2001 Audi TT 225 - 01 - Engine "No response from controller!"

   #1  

aspataro

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Hi Ross-tech,

I was super excited when my cable arrived but right away having issues connecting to 01- engine module.. It seems to connect to everything else fine with auto-scan and selecting modules so this is a head scratcher.

The first time I connected to 01-Engine with a cheap ebay cable and vcds-lite which worked, but then it didn't on the second use.. So I bought a ross-tech and legit vcds but still cannot connect to the 01-engine controller. Not sure if this is something I am doing wrong or issues with my ECU.. Any advice is appreciated!

Some things to note:

- with force K on engine selected, error message is "Unable to communicate with address 01, and 'Force K on engine' is activated."
- on the first scan when it actually worked, the read-out under 01-Engine had "Labels: Redir Fail!" (not sure if this is significant)
- car is 2001 Audi TT 225 AMU

Here is my autoscan:
Code:
VCDS
Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: Release 20.4.2(x64) Data version: 20200730 DS317.0
www.Ross-Tech.com
Dealer/Shop Name:
Workshop Code: 000 00000 000000
Self-Diagnosis Log
Monday,24,August,2020,18:08:50:51528
VIN: License Plate:
Mileage: 266260km-165446mi Repair Order:
Chassis Type: 8N - Audi TT (1999 > 2007)
Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
 Mileage: 266260km-165446miles
------------------------------------------------------------------------------- 
Address 03: ABS Brakes Labels: 8N0-907-379-MK20.lbl
 Part No: 8N0 907 379 C
 Component: ABS/EDS 20 IE CAN V003
 Coding: 13504
 Shop #: WSC 01236
 VCID: 3C2130A54F77336B4EB-4B1E
1 Fault Found:
01279 - Longitudinal Acceleration Sensor (G251)
 57-00 - Electric Circuit Failure
------------------------------------------------------------------------------- 
Address 08: Auto HVAC Labels: 8N0-820-043.lbl
 Part No: 8N0 820 043 A
 Component: TT-KLIMAVOLLAUTOMAT D03
 Coding: 00140
 Shop #: WSC 01236
 VCID: 2809FCF5ABEF8FCB3A3-2580
2 Faults Found:
00604 - Potentiometer Positioning Motor for Air Flow Flap (G113)
 30-10 - Open or Short to Plus - Intermittent
00792 - A/C Pressure Switch (F129)
 31-00 - Open or Short to Ground
------------------------------------------------------------------------------- 
Address 15: Airbags Labels: 8N8-909-601.lbl
 Part No: 8N8 909 601
 Component: Airbag Front+Seite 1005
 Coding: 10102
 Shop #: WSC 01236
 VCID: 77ABEF8936D1D033639-5118
No fault code found. 
-------------------------------------------------------------------------------
VCDS
Self-Diagnosis Log
Monday,24,August,2020,18:08:50:51528
Page 2
VIN: License Plate:
Address 17: Instruments Labels: 8Nx-920-xxx-17.lbl
 Part No: 8N1 920 880 D
 Component: KOMBI+WEGFAHRS. M73 D09
 Coding: 07344
 Shop #: WSC 93200
 VCID: 3635228D715BE93BB8F-4B00
No fault code found. 
------------------------------------------------------------------------------- 
Address 22: AWD Labels: 02D-900-554.lbl
 Part No: 02D 900 554 B
 Component: HALDEX LSC ECC 0006
 VCID: 1F1BE729FEA148734B9-4B00
No fault code found. 
------------------------------------------------------------------------------- 
Address 35: Centr. Locks Labels:. 8Nx-962-267.lbl
 Part No: 8N8 962 267 A
 Component: Central Lock/Alarm D04
 Coding: 15884
 Shop #: WSC 01236
 VCID: 3FDB47A95E6128736B9-4EEA
1 Fault Found:
01616 - Signal Wire to Interior Monitor
 36-00 - Open Circuit 
------------------------------------------------------------------------------- 
Address 55: Headlight Range Labels: 4B0-907-357-AUT.lbl
 Part No: 4B0 907 357
 Component: LEUCHTWEITEREGLER D004
 Coding: 00010
 Shop #: WSC 01236
 VCID: 6597B5C19C7D52A3C15-51CE
1 Fault Found:
00776 - Level Control System Sensor; Left Front (G78)
 31-00 - Open or Short to Ground

End----(Elapsed Time: 02:53, VBatt start/end: 12.1V/12.0V. VIgn 11.9V)-----
 
   #2  

Bruce

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--------
Please run [Options][Test] and post the report given. This should be done with the key on, engine off.

I suspect a K line issue.

Any other symptoms from the car?

You did purge any old software that came with the fleabay cable, right? Replacing it with the real stuff from our web site? That cheap stuff can make things a bit nuts.
 
   #3  

aspataro

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Please run [Options][Test] and post the report given. This should be done with the key on, engine off.

I suspect a K line issue.

Any other symptoms from the car?

You did purge any old software that came with the fleabay cable, right? Replacing it with the real stuff from our web site? That cheap stuff can make things a bit nuts.
Nope, nothing else I have noticed and yes I have removed old software.. Here is the test results as requested:

Port Status: OK
Interface: Found!
Type: HEX-V2
Version:
CB: 0.4513.4
FW: 0.256
Status: Ready
CAN: Testing, K1: OK, K2:OK
VBat: 11.82V, Vlgn: 11.70V
VIN(s) Used: 1/3
 
   #4  

Uwe

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General note: Please don't use the [Print] function in VCDS to post data here; the formatting it produces is less than optimal for the forum. Instead, please use the [Copy] function in VCDS, or [Save], which will produce a plain text file in your Logs sub-folder that you can open with Notepad and copy & paste the contents of.

On that car, the ECU uses K-line for diagnostics, but it's connected directly to the K-line like every other module. Instead the K-Line goes to the Instrument Cluster, where it can be interrupted during immobilizer negotiations. It comes out of the Cluster and goes to the ECU as "W". So the first thing I'd do on a 20 year old car with this kind of problem is pull the cluster and inspect the connectors/connections at the back of it. Use some contact cleaner/conditioner when you put 'em back together.

-Uwe-
 
   #5  

aspataro

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General note: Please don't use the [Print] function in VCDS to post data here; the formatting it produces is less than optimal for the forum. Instead, please use the [Copy] function in VCDS, or [Save], which will produce a plain text file in your Logs sub-folder that you can open with Notepad and copy & paste the contents of.

On that car, the ECU uses K-line for diagnostics, but it's connected directly to the K-line like every other module. Instead the K-Line goes to the Instrument Cluster, where it can be interrupted during immobilizer negotiations. It comes out of the Cluster and goes to the ECU as "W". So the first thing I'd do on a 20 year old car with this kind of problem is pull the cluster and inspect the connectors/connections at the back of it. Use some contact cleaner/conditioner when you put 'em back together.

-Uwe-
Well, that did it.. thank you so much!! The contacts seemed fine, but just gave the contacts a little spray and it worked!

Just out of curiosity, what do you mean by "goes to the ECU as 'W'"?
 
   #6  

Uwe

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Just out of curiosity, what do you mean by "goes to the ECU as 'W'"?
The line/wire between the Cluster and the ECU is labelled 'W' in the wiring diagrams.

-Uwe-
 
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