'96-2001 VW T4 Module Communication Error.

   #1  
I

INSTG8R

Verified VCDS User
Verified
Joined
Aug 22, 2023
Messages
18
Reaction score
0
Location
Western Australia
VCDS Serial number
C?ID=551568
When using my Hex-net via usb cable it will auto-scan perfect. But when I try to connect to individual module's to program them, it will only connect to 2 out of the entire list. All others throw an error. No Communication with Controller. I have tried restarting the VCDS software, restarting my computer, different usb ports, engine running and off with ignition on, I have reset the Hex-net device all with no success. The led's on the device are as they should be and when I access Options and click Test I get the Ok pop up. I need to programme the Auto-Trans code as the vehicle is now manual and the TCM has been removed. I understand the Engine code also need to be re-programmed to show the correct Manual Gearbox is fitted. I am able to program the Instrument panel and the CAN module but that is all. I have checked the wiring harness for any wiring problems. There are no obvious issues there. Not sure where to go from here. Any suggestions please?
 
   #2  
D

Derek

VCDS Distributor
VCDS Distributor
Joined
Feb 19, 2014
Messages
963
Reaction score
767
Location
UK (ilexa)
VCDS Serial number
C?ID=56983
Hello.

Would you post the autoscan please so the Ross-Tech engineers can see the module details

Sticky - How to post an Auto-Scan

Using the classic, Windows-based VCDS: Also, please wrap your Auto-Scan data in CODE tags, like this: Chassis Type: 4G0 Scan: 01 02 03 05 08 09 0E 10 13 15 16 17 19 28 36 3B 3C 42 44 46 47 52 53 55 56 5F 62 72 82 84 85 8B 8E 8F 90 VIN: WAUBGAFC5CN015352 01-Engine -- Status: OK...
forums.ross-tech.com forums.ross-tech.com

Best regards
Derek
 
   #3  
Uwe

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
54,985
Reaction score
37,126
Location
USA
VCDS Serial number
HC100001
INSTG8R said:
Any suggestions please?
Click to expand...
First, please verify that the check box labelled "Bypass DoIP" on the [Options] screen is checked, and if not, please check it, click [Save], then exit and re-start VCDS.

-Uwe-
 
   #4  
I

INSTG8R

Verified VCDS User
Verified
Joined
Aug 22, 2023
Messages
18
Reaction score
0
Location
Western Australia
VCDS Serial number
C?ID=551568
Derek said:
Hello.

Would you post the autoscan please so the Ross-Tech engineers can see the module details

Sticky - How to post an Auto-Scan

Using the classic, Windows-based VCDS: Also, please wrap your Auto-Scan data in CODE tags, like this: Chassis Type: 4G0 Scan: 01 02 03 05 08 09 0E 10 13 15 16 17 19 28 36 3B 3C 42 44 46 47 52 53 55 56 5F 62 72 82 84 85 8B 8E 8F 90 VIN: WAUBGAFC5CN015352 01-Engine -- Status: OK...
forums.ross-tech.com forums.ross-tech.com

Best regards
Derek
Click to expand...
Code: 
Monday,15,July,2024,15:31:50:04211
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64(Parallels)
VCDS Version 24.5.0.0 (x64)  HEX-NET2 CB: 0.4643.5
Data version: 20240429 DS355.0
www.Ross-Tech.com


VIN: WV1ZZZ70Z3H123208   License Plate:


Chassis Type: 70 (7D - VW Transporter/Multivan (1996 > 2004))
Scan: 01 02 03 08 15 17 18 19 22 25 35 37 56
 
VIN: WV1ZZZ70Z3H123208   Mileage: 277560km-172467miles
-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1J0-909-60x-VW3.lbl
   Part No: 1J0 909 603 BL
   Component: AIRBAG VW3 -        V04 
   Coding: 16972
   Shop #: WSC 02757 
   VCID: 74BAB18D47AA289A43B-4B7B

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 7D0-920-xxx-17.lbl
   Part No: 7D0 920 802 R
   Component: T4-KOMBIINSTR. VDO V01  
   Coding: 03407
   Shop #: WSC 02757 
   VCID: 32367795FD3E66AA917-5185

1 Fault Found:
01315 - Transmission Control Module
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901
   Component: Gateway K<->CAN    0001 
   Coding: 00000
   Shop #: WSC 02757 
   VCID: 70B2BD9D33B214BAA73-5185

1 Fault Found:
01315 - Transmission Control Module
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 6X0-953-257.lbl
   Part No: 6X0 953 257
   Component: IMMO                0008 
   Coding: 00001
   Shop #: WSC 00000 
   VCID: 7DAC94A974E069D23C5-4B3D
   WV1ZZZ70Z3H123208     VWZ1Z0C2446945

No fault code found.

End----(Elapsed Time: 03:02, VBatt start/end: 14.3V/14.4V. VIgn 0.0V)------
 
Last edited by a moderator:
   #5  
Uwe

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
54,985
Reaction score
37,126
Location
USA
VCDS Serial number
HC100001
One thing that can cause no comms to the ECU is failing relay in the immobilizers. The K-Line doesn't go directly to the ECU. It goes to the immobilizer, through a relay in there, and comes out as the W line to the ECU. You may want to pull the immobilizer temporarily, put a jumper between K and W, and check whether you can then communicate with the ECU.

-Uwe-
 
   #6  
I

INSTG8R

Verified VCDS User
Verified
Joined
Aug 22, 2023
Messages
18
Reaction score
0
Location
Western Australia
VCDS Serial number
C?ID=551568
Uwe said:
One thing that can cause no comms to the ECU is failing relay in the immobilizers. The K-Line doesn't go directly to the ECU. It goes to the immobilizer, through a relay in there, and comes out as the W line to the ECU. You may want to pull the immobilizer temporarily, put a jumper between K and W, and check whether you can then communicate with the ECU.

-Uwe-
Click to expand...
Will give this a go and update. Many Thanks.
 
   #7  
I

INSTG8R

Verified VCDS User
Verified
Joined
Aug 22, 2023
Messages
18
Reaction score
0
Location
Western Australia
VCDS Serial number
C?ID=551568
Uwe said:
One thing that can cause no comms to the ECU is failing relay in the immobilizers. The K-Line doesn't go directly to the ECU. It goes to the immobilizer, through a relay in there, and comes out as the W line to the ECU. You may want to pull the immobilizer temporarily, put a jumper between K and W, and check whether you can then communicate with the ECU.

-Uwe-
Click to expand...
Hi Uwe, I followed your suggestions. First checking the "Bypass DoIP" in the options tab, saving, exiting VCDS, running test (ok) Auto scan (ok). Today I pulled the immobiliser and bridged the W & K lines, still no joy. I can open Modules/Channels
15: Air bags
17: Instruments
19: Can Gateway
25 Immobilizer

All other Modules/Channels pop up "No Response from Controller"

kOTRzd1.png
MsUO8s5.png
7djAPpT.png


Conducted another Auto scan. Results as follows.

Code: 
Wednesday,24,July,2024,14:57:37:04211
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64(Parallels)
VCDS Version 24.5.0.0 (x64)  HEX-NET2 CB: 0.4643.5
Data version: 20240429 DS355.0
www.Ross-Tech.com


VIN:    License Plate: 1HER594
Mileage: 277560km-172467mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 7D - VW Transporter/Multivan (1996 > 2004)
Scan: 01 02 03 08 15 17 18 19 22 25 35 37 56
 
   Mileage: 277560km-172467miles
-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1J0-909-60x-VW3.lbl
   Part No: 1J0 909 603 BL
   Component: AIRBAG VW3 -        V04 
   Coding: 16972
   Shop #: WSC 02757 
   VCID: 74BAB18D47AA289A43B-4B7B

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 7D0-920-xxx-17.lbl
   Part No: 7D0 920 802 R
   Component: T4-KOMBIINSTR. VDO V01  
   Coding: 03407
   Shop #: WSC 02757 
   VCID: 32367795FD3E66AA917-5161

1 Fault Found:
01315 - Transmission Control Module
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901
   Component: Gateway K<->CAN    0001 
   Coding: 00000
   Shop #: WSC 02757 
   VCID: 70B2BD9D33B214BAA73-5161

1 Fault Found:
01315 - Transmission Control Module
            49-10 - No Communications - Intermittent

End----(Elapsed Time: 03:13, VBatt start/end: 12.1V/12.1V. VIgn 0.0V)----
 
Last edited by a moderator:
   #8  
I

INSTG8R

Verified VCDS User
Verified
Joined
Aug 22, 2023
Messages
18
Reaction score
0
Location
Western Australia
VCDS Serial number
C?ID=551568
I have temp warning alarms and instrument light on since removing the Automatic Transmission. Cant help thinking the ECU cant see the Transmission Oil Temp sensor in the circuit which is triggering the alarm. An auto electrician has checked the Cooling system and all is within spec. Really want to code out the Automatic Transmission TCM to eliminate this as a cause. Just cant seem to get VCDS to communicate with the necessary modules. I'm pulling my hair out. What is left of it. The Auto Electrician is also stumped and is waiting for me to code out the TCM.
 
   #9  
Uwe

Uwe

Benevolent Dictator
Administrator
Joined
Jan 29, 2014
Messages
54,985
Reaction score
37,126
Location
USA
VCDS Serial number
HC100001
INSTG8R said:
Cant help thinking the ECU cant see the Transmission Oil Temp sensor in the circuit which is triggering the alarm.
Click to expand...
The ECU doesn't see or care about transmission temperature even with the original transmission in place.

If you've bridged the W & K lines and still have no comms to the ECU, check continuity between W at the immo box harness and the ECU's harness.

Of course I'm assuming the engine actually starts and runs with the Immo box installed?

-Uwe-
 
You must log in or register to reply here.
Back
Top