MAHA VCI Original Operating Instructions

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MAHA VCI

Vehicle Communication Interface

Original Operating Instructions

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2

1

Description .......................................................................................................... 4

2

Initial Operation .................................................................................................... 6

3

Changing the WiFi Settings ................................................................................. 12

4

Resetting the WiFi Configuration to Factory Defaults ............................................ 17

5

LED Indicators ................................................................................................... 18

6

Firmware Update ............................................................................................... 19

7

Operation .......................................................................................................... 21

8

FAQ .................................................................................................................. 23

9

Recording a Diagnostic Protocol ......................................................................... 25

10

Network Overview .............................................................................................. 27

11

Maintenance ...................................................................................................... 28

12

Disposal ............................................................................................................ 29

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Contents

1.1 General Information .................................................................................................. 4

1.2 Overview .................................................................................................................. 4

1.3 Specifications ........................................................................................................... 5

1.4 Requirements for the Control Computer ................................................................... 5

2.1 Noting the Serial Number ......................................................................................... 6

2.2 Connecting the Device ............................................................................................. 6

2.3 Establishing the WiFi Connection with Windows ....................................................... 6

2.4 Setting up the VCI in MAHA Emission Software Version 7.51 .................................... 9

6.1 Check and update firmware manually. .................................................................... 19

7.1 OBD Diagnosis (MES 7.51) ..................................................................................... 21

7.2 OBD during Test Procedure (MES 7.51) ................................................................. 22

8.1 In MES settings: MAHA VCI not found .................................................................... 23

8.2 No communication to VCI ...................................................................................... 23

8.3 Connection with VCI established, but no ECU found or log not recognised. ............ 23

8.4 Integrate MAHA VCI into an existing network infrastructure ..................................... 23

8.5 My PC has no WLAN. ............................................................................................ 24

8.6 OBD button is not available in the main menu ......................................................... 24

8.7 VCI can no longer be found, or WLAN has been configured incorrectly. .................. 24

10.1 MAHA VCI as a WLAN base station ........................................................................ 27

10.2 MAHA VCI as a WLAN client .................................................................................. 27

11.1 Cleaning ................................................................................................................. 28

11.2 Troubleshooting ..................................................................................................... 28

11.3 Spare Parts ............................................................................................................ 28

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13

Contents of the Declaration of Conformity ........................................................... 29

14

Company Information ......................................................................................... 30

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4

1

Description

1.1

General Information

1.2

Overview

A

B

C

D

E

F

G

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The MAHA VCI and MAHA Emission Software can perform OBD diagnostics on
vehicles (cars, LCVs, trucks and buses).

Communication with the PC is wireless via WLAN. The VCI can be operated either
as a WLAN base station (access point) or as a WLAN client, connected to the
existing WLAN network.

The VCI and the PC software are accredited for exhaust emission test according

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to Guidelines 5 in Germany.

D

F

B

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G

A C E

OBD connector

Metal bracket

Function key F1

Function key F2

LED 1

LED 2

Magnetic clip for development hardware

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1.3

Specifications

TP through CAN (ISO

1.4

Requirements for the Control Computer

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Dimensions (L x W x H) 135 x 50 x 25 mm
Operating temperature 0 °C … +50 °C
Vehicle Male OBD connector (16 pin)
Weight 110 g
Power consumption < 3.6 W

Nominal voltage

Voltage range +7 … +30 V DC
Power consumption approx. 260 mA at 12 V supply voltage

Supported diagnostics log

OBD standards

WLAN

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+ 12 V DC via male OBD con-

nector

ISO-

15765)

WWH-OBD (ISO 27145)

SAE J1939

KWP 2000 (ISO 14230)

CARB (ISO 9141)

ISO 15031
SAE J1979
SAE J2012

UN/ECE R83
UN/ECE R49

IEEE 802.11 a/b/g/n/h Dual Stream 300 MBit/s

802.11n Standard for 2.4 GHz (EU and NAR conformity)
Encryption types: WPA, WPA2/PSK

WLAN base station (factory settings), WLAN Client

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• MAHA Emission Software (current version available on MAHA homepage)

• WiFi access

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• Windows 7 operating system

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2

Initial Operation

2.1

Noting the Serial Number

2.2

Connecting the Device

2.3

Establishing the WiFi Connection with Windows

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1 Connect the MAHA VCI male OBD connector (A) and the vehicle female OBD

connector. LED (F) starts flashing.

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2 Establish WLAN connection with the PC (see section “WLAN connection”).

1 Wait until MAHA VCI has launched and the network has been established.
2 Click on the WLAN symbol in the Windows task bar:

If the symbol is not visible, the computer is not WLAN enabled, or the network ty­pe has been deactivated (e.g. “airline mode switch”.

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3 Select the network “MAHAVCI-serial

number”.
Tick checkbox “automatically ­establish connection”.
Press “Connect” button.

4 Enter security key (factory settings:

“haldenwang”).

5 The connection is established.

6 Since the MAHA VCI network offers

no internet connection,
the following note is acceptable:

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The first time, the WLAN connection is established, complete network set-up and
VCI connection may take up to one minute.

7 Select “Workplace network” as the place of the network under network set-

tings:

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2.4

Setting up the VCI in MAHA Emission Software Version 7.51

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1 Integrate MAHA VCI into the WLAN according to the section “Connect

devices”.

2 Start MES.

3 Press “Page Down” in the MES main menu.

4 Change to the settings menu.

5 Select “Exhaust devices settings”.

6 Press “Setup” button under “MAHA VCI”.

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7 Press “Find devices” (F6) in the following screen.

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8 The search result is displayed in the status bar.

or

11

The VCI can now be used for OBD communication (e.g. for exhaust emission
tests in Germany acc. to Guidelines 5).

9 The MAHA VCI found are listed. If several MAHA VCI are found, the active

device must be selected (with the noted serial number from the section “Note
serial number”).
Press “Save / Next” (F8).

10 Confirm settings with “Save / Next” (F8).

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3

Changing the WiFi Settings

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MAHA VCI can be configured via the MAHA Emission Software (MES) user
interface as either a WLAN base station (factory settings), or as a WLAN client.

Thus, the device is easy to integrate into wireless networks.

1 Call up the menu “VCI settings” (see section “Set-up VCI in MAHA Emission

Software Version 7.51”, steps 1 - 7).

2 Confirm “WLAN settings” in the list of VCI found.

3 A connection with the VCI is established, and existing WLAN settings are

readout:

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4 WLAN settings can be changed in the following screen.
a) Option 1: WLAN operating mode “access point” (= WLAN base station)

The following settings are required:

• Network name (SSID)

• Password

• Type of cryptography (open, WPA, WPA2-PSK)

• Frequency channel

• VCI IP address

• Network mask

(factory settings: 192.168.10.1)

(factory settings: 255.255.255.0)

The option “Automatically connect PC to VCI” creates a profile in Windows, i.e.
the steps from the section “Connect devices” are automatically carried out.

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b) Option 2: WLAN operating mode “Client” with automatic IP assignment

The following settings are required:

• Network name (SSID)

• Password

• Type of cryptography (open, WPA, WPA2-PSK)

• Assignment of IP address Automatic (DHCP)

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c) Option 3: WLAN operating mode “Client” with manual IP assignment

The following settings are required:

• Network name (SSID)

• Password

• Type of cryptography (open, WPA, WPA2-PSK)

• Assignment of IP address Manual

• Frequency channel

• VCI IP address

• Network mask

• Gateway (= IP address of the router)

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5 Save changes with “Save / Next” (F8) button.
6 WLAN access point: If the password differs from the standard password

“

haldenwang

”, it must be confirmed.
By selecting the option “Show password” the password can be displayed in
full.

7 WLAN client: The network must exist and be accessible. Available networks are

determined.

a) If no network with the entered name is found, an error message is issued.
b) If the network is found, the password must be confirmed.

Network login information verifications are optional. In this case, a test connection
to the network is established to verify the password. The existing network is then
reconnected.

8 The network settings are transferred from the MES to the MAHA VCI. The

MAHA VCI performs a restart.

9 If network settings are changed, WLAN setting in Windows may require

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adjustment (See section “Set-up WLAN connection with Windows”).

17

4

Resetting the WiFi Configuration to Factory Defaults

blue

green
red

This function is no longer available.

for the VCI with serial numbers from 2002150
following a VCI firmware update (MES from version 7.51.030)

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If the VCI is no longer accessible, the WLAN settings can be reset to the following
factory settings:

• SSID: MAHAVCI-

[serial number]

• Password: haldenwang

• Encryption: WPA2-PSK

• IP address: 192.168.10.1

• Network mask: 255.255.255.0

1 Press and hold both function keys (F1 and F2) simultaneously.
2 The VCI LEDs (E, F) light-up

.
3 Press and hold both keys longer than 10 seconds.
4 If both LED light-up

If both LED light-up

, the WLAN settings have been reset.

, reset has failed. In this case, the reset procedure

should be repeated.

5 Unplug and VCI and plug back in for restart.

•

•

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5

LED Indicators

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Condition LED 1 (E) LED 2 (F)

Start VCI (boot procedure) Off red, flashing

VCI set-up as WLAN client, looking for
base station

VCI set-up as WLAN client, connection
with base station established

VCI set-up as base station: yellow, flashing

Device supplied with voltage, but vehicle
ignition off

Vehicle ignition on solid green

Data transmission between VCI and PC,
and communication between vehicle and
VCI

Press function keys F1 and F2 solid blue solid blue

WLAN has been reset to factory settings solid green solid green

WLAN configuration reset failed solid red solid red

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white, flashing

green, flashing

red, flashing

Faster flashes
(2x per second)

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6

Firmware Update

Risk of damage

The update must not be interrupted under any circumstances; otherwise, the de­vice is at risk of damage.

The process may take several minutes, and consistent voltage supply must be
ensured throughout this process (Do not unplug the device from the male OBD
connector. Do not switch off vehicle ignition.).

6.1

Check and update firmware manually.

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MES checks the MAHA VCI firmware version while establishing communication.
If an older firmware version is running on the device, MES will prompt for a

confirmation of firmware update.

1 Call up the menu “VCI settings” (see section “Set-up VCI in MAHA Emission

Software Version 7.51”, steps 1 - 7).

2 If several VCI exist, select the VCI to be checked or updated by clicking the

corresponding radio button “Active”.

3 Ensure consistent power supply to the VCI (plug into the vehicle’s male OBD

connector.)

4 Confirm “Firmware Update” button

(F7).

5 Confirm safety notice.

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6 A connection with the VCI is established, and the firmware is checked.

a) Firmware must be updated.

This process may take several minutes; the progress is shown in the
status bar.

b) Firmware is up-to-date and acceptable; no update required.

c) Process failure. Verify connection, repeat process.

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7

Operation

7.1

OBD Diagnosis (MES 7.51)

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1 Select “<3> OBD” in the main menu.
If the button is not displayed, see section “FAQ

/OBD button is not available in the main menu”.

2 Select “<2> OBD diagnostics” in the

OBD main menu.

3 OBD communication is established

with “Start communication”:

4 If more than one device is set up, the

active VCI must be selected, then
“Next”:

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7.2

OBD during Test Procedure (MES 7.51)

55 Once communication has been suc-

cessfully established, the following
OBD diagnostics can be carried out:

E End communication

L Live data measurement mode RPM or temperature reading

O O2 sensor voltage diagram Oscilloscope for rotation and O2 sensor volta-

ge/power

R Control loop inspection Lambda sensor diagnosis

3 Read fault memory Readout DTC and readiness codes

4 Delete fault memory

9 Vehicle information Reads all vehicle information available via OBD

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MAHA VCI can be used for vehicle emission tests. Values for e.g. rotational speed,
motor temperature, inspection readiness test results, and the vehicle’s fault
memory are read via the OBD access.

MAHA VCI can be used in all test schedules, incl. exhaust emission tests in
Germany acc. to Guidelines 5.

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8

FAQ

8.1

In MES settings: MAHA VCI not found

8.2

No communication to VCI

8.3

Connection with VCI established, but no ECU found or log not recognised.

8.4

Integrate MAHA VCI into an existing network infrastructure

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1 Check if MAHA VCI is properly plugged-in to the OBD plug.
2 Check if MAHA VCI is. supplied with voltage from the vehicle (LED lights up)
3 Check if the vehicle ignition is turned on (LED of VCI lights up green).
4 Maximum distance between MAHA VCI and PC or WLAN base station should

not exceed 15 metres.
5 Check if WLAN interface on the PC is switched on (“airlinemode”).
6 Check if the WLAN adaptor is supported by the PC and functions correctly.
7 Check if the firewall compromises the connection. UDP connections 7500 and

7501 on the PC must be open, deactivate firewall if necessary.
8 Check if Windows is connected to the correct WLAN network.
9 VCI as WLAN client: Check
a) if the WLAN base station is active and accessible.
b) if the VCI can be connected to the base station.
c) the network settings of all devices are compatible.
10 VCI as WLAN base station: Check if the network settings or IP address or

subnetwork mask match the networks of the other devices.
11 Disconnect all network connections.
12 Restart VCI
13 Reset network settings and set device up again (see section “Putting into

service”.

Check if the correct MAHA VCI has been selected from the VCI list.
2 Measures according to section “In MES settings: MAHA VCI not found”.

1 Check if the engine is running and LED 2 of the VCI permanently lights up in

green.
2 If the problem persists, please follow the instructions from the section “Create

error log”.

The factory setting of MAHA VCI is “WLAN base station”, i.e. the VCI establishes a
wireless network.

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8.5

My PC has no WLAN.

8.6

OBD button is not available in the main menu

8.7

VCI can no longer be found, or WLAN has been configured incorrectly.

However, MAHA VCI can also be operated as a WLAN client and integrated into
an existing network infrastructure (e.g. WLAN rounter).

For this purpose, please follow the instructions in the sections “Set-up WLAN
connection with Windows“ and “Change WLAN settings”.

If the PC is not WLAN enabled, a USB WLAN adapter is required. This is available
in retail outlets.

If the button is not displayed, Softdip process no. 6 must be activated. This re­quires a mechanic’s dongle or the daily password.

1 Call up the mechanic's menu

2 Select menu item “Softdip processes (other)”.

3 Activate softdip no. 6 “OBD button in the main menu”.

The WLAN configuration can simply be reset to factory settings (see section “Re­set WLAN configuration to factory settings”).

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After reset, the VCI must be set up in Windows or MES again.

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9

Recording a Diagnostic Protocol

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MES can be configured to record the data transmission between the control­computer, the VCI and the vehicle. The error pattern analysis is supported by a
record of the diagnostics telegrams.

Activate recording in MES:

1 Start MES.

2 Press “Page Down” in the MES main menu.

3 Call up the “Diagnostics” menu.

4 Select menu item “OBD diagnostics”.

5 Select “Record diagnostics log” under “Service”.

6 Activate recording by clicking on the green button.

7 Leave screen with <F8> Next.

8 Establish communication again. Remember precise date and time.
9 Reproduce error scenario.
10 End communication.
11 Event record is stored under:

C:\Programme (x86)\MAHA\EUROSYSTEM\751\LOG\VCI\.

If the vehicle registration is known, the file is called: [Date]-[Time]_[Vehicle

reg].csv. Otherwise, the file is called:

[Date]-[Time].csv

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The diagnostics log record is automatically deactivated when the MAHA Emission
Software (MES) is restarted.

12 Please contact the Service Centre. The following information is required:

−Vehicle data: manufacturer, series and type, date of first registration, VIN

− VCI data: serial number, version number (type sign)

−Control computer data: operating system, local memory, …

− network configuration and hardware equipment

− Actions performed (e.g. established communication with the vehicle)

− Observed result:

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10

Network Overview

10.1

MAHA VCI as a WLAN base station

10.2

MAHA VCI as a WLAN client

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The VCI creates a network into which the control computer logs in.

Control computer MAHA VCI (WLAN base station)

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USB WLAN adapter

Set up VCI as a WLAN client (see section “Change WLAN settings”).
Connect VCI with an existing router (WLAN base station).

Control computer Router

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USB WLAN adap­ter

(WLAN base station)

MAHA VCI

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11

Maintenance

11.1

Cleaning

11.2

Troubleshooting

11.3

Spare Parts

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Make sure that the contacts of the female USB connector and the male OBD
connector are not dirty or damaged.

Clean the housing, the female USB connector and the male OBD connector as
required using mild detergent.

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• Please observe the display elements, see section “LED displays”.

• Make sure that the MAHA VCI has been correctly commissioned.

• Make sure that the MAHA Emission software has been started up correctly.

• Check that there is a proper connection between the vehicle, MAHA VCI and

the PC or the network settings.

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• Please contact the Service Centre.

To ensure safe and reliable operation, only use original spare parts supplied by the

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equipment manufacturer.

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12

Disposal

13

Contents of the Declaration of Conformity

MAHA Maschinenbau Haldenwang GmbH & Co. KG

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If you want to dispose of the equipment, please contact your MAHA dealer or the
following address, indicating equipment type, date of purchase and serial number:

MAHA Maschinenbau Haldenwang GmbH & Co. KG
Hoyen 20
87490 Haldenwang
Germany

Phone: [phone]
Fax: [phone]

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Email: [e-mail]

herewith declares as a manufacturer its sole responsibility to ensure that the
product named hereafter meets the safety and health regulations both in design
and construction required by the EC directives stated below.
This declaration becomes void if any change is made to the product that was not

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discussed and approved by named company beforehand.

Model: MAHA VCI
Designation: Vehicle Access Device
Directives: 2014/30/EU; 2014/53/EU
Standards: EN 301 489-1 V1.9.2:2011-09

EN 301 489-17 V2.2.1:2012-09
ETSI EN 300 328 V1.8.1:2012-06
ETSI EN 301 893 V1.7.1:2012-06
EN 60950:2011-01
EN 62311:2008-09

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14

Company Information

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© MAHA Maschinenbau Haldenwang GmbH & Co. KG

Legal notice based on ISO 16016:
The reproduction, distribution and utilization of this document as well as the communication of its
contents to others without explicit authorization is prohibited. Offenders will be held liable for the
payment of damages. All rights reserved in the event of the grant of a patent, utility model or de­sign.

The contents of this edition have been checked with great care. However, errors cannot be fully
excluded. Subject to technical change without notice.

Document

Document No.: BAZ72901-en
Approval Date: 2017-02-07

Manufacturer

Service

=== Ende der Liste f ür Textm arke I nhalt == =

MAHA Maschinenbau Haldenwang GmbH & Co. KG
Hoyen 20
87490 Haldenwang
Germany

Phone: [phone]
Fax: [phone]
Fax Parts: [phone]
Internet: http://www.maha.de
E-Mail: [e-mail]
Hotline: [phone] for Brake Testers and Test Lanes
[phone] for Automotive Lifts
[phone] for Dynamometers and Emission Testers

AutomoTec GmbH
Maybachstraße 8
87437 Kempten
Germany

Phone: [phone]
Fax: [phone]
Internet: http://www.automo-tec.com
E-Mail: [e-mail]

BAZ72901-en