Electric Tailgate / Trunk stopped opening with key 2017/18 T6

[Robert]

@Mark Peo can you post your adaptation map for 6D?

By the way:

03304 - Response Closing Status of Rear Right Door
008 - Implausible Signal - Intermittent

I started getting this fault randomly when my bus was less then one year old
and I had no issues with my both side electric doors to date.

00470 - Company Comfort Databus in Single Wire
012 - Electrical Fault in Circuit - Intermittent

This fault indicates CAN-BUS wiring issue.
Most likely damage(cut, corrosion) to one of two CAN-BUS wires.
Thanks to the design and implemented redundancy of the CAN-BUS the communication is not affected.
Controllers communicate with each other via (CAN-H and GND) or (CAN-L and GND).
I have never seen a loss of any controller functionality due to Single Wire CAN-BUS operation mode.

 

[Mark Peo]

@Mark Peo can you post your adaptation map for 6D?

By the way:

03304 - Response Closing Status of Rear Right Door
008 - Implausible Signal - Intermittent

I started getting this fault randomly when my bus was less then one year old
and I had no issues with my both side electric doors to date.

00470 - Company Comfort Databus in Single Wire
012 - Electrical Fault in Circuit - Intermittent

This fault indicates CAN-BUS wiring issue.
Most likely damage(cut, corrosion) to one of two CAN-BUS wires.
Thanks to the design and implemented redundancy of the CAN-BUS the communication is not affected.
Controllers communicate with each other via (CAN-H and GND) or (CAN-L and GND).
I have never seen a loss of any controller functionality due to Single Wire CAN-BUS operation mode.

Had a look today for the trunk control module, located at the right D pillar. Unplugged each plug to find the multi plug shows signs of corrosion and the middle plug (possibly power) also has some corrosion as per the photos.

Another problem has also developed after i checked the two modules at the D pillar on the left in relation to the sliding door modules. After unplugging and reconnecting (no corrosion on any pins) the left door will not open eithe on the key or by the button on the dashboard or by the handle. When activating the right door, the left did open slightly. Scanning wit VCDS say
0D-Slide Door, Left - Status: cannot be reached
-------------------------------------------------------------------------------
Address 0D: Slide Door, Left
Cannot be reached

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

and the following for CAN Gateway

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7E0-909-901.clb
Part No SW: 7E0 909 901 HW: 7E0 937 090 C
Component: GW-K-CAN TP20 H82 0752
Revision: B9082001
Coding: 042307
Shop #: WSC 02739 534 130884
VCID: 68D541689B8940D663-803C

3 Faults Found:
00470 - Company Comfort Databus in Single Wire
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 2
Fault Frequency: 3
Reset counter: 195
Mileage: 0 km
Time Indication: 0
Date: 2019.07.01.
Time: 15:10:18

03604 - Control Module Auomatic Sliding Door, Rear Left
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 154
Mileage: 138029 km
Time Indication: 0
Date: 2019.07.01.
Time: 14:35:05

00317 - Rear Lid Control Module (J605)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 195
Mileage: 138029 km
Time Indication: 0
Date: 2019.07.01.
Time: 15:20:23

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (J605) Labels:| 7N0-959-107.clb
Part No SW: 7E0 959 107 A HW: 7E0 959 107
Component: HDSG-Modul H02 0653
Revision: 31002002 Serial number: 040801620 Dataset Number: 7E0771V____ 0007
Coding: 19730D4002
Shop #: WSC 12345 123 12345
ASAM Dataset: EV_HDSGVN46T 203001
ROD: EV_HDSGVN46T.rod
VCID: 2C5DFD7847F1ACF647-8078

3 Faults Found:
0051 - Hall Sensors in Motor 1 for Rear Lid
B1211 12 [00001000] - Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 3
Fault Frequency: 1
Reset counter: 40
Mileage: 138029 km
Date: 2000.00.00
Time: 00:00:00

Voltage terminal 30: 12.32 V

0053 - Hall Sensors in Motor 2 for Rear Lid
B120A 15 [00001000] - Open or Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 3
Fault Frequency: 1
Reset counter: 40
Mileage: 138029 km
Date: 2000.00.00
Time: 00:00:00

Voltage terminal 30: 12.32 V

0068 - Warning Buzzer for Rear Lid
B11DF 13 [00001000] - Open Circuit
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 3
Fault Frequency: 1
Reset counter: 40
Mileage: 0 km
Date: 2000.00.00
Time: 00:00:00

Voltage terminal 30: 12.32 V


-------------------------------------------------------------------------------
Address 78: Slide Door, Right Labels: None
VCID: 55AB789CBCFBCD3EC8-FFFE


End-------------------------(Elapsed Time: 04:28)--------------------------

The scan would not get past address 78 for the slide door right.



Any suggestions how to clean the connectors on the multiplug? Can it be split?

Cheers

 

[Robert]

Clean all connectors and pins with any electrical contact cleaner spray (DO NOT USE WD40!).
You can use cotton swabs or anything similar.
After cleaning I would recommend to perform a series of "plug in/plug out" actions of all affected connectors.
Next clear all fault codes and double check if they don't come back.
If they do, then get back to cleaning.

Once all initial functionality has been restored I would suggest the following.
Unplug all connectors in question and apply a little bit of grease to electrical contacts on the "socket" side and replug it together.
Any future water ingress will not cause contact corrosion and chances of disturbing electrical continuity are going to be seriously minimised.

Please post adaptation map of your tailgate controller 6D.

 

[Mark Peo]

Clean all connectors and pins with any electrical contact cleaner spray (DO NOT USE WD40!).
You can use cotton swabs or anything similar.
After cleaning I would recommend to perform a series of "plug in/plug out" actions of all affected connectors.
Next clear all fault codes and double check if they don't come back.
If they do, then get back to cleaning.

Once all initial functionality has been restored I would suggest the following.
Unplug all connectors in question and apply a little bit of grease to electrical contacts on the "socket" side and replug it together.
Any future water ingress will not cause contact corrosion and chances of disturbing electrical continuity are going to be seriously minimised.

Please post adaptation map of your tailgate controller 6D.

Thanks, I’ll have a look tomorrow and try work out the adaption map for you.

Any thoughts on why I’ve lost connection to the left side door module after I unplugged connections to check those for corrosion?

 

[Mark Peo]

Clean all connectors and pins with any electrical contact cleaner spray (DO NOT USE WD40!).
You can use cotton swabs or anything similar.
After cleaning I would recommend to perform a series of "plug in/plug out" actions of all affected connectors.
Next clear all fault codes and double check if they don't come back.
If they do, then get back to cleaning.

Once all initial functionality has been restored I would suggest the following.
Unplug all connectors in question and apply a little bit of grease to electrical contacts on the "socket" side and replug it together.
Any future water ingress will not cause contact corrosion and chances of disturbing electrical continuity are going to be seriously minimised.

Please post adaptation map of your tailgate controller 6D.

Robert, adaption file attached. Opened the plug today that exposed the extent of the corrosion with a snapped wire. Have had to order some plugs and wire to do a repair.

Still having issues with the side door after checking connections on the controller.

Address 0D: Slide Door, Left
Cannot be reached

Older scan in January was as follows

Address 0D: Slide Door, Left Labels: Redir Fail!
Part No: 7E0 959 243 D
Component: Schiebetuer-SG 407 0328
Shop #: WSC 02739 790 00000
VCID: 3065E908A3D9C8167B-8064

No fault code found.
Then this in Address 19 CAN Gateway
Address 19: CAN Gateway (J533) Labels:. 7E0-909-901.clb
Part No SW: 7E0 909 901 HW: 7E0 937 090 C
Component: GW-K-CAN TP20 H82 0752
Revision: B9082001
Coding: 042307
Shop #: WSC 02739 534 130884
VCID: 68D541689B8940D663-803C

3 Faults Found:
00470 - Company Comfort Databus in Single Wire
011 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00101011
Fault Priority: 2
Fault Frequency: 2
Reset counter: 199
Mileage: 138283 km
Time Indication: 0
Date: 2019.07.03.
Time: 19:56:48

00470 - Company Comfort Databus in Single Wire
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 2
Fault Frequency: 2
Reset counter: 199
Mileage: 138283 km
Time Indication: 0
Date: 2019.07.03.
Time: 13:32:16

03604 - Control Module Auomatic Sliding Door, Rear Left
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 159
Mileage: 138283 km
Time Indication: 0
Date: 2019.07.03.
Time: 13:28:47
Then the scan wont get past Address 78 for the right door
Address 78: Slide Door, Right Labels: None
VCID: 55AB789CBCFBCD3EC8-FFFE


Any further help would be much appreciated

 

[Mark Peo]

Still having issues with the side door after checking connections on the controller.

Address 0D: Slide Door, Left
Cannot be reached

Ignore this as i have now managed to get the door active.

Just the tailgate to sort. The plugs i ordered are not quite right so need to find the correct ones to re-pin.