working properly.
5) LCD Test: Checks if the LCD display is working properly.
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 and
UP/DOWN scroll button to select Setup, and press the OK button.

12
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
b
utton
and LEFT/RIGHT scroll button to select Language,andpress
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)
Figure 3.3
Unit of Measure

13
Metric is the default measurement unit.
1) From System Setup screen, use the LEFT/RIGHT scroll
button to select EN/METRIC 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
b
utton to save you
r
selection and return to
previous menu. Or, press the ESC button to exit without saving.
Beep Set
The default setting is Beep On.
1) From System Setup screen, use the UP/DOWN scroll button
and LEFT/RIGHT scrollbuttontoselectBeep and press the
OK button.
2) Fro
m
Beep Set menu, use the LEFT/RIGHT scroll
b
utton to
select ON or OFF to turn on/off the beep. (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.

14
Figure 3.5
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.
1) From System Setup screen, use the UP/DOWN scroll button
and LEFT/RIGHT scroll button to select LCD Test,andpress
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

15
The About function allows viewing of some important information
such as serial number and software version number of the scanner.
1) Fro
m
System Setup screen, use the UP/DOWN scroll
b
utton
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
The MaxiService®MST505 is s
p
eciall
y
desi
g
nedtoworkwithmost
Volkswa
g
en, Audi, Seat and Skoda sold worldwide of 1996 o
r
newe
r
models
b
ein
g
OBD II com
p
liant, includin
g
those e
q
ui
pp
ed with
universal
p
rotocol -- Control Area Network
(
CAN
)
.Itisre
q
uired
by
EPA that all 1996 and newe
r
vehicles
(
cars and li
g
ht trucks
)
sold in
the United States must
b
eOBDIIcom
p
liant 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).

16
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.
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
ignition back to on and continue the testing.
Verify the control module is not defective.
Operating Error
If the scan tool freezes, then an exception occurs or the vehicle’s
ECU (Electronic Control Unit) is too slow to respond to requests.
You need to do the following to reset the tool:
Reset the scan tool.
Turn the i
g
nition off and wait fo
r
about 10 seconds. Turn the
ignition
b
ack to on and continue the testing.
Scan tool doesn’t power up
If the scan tool won’t power up or operates incorrectly in any other
way,youneedtodothefollowingtocheckup:
Check if the scan tool’s connector is securely connected to the
vehicle’s DLC;
Check if the DLC pins are bent or broken. Clean the DLC pins if
necessary.
Check vehicle
b
attery to make sure it is still good with at least 8.0
volts.

1
4. Playback Data
The Playback Data function allows viewing data from last test
recorded by the scan tool.
4.1 Reviewing Data
1) Use the UP/DOWN scroll
b
utton and LEFT/RIGHT scroll
buttontoselectPlayback from Main Screen (Figure 3.1),and
press the OK button. Wait for the Review data screen to appear.
Figure 4.1
2) To review data saved in the scan function, select Scan in the
Review data menu. To review data saved in the MST function,
select MST in the Review data menu. Then press OK button to
continue.
3) Use the UP/DOWN scroll button to select the desired item from
Scan menu or MST menu, and press the OK button.
Figure 4.2
Review data
1. MST
2. Scan
Scan
1. Trouble
/scan/MAKE/USA/FORD/
2. Datastream: complete list
/scan/make/EOBD/
3. Freeze
/scan/make/USA/
Delete Delete All

2
If no data from previously tested vehicle is recorded, a message
“No data available!” shows on the screen.
4) Review selected data on screen.
Figure 4.3
4.2 Deleting Data
By selecting Delete on the Scan/MST screen, you are allowed to
erase the selected data on the scan tool. Review the recordings
thoroughly before erasing. You could also erase all recordings by
select Delete All.
NOTE:
D
on
’
tuse
D
elete Al
l
unless
y
ou are de
f
initel
y
s
ure what
you are going to proceed.
4.3 Printing Data
Print option allows you to print the recorded files to your computer
andthentotheprinter.
For more details, please refer to chapter 7.1 Print Data
Vehicle Specification
Vehicle: Mustang
Engine Type: Other
Capacity: 3.8L
Transmission: Manual
Fuel Type: Gasoline
Emission Level: Federal Emission
VIN:1FAFP40462F100819
PrefSuf:2R3APB VersionID:4612
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