Autel MaxScan VAG405 User manual

Table of Contents
1. Safety Precautions and Warnings........................................1
2. Product Information .............................................................2
2.1 Tool Description..........................................................2
2.2 Specifications...............................................................3
2.3 Accessories Included...................................................3
2.4 Navigation Characters................................................3
2.5 Power............................................................................4
2.6 Product Setup ..............................................................4
2.7 Vehicle Coverage.........................................................9
3. Operating Instructions..........................................................9
3.1 VW/AUDI Diagnostics................................................9
3.2 OBDII/EOBD Diagnostics........................................16
3.3 Oil Service..................................................................19
4. Warranty and Service .........................................................34
4.1 Limited One Year Warranty ...................................34
4.2 Service Procedures....................................................34

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:
zAlways perform automotive testing in a safe environment.
zWear safety eye protection that meets ANSI standards.
zKeep clothing, hair, hands, tools, test equipment, etc, away from
all moving or hot engine parts.
zOperate the vehicle in a well-ventilated work area; Exhaust gases
are poisonous.
zPut blocks on drive wheels and never leave vehicle unattended
while running tests.
zUse 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.
zPut transmission in PARK (for automatic transmission) or
NEUTRAL (for manual transmission) and make sure the parking
brake is engaged.
zKeep a fire extinguisher suitable for gasoline/chemical/ electrical
fires nearby.
zDon’t connect or disconnect any test equipment with ignition on
or engine running.
zKeep 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.
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2. Product Information
2.1 Tool Description
2
1
5
3
4
6
① LCD DISPLAY -- Indicates test results. Backlit, 128 x 64 pixel
display with contrast adjustment.
② Y BUTTON -- Confirms a selection (or action) from a menu.
When a DTC’s definition covers more than one screen, it is used
to move down to the next screen for additional data.
③ N BUTTON -- Cancels a selection (or action) from a menu or
returns to the menu. It is also used to set up the unit when being
pressed and held for at least 3 seconds.
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④ UP SCROLL BUTTON -- Moves up through menu and
submenu items in menu mode. When more than one DTC is
retrieved, moves up through the current screen to the previous
screens for additional DTCs and definitions.
⑤ DOWN SCROLL BUTTON -- Moves down through menu
and submenu items in menu mode. When more than one DTC is
retrieved, moves down through the current screen to the next
screens for additional DTCs and definitions.
⑥ OBD II CONNECTOR -- Connects the scan tool to the vehicle’s
Data Link Connector (DLC).
2.2 Specifications
1) Display: Backlit, 128 x 64 pixel display with contrast adjustment
2) Operating Temperature: 0 to 50°C (32 to 122 F°)
3) Storage Temperature: -20 to 70°C (-4 to 158 F°)
4) External Power: 8.0 to 15.0 Volts provided via vehicle battery
5) Dimensions:
Length Width Height
178 mm (7.00”) 95 mm (3.75”) 34 mm (1.35”)
6) NW: 0.70kg (1.54lb), GW: 1.0kg(2.20lb)
2.3 Accessories Included
1) User’s Manual -- Instructions on tool operations
2) OBD2 cable -- Provides power to tool and communicates
between tool and vehicle
3) USB Cable -- Used to upgrade the scan tool
4) Carry Case -- A nylon case to store the scan tool when not in use.
2.4 Navigation Characters
Characters used to help navigate the scan tool are:
1) “►”-- Indicates current selection.
2) “↓” -- A flashing down arrow indicates additional information is
available on the next screen.
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3) “↑” -- A flashing up arrow indicates additional information is
available on the previous screen.
4) “pd” -- Identifies a pending DTC when viewing DTCs.
2.5 Power
The external power of the scan tool is provided via the 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.
zA plastic DLC cover may be found for some vehicles and you
need to remove it before plugging the OBD2 cable.
3) Plug OBD II Cable to the vehicle’s DLC.
2.6 Product Setup
The scan tool allows you to make the following adjustments and
settings:
1) Contrast Adjustment: Adjusts the contrast of the LCD display.
2) Display Test: Tests the LCD display.
3) Keyboard Test: Tests the keyboard.
To enter the setup menu mode
1) From the keyboard: Press and hold the Nbutton for at least 3
seconds until the System Setup menu shows up. Follow the
instructions to make adjustments and settings as described in the
following setup options.
System Setup
►1) Contrast
2) Display Test
3) Keyboard Test
4) Unit of Measure
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2) From the Main Menu: Use the UP/DOWN Scroll Buttons to
select System Setup and then press the Ybutton. Follow the
instructions to make adjustments and settings as described in the
following setup options.
Main Menu
1) VW/Audi
2) OBDII/EOBD
3) Oil Service
►4) System Setup
Contrast Adjustment
1) From the System Setup menu, use the UP/DOWN scroll buttons
to select Contrast, and press the Ybutton.
System Setup
►1) Contrast
2) Display Test
3) Keyboard Test
4) Unit of Measure
2) From the Contrast menu, use the UP/DOWN scroll buttons to
increase or decrease the contrast.
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Contrast
Contrast （45%）
Use or to change
3) Press the Ybutton to save your selection and return to previous
menu.
4) Press the Nbutton to return to previous menus.
Display Test
The Display Test is used to check the LCD display.
1) From the System Setup menu, use the UP/DOWN scroll buttons
to select Display Test and press the Ybutton.
System Setup
1) Contras
t
►2) Display Test
3) Keyboard Test
4) Unit of Measure
2) Press the Ybutton again to start test. Look for missing spots in
the solid black characters.
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Display Test
Press [Y] to test.
Look for missing
3) When completed, press the Nbutton to return.
Keyboard Test
The Keyboard Test is used to verify that the keys are functioning
properly.
1) Use the UP/DOWN scroll buttons to select Keyboard Test from
System Setup menu, and then press Ybutton.
spots in characters.
Press <N> to return.
System Setup
1) Contras
t
2) Display Test
►3) Keyboard Test
4) Unit of Measure
2) Press any key to start test. When you press a key, the key name
should be observed on the display. If the name does not show up,
then the key is not functioning properly.
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Keyboard Test
Press any key to
Start test to
display name.
Key:
Double [N] to Return
3) Double press Nto return to the previous menu.
Unit of Measure
The Unit of Measure is used to change measurement unit between
English and metric.
1) Use the UP/DOWN scroll buttons to select Unit of Measure
from System Setup menu, and then press Ybutton.
System Setup
1) Contras
t
2) Display Test
3) Keyboard Test
►4) Unit of Measure
2) Use the UP/DOWN scroll buttons to change between English
and Metric, and press Y button to confirm.
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Unit of Measure
►01) English
02) Metric
2.7 Vehicle Coverage
The MaxScan VAG405 VW/AUDI Code Scanner is specially
designed to work with most Volkswagen and Audis sold worldwide of
1990 or newer models. If a VW/AUDI has a 16-pin "OBD-II style"
Data Link Connector (DTC), the code reader will certainly work. If it
has an old-style 2x2 Data Link Connector (DTC), then it depends on
whether there are 4 or 3 wires connecting to the pins. If there are 4
wires, each connecting a pin, then it will work. If there are only 3
wires, leaving one pin disconnected, then it will not work.
For VW/AUDI with old-style 2x2 Data Link Connector (DTC), you
need to have a 2x2 cabling adapter which is not included in this
product package.
3. Operating Instructions
3.1VW/AUDI Diagnostics
Reading Codes
CAUTION: Don’t connect or disconnect any test equipment with
ignition on or engine running.
1) Turn the ignition off.
2) Locate the vehicle’s 16-pin Data Link Connector (DLC).
3) Plug the OBDII connector to the vehicle’s DLC.
4) Turn the ignition on. But do not start the engine.
5) Press the Ybutton. The Main Menu will be observed on the
display.
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6) Use the UP/DOWN scroll buttons to select VW/AUDI from the
menu and press the Ybutton.
7) Use the UP/DOWN scroll buttons to select the system from the
Select System menu and press the Ybutton.
Main Menu
►1) VW/Audi
2) OBDII/EOBD
3) Oil Service
4) System Setup
Select System
►01) Engine
02) Auto Trans
15) Airbags
03) ABS Brakes
08) Auto HVAC
09) Cent. Elect.
zIf the scan tool fails to communicate with the selected
vehicle’s ECU (Electronic Control Unit), a “LINK
ERROR!” message shows up on the display.
9Verify that the ignition is ON;
9Check if the scan tool’s OBD II connector is securely
connected to the vehicle’s DLC;
9Verify that the module is supported;
9Turn the ignition off and wait for about 10 seconds. Turn the
ignition back to on and repeat the procedure from step 5.
zIf the “LINK ERROR” message does not go away, then
there might be problems for the scan tool to communicate
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with the module being tested. The most common cause is
that the scanned module is not supported on the vehicle.
zThe numbers (01, 02, 15, 03, 08, etc) in front of the system
names refer to the physical addresses assigned to the systems,
not the sequence of the systems to be arranged.
8) Select Read Codes from the Select Function menu and press the
Ybutton.
Select Function
►1) Read Codes
2) Erase Codes
3) ECU Information
4) Readiness Test
zIf there are no Diagnostic Trouble Codes present, the display
will indicate “NO CODES ARE STORED IN THE
MODULE!”
zIf there are any Diagnostic Trouble Codes present, the DTC
number and its definition will show on the LCD display.
zThe subcode, the communication protocol, the sequence of
the DTC currently being observed and the total number of
codes detected will be observed on the upper right hand
corner of the display.
zWhen a DTC’s definition covers more than one display screen,
use the Ybutton, as necessary, to view any additional
information.
zIf the DTC definition is not available, an advisory message
prompting you to refer to the vehicle service manual will be
observed on the display.
zIf more than one DTC is found, use the UP/DOWN scroll
buttons, as necessary, until all the codes have been shown up.
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16627 --100 01/10
CAN BUS
↓
Solenoid Valve (A)
For Boost Pressure
Control (N75):
Malfunction: P0243
Erasing Codes
CAUTION: Erasing the Diagnostic Trouble Codes may allow the
scan tool to delete not only the codes from the vehicle’s on-board
computer, but also “Freeze Frame” data and manufacturer specific
enhanced data. Further, the I/M Readiness Monitor Status for all
vehicle monitors is reset to Fail status. Do not erase the codes before
the system has been checked completely by a technician.
1) If you decide to erase the DTCs, use the UP/DOWN scroll
buttons to select Erase Codes from Select Function menu and
press the Ybutton.
Select Function
1) Read Codes
►2) Erase Codes
3) ECU Information
4) Readiness Test
zIf the scan tool is not connected or no communication is
established with the vehicle yet, then refer to Reading Codes
from 1 to 7 at Paragraph 3.1.
2) A warning message comes up asking for your confirmation.
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3) If you do not want to proceed with erasing the codes, press the N
button to exit. A message of “command cancelled” will show up.
4) If you do wish to proceed to erase the codes, then press the Y
button.
5) If the codes are cleared successfully, an “ERASE DONE!”
confirmation message will show on the display. Press any button
to return to the previous menus.
6) If the codes are not cleared, then an “ERASE FAILURE!”
message will appear. Press the N button to return to previous
menus.
Viewing ECU Information
1) To view ECU Information, use the UP/DOWN scroll buttons
to select ECU Information from Select Function menu and
press the Ybutton.
Erase Codes
Erase Trouble Codes!
Are you sure?
<YES> NO
Select Function
1) Read Code
2) Erase Code
►3) ECU Information
4) Readiness Test
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zIf the scan tool is not connected or no communication is
established with the vehicle yet, then refer to Reading Codes
from 1 to 7 at Paragraph 3.1.
ECU Information
VAG No.: 06A906032TF
Component:
Bosch 1.815VT
0020
Coding: 0008570
Imp: 0000 WSC: 000078
zIf there is no ECU Information available, a warning message
shows on the display.
2) Press the Nbutton to return to previous menus.
Readiness Test
Important: The Readiness Test function is used to check the
operations of the Emission System on OBD2/EOBD compliant
vehicles. It is an excellent function to use prior to having a vehicle
inspected for compliance to an emissions program.
z“Pass” -- Indicates that a particular monitor being checked has
completed its diagnostic testing.
z“Fail” -- Indicates that a particular monitor being checked has
not completed its diagnostic testing or the monitor is not
supported on that vehicle.
1) Use the UP/DOWN scroll buttons to select Readiness Test from
Select Function menu and press the Y button.
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zIf the scan tool is not connected yet, then refer to Reading
Codes from 1 to 7 at Paragraph 3.1.
2) Use the UP/DOWN scroll buttons, as necessary, to view the status
of the following monitors:
zEGR Sys.-- EGR System Monitor
zO2 Sensor(s) -- O2 Sensors Monitor
zCatalyst -- Catalyst Monitor
zEVAP Sys. -- Evaporative System Monitor
zHeated O2 --O2 Sensor Heater Monitor
zSec Air Inject -- Secondary Air Monitor
zA/C -- A/C system Monitor
zCatalytic Conv. -- Catalytic Convertor Monitor
Select Function
1) Read Code
2) Erase Code
3) ECU Information
►4) Readiness Test
Readiness Test ↓
EGR Sys. Pass
Heated O2 Pass
O2 Sensor(s) Pass
A/C Pass
Sec. Air Inject Pass
EVAP Sys. Fail
3) Press the Nbutton to return to previous menus.
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3.2OBDII/EOBD Diagnostics
Reading Codes
CAUTION: Don’t connect or disconnect any test equipment with
ignition on or engine running.
1) Turn the ignition off.
2) Locate the vehicle’s 16-pin Data Link Connector (DLC).
3) Plug the OBDII connector to the vehicle’s DLC.
4) Turn the ignition on. But do not start the engine.
5) Press the Ybutton. The Main Menu will be observed on the
display.
6) Use the UP/DOWN scroll buttons to select OBDII/EOBD from
the menu.
Main Menu
1) VW/Audi
►2) OBDII/EOBD
3) Oil Service
4) System Setup
7) Press the Ybutton. A sequence of messages showing the
OBDII/EOBD protocols will be observed on the display until the
vehicle protocol is detected.
zIf the scan tool fails to communicate with the vehicle’s ECU
(Engine Control Unit), a “LINK ERROR!” message shows
up on the display.
9Verify that the ignition is ON;
9Check if the scan tool’s OBD II connector is securely
connected to the vehicle’s DLC;
9Verify that the vehicle is OBDII/EOBD compliant;
9Turn the ignition off and wait for about 10 seconds. Turn the
ignition back to on and repeat the procedure from step 5.
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zIf the “LINK ERROR” message does not go away, then there
might be problems for the scan tool to communicate with the
vehicle. Contact your local distributor or the manufacturer’s
customer service department for assistance.
8) After the vehicle protocol is displayed on the screen, press any key or
wait about 2 seconds for the OBDII/EOBD DIAG. menu to come up.
9) Use the UP/DOWN scroll buttons to select Read Codes from the
menu and press the Ybutton.
OBDII/EOBD DIAG.
►1) Read Codes
2) Erase Codes
zIf there are no Diagnostic Trouble Codes present, the display
will indicate “NO CODES ARE STORED IN THE
MODULE!”
zIf there are any Diagnostic Trouble Codes present, the Fault
Codes and Pending Codes will be reported on the display.
P0118 Pd 06/06
ISO9141 $09
↓
Pressure Control
Solenoid A Control
Circuit Low
zThe DTC number will appear on the upper left hand corner
and its definition will show on the body of screen.
zThe type of code (Generic or Manufacturer specific), the
vehicle protocol, the sequence of the DTC currently being
observed, the total number of codes detected and the module
17

ID will be observed on the upper right hand corner of the
display.
zIf the code being displayed is a pending code, the Pd icon will
be observed next to the DTC number on the upper right hand
corner of the display.
zWhen a DTC’s definition covers more than one display screen,
use the Ybutton, as necessary, to view any additional
information.
zIf the retrieved DTCs contain any manufacturer specific or
enhanced codes, you will be prompted to refer to the CD DTC
library or the vehicle service manual to view the DTC
definitions.
10) If more than one DTC is found, use the UP/DOWN scroll buttons,
as necessary, until all the codes have been shown up.
Erasing Codes
1) If you decide to erase the DTCs, use the UP/DOWN scroll
buttons to select Erase Codes from the OBDII/EOBD DIAG.
menu and press the Ybutton.
OBDII/EOBD DIAG.
►1) Read Codes
2) Erase Codes
zIf the scan tool is not connected or no communication is
established with the vehicle yet, then refer to Reading Codes
from 1 to 8 at Paragraph 3.2.
2) A warning message comes up asking for your confirmation.
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Erase Codes
Erase Trouble Codes!
Are you sure?
<YES> NO
3) If you do not want to proceed with erasing the codes, press the N
button to exit. A message of “command cancelled” will show up.
4) If you do wish to proceed to erase the codes, then press the Y
button.
5) If the codes are cleared successfully, an “ERASE DONE!”
confirmation will show on the display. Press any button to return
to previous menus.
6) If the codes are not cleared, then an “ERASE FAILURE!”
message will appear. Press the N button to return to previous
menus.
3.3Oil Service
1) Turn the ignition off.
2) Locate the vehicle’s 16-pin Data Link Connector (DLC).
3) Plug the OBDII connector to the vehicle’s DLC.
4) Turn the ignition on. But do not start the engine.
5) Press the Ybutton. The Main Menu will be observed on the
display.
6) Use UP/DOWN scroll button to select Oil Service from the menu,
and press the Ybutton.
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