Support

Top 5 Frequently Asked Questions

Below are the five most common questions and their solutions.

1.  When working on an older (pre-US-2007) vehicle, where are the diagnostics? 
Click here for the answer.

2. What is the Central Systems Status under the Help section?
Click here for the answer.

3. When should I use the Synchronize Electronic Control unit data operation?
Click here for the answer.

4. When using Tech Tool Version 2.6.XX, why is the Sensor and Values test not working correctly?
Click here for the answer.

5. What is VADA?
Click here for the answer.

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Adapter and Cable Guide:

Click here to access information on connection tips, identifying your truck’s electrical system, and for a description of the various connectors, cables, and adapters (ie. VOCOM, NEXIQ, J-PRO, DEARBORN, Cables: 6 pin, 9 pin and 16 pin).

User Authorization:

Are you having trouble with user authorizations on Premium Tech Tool? If so, be sure to check out the link below for more information, troubleshooting, and example scenarios regarding PTT user IDs, client IDs, and Partner IDs.

User Authorization Guide

Adapters and Firmware Updates:
Need to find out which adapter is compatible with Premium Tech Tool?  See the adapter matrices below for more information and ensure that the latest released firmware is downloaded to the communication unit. Note: Do not use long expansion cables with USB hubs.


Compatible Adapter Matrix for TT2.6 (All Brands)
Compatible Adapter Matrix for TT2.5 (All Brands)
Compatible Adapter Matrix for TT2.4 (All Brands)

The following software drivers and documentation are available for PTT:

VOCOM II Driver (Version 3.4.0.820) – Now available for TT 2.6.36

VOCOM I Device Driver/Firmware Update (Version 2.4.0.0) for use with TT 2.6.00

VOCOM I Device Driver/Firmware Update (Version 2.3.0.0) for use with TT 2.5.00

Vocom Utility Application

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Clean Up and Support Tools:

 Support Tool:  Designed to assist support personnel in resolving PTT issues, used for – gathering log files, verifying installation/functional status, and to perform a complete removal of PTT from a computer.

– Support Tool for PTT 2.6 and newer:  Click here to download

SVG Viewer – to view Scalable Vector Graphics in browsers that do not provide SVG:  Click Here

If you cannot find the answer to your question – use the Contact Us page to submit your question to PTT Support:  Click Here