VCDS and OBD diagnostic device in the On-Board Diagnostics Shop
Diesel, Engine Technology and Vehicle Technology. Repair, Maintenance and Diagnostics (OBD).

CAN Communication Error: Not Ready After Test

SearchSearch  Automotive Technical ArticlesAutomotive Technical Articles  BookmarksBookmarks  LinksLinks 
GarageGarage  Books / ToolsBooks / Tools  InfoFAQ, Legal Notice & Privacy
RSS FeedRSS Feed  RegisterRegister  LoginLogin DE | EN | IT
 
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Electrical Systems, Vehicle Electronics, Multimedia View previous topic :: View next topic
Author Message
amishorty



Joined: 06/15/2014
Posts: 88
Karma: +9 / -1   Thank you, like it!
Location: Bruchhausen-Vilsen/Deutschland
2004 Volkswagen Passat
Premium Support
Post19-04-2026, 19:00    Subject: CAN Communication Error: Not Ready After Test Quote
Hello everyone,

After my laptop stopped working, I got a new one and installed VCDS on it.

During the diagnostic test on my Passat, the message "CAN: not ready" appeared (photo below).

To rule out the possibility that the problem lies in my own electronics, I repeated the connection test on an Audi A6 from 2012.
With the same result.

I most likely need to perform the initial installation of VCDS now.
because I installed the update from February 2026.

Could you please send the link for the initial installation to my email address?

Thank you for reading.
VG Michi.


20260417_162821.jpg
 Description:
 CAN Communication Error: Not Ready After Test
 File size:  3.95 MB
 Viewed:  167 times

20260417_162821.jpg


Translated on 10-10-2026, 5:35.
Back to top Profile PM Garage
dieselschrauber
Administrator
Administrator
Avatar-dieselschrauber

Joined: 04/12/2002
Posts: 18117
Karma: +800 / -0   Thank you, like it!
Location: St.Gallen
2018 Volkswagen T6 Consumption
Post20-04-2026, 9:13    Subject: CAN Communication Error: Not Ready After Test Quote
Hi, quite sure:
this here
Sure, here is the translation of the text from German to English:

"LG" is an abbreviation for "Liebe Grüße," which means "Best regards" or "Best wishes" in English.


Translated on 10-10-2026, 5:37.
Back to top Profile PM WWW Garage
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Electrical Systems, Vehicle Electronics, Multimedia View previous topic :: View next topic
Similar articles and topics
Topic Forum
No new posts Touran GRA not working after TCU replacement Faults & Documentation (Audi, VW, Seat/Cupra, Skoda)
No new posts A2 Radio: Won't Turn On After Parking? (8Z0) Faults & Documentation (Audi, VW, Seat/Cupra, Skoda)
No new posts Engine won't start, cranks after start attempt Faults & Documentation (Audi, VW, Seat/Cupra, Skoda)
No new posts CAN Error: Not Ready - Troubleshooting Guide On-Board Diagnostics (OBD)
No new posts VCDS HEX-USB+CAN: CAN bus not ready On-Board Diagnostics (OBD)
No new posts VCDS: CAN Bus Not Ready - Troubleshooting On-Board Diagnostics (OBD)
No new posts Engine Error Message in Cold Weather - False Alarm? Diesel Engine Technology
Jump to:  
You cannot post new topics in this forum.
Foren- und Portal-Software: V7.9 © 2003 - 2026 Kaufmann Automotive GmbH, Embedded Software Freelancer & Shop für Kfz-Diagnosegeräte. Parse time: 0.059s

Bloggerei.de TopBlogs.de das Original - Blogverzeichnis | Blog Top Liste
Dieselschrauber Community on ForumRankings.net