Service Information
Diagnostic Device Hardware & Windows®

Number: VHW-17-01

Subject: VAS 6154 Diagnostic Interface WLAN Infrastructure
Mode – Troubleshooting Guide

Date: Jan. 20, 2017

Supersedes VHW-16-13 due to updated document cross-references

Table of Contents
Page

Section
1.0

Introduction – MUST READ!

2

1.1

General Information

2

1.2

Using This Guide – Overview

2

2.0

Prerequisites for Troubleshooting – MUST READ!

2

2.1

Dealership Network Prerequisites

2

2.2

Diagnostic Device Prerequisites

3

2.3

VAS 6154 Prerequisites

3

3.0

Troubleshooting

3

3.1

Preparation

3

3.2

Check Power Status

4

3.3

Confirm WLAN Infrastructure Mode Selection

4

3.4

Check Network Connection

5

3.5

Ping the WLAN Access Point

5

Appendix 1 – Access the Web Interface

7

Appendix 2 – Display the User Log

8

Appendix 3 – Check VAS 6154 Configurations & Connection Test

9

Appendix 4 – WLAN Optimizations

12

ATTENTION:
This troubleshooting guide is intended for I.T. Professionals that have:
•

Working knowledge of Wireless Local Area Network (WLAN) systems

•

Specific knowledge of the dealership WLAN / LAN setup and configuration, and
familiarity with VAS 6154 components, initial setup and use

•

Access to vehicle and dealership service technician (to assist with VAS 6154 handling)

This information may be revised at any time. Always check ServiceNet for the latest version.

Page 1 of 12
© 2017 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual
property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.

Service Information
1.0 – Introduction - MUST READ!
1.1 – General Information
This guide contains troubleshooting of VAS 6154 Diagnostic Interface connectivity and malfunction
issues when used in WLAN Infrastructure mode. Specifically, use these step-by-step
troubleshooting procedures for possible self-resolution of…
•

No connection to the Dealership WLAN

•

Intermittent connection to the Dealership WLAN

1.2 – Using This Guide - Overview
•

Follow all instructions and procedures, one after the other in the section or table order given.

•

Be prepared to refer to additional information in the VAS 6154 User’s Guide on CD, and Service
Information documents posted on ServiceNet.

•

Be prepared to observe the status of the
Light Emitting Diode (LED) Indicators during
troubleshooting.

•

If the issue is not resolved after addressing the
prerequisites or completion of a troubleshooting
topic action step, proceed to the next
troubleshooting topic.

2.0 – Prerequisites for Troubleshooting
Successful troubleshooting relies on all prerequisites for troubleshooting being met /addressed prior to
proceeding. In many cases, no /intermittent connectivity issues can be resolved simply by addressing the
prerequisites.

2.1 – Dealership Network Prerequisites
 Dealership network type /minimum performance recommended: Business Grade, 6 Mbps (single
franchise) / 8 Mbps (dual franchise).
 The type of network in use must be known, e.g.: DHCP or Static IP, and the network must remain
enabled and unrestricted at all times for VAS 6154 use.
 Connection to an “open” network is not supported.
 The network’s IP address, name (SSID) and encryption key must all be known or obtainable.
 The WLAN must have free IPs available (as applicable) and support WPA2 encryption.
 Broadcast services cannot be blocked by a network firewall or other security measures.

Page 2 of 12
© 2016 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual
property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.

Service Information
2.2 – Diagnostic Device Prerequisites
 Wireless LAN function on diagnostic laptop or tablet device must be turned ON (laptop switch etc.):
The Panasonic Wireless Switch Utility must indicate: “Wireless LAN ON” & “802.11a Enabled”
Firewall Setup Requirements:
 TCP port 4500 (incoming, outgoing) required for diagnostics
 Multicast on address 239.255.1.1, port 6154 (incoming, outgoing) required for device management.
 Multicast on address 239.255.1.2, port 6154 (incoming, outgoing) required for device management.
 TCP port 6154 (incoming, outgoing) required for device management.
 IP address ranges for the VAS 6154, e.g.: 192.168.1.x, 192.168.13.x, 192.168.61.x, must not be
routed via a proxy server.

2.3 - VAS 6154 Prerequisites
 WLAN Module firmly plugged in to the top of the VAS 6154 (with audible “click”).
 Initial setup performed as per Diagnostic Device Hardware & Windows – Service Information
document: VAS 6154 Diagnostic Interface – Initial Setup Guide (also posted in ServiceNet).
 VAS 6154 User’s Guide on CD available for reference.
 VAS 6154 Docking Station and USB Y-cable available for web interface access.
 A VAS 6154 firmware update is not in process (check ODIS Service main page r/h lower corner)
 Note the VAS 6154 serial number for reference during troubleshooting.

3.0 – Troubleshooting
Do not proceed with troubleshooting if the prerequisites above have not been met /addressed.

3.1 – Preparation
1. Plug the VAS 6154 (with connected WLAN module) into a vehicle Data Link Connector (DLC).
2. Turn on the vehicle ignition.
3. Start the Offboard Diagnostic Information System Service (ODIS Service) application.
4. Wait for the VAS 6154 module to cycle through an LED self-check
5. Observe the operating status of the LEDs (when stabilized), and proceed through the
troubleshooting sections that follow.
The desired LED status that indicates the VAS 6154 is
powered on and connected to the dealership WLAN in
Infrastructure mode:
•

All illustrated LEDs ON. Blue LED ON /flickering):
Page 3 of 12

© 2016 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual
property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.

Service Information
3.2 – Check Power Status
Observe the status of the green –POWER– LED:

Status

Indications

Actions

On

Normal operation

Proceed to Section 3.3 below

Flashing 1Hz

System Error

Access the web interface and display the user log for error
code indications:
• Remove VAS 61564 from vehicle DLC
• Follow the instructions in Appendix 1 and Appendix 2

Flashing 1Hz
simultaneously with
blue LED

Check the WLAN Infrastructure mode activation:

WLAN Infrastructure
mode inactive

• Remove VAS 61564 from vehicle DLC
• Follow the instructions in Appendix 1 and Appendix 3a
• Switch ignition off and back on again to reset module.

VAS 6154 Module in
Power Saving Mode
Off
(All LEDs off)

• Refer to the User’s Guide on CD - Section 2.5.7 for
information on disabling Power Saving mode.
• Remove VAS 6154 from vehicle DLC

• No power supply

• Check vehicle DLC power and ground connections
• Re-insert VAS 6154 to vehicle DLC with confirmed good
power and ground connections
If all LEDs remain off with a known good vehicle DLC,
contact DSS at 888-896-1298.

• Module Malfunction

3.3 – Confirm WLAN Infrastructure Mode Selection
Observe the status of the orange –MODE– LED:
 Orange LED ON: WLAN Infrastructure mode is
active. Proceed to Section 3.4.
 Orange LED NOT ON: WLAN Direct mode is
active. In this case, switch from WLAN Direct to
WLAN Infrastructure mode by pressing and
holding button -1- until two brief beeps are
heard.
-1-