If both windows are droping i would look at the closure circuit and check for induced voltage or short to earth.If ok check all connections for pin movement.I would then be looking at the door lock micro switches for false signal for closure command or the pump for internal fault.Heres some code variants,i know it japan but the uk spec doesnt have the window closure valueSelf-diagnosis of central locking system
Encoding table for vehicles in Japan
Encoding table for TT Roadster with manual convertible top and TT Coupe as of CW 18.00:
Note:
- ◆ Before any changes are made, establish existing coding => Page 01-65.
Basic encoding for central locking (CL) without anti-theft alarm (ATW)
6656
6784 1)
Basic encoding for central locking (CL) with anti-theft alarm (ATW)
6666
6794 1)
In addition to the basic encoding customers can be offered the following extras:
without ATW
with ATW
- Security central locking (basic code + 4)
6660
6670
- Automatic locking of vehicle above a speed of approx. 20 km/h (basic code + 32)
6688
(with SCL 6692)
6698
(with SCL 6702)
Right-hand drive version vehicles
without ATW 1)
with ATW 1)
- Security central locking (basic code + 4)
6788
6798
- Automatic locking of vehicle as of a speed of approx. 20 km/h (basic code + 32)
6816
(with SCL 6820)
6826
(with SCL 6830)
1) Right-hand drive version vehicles
Encoding table for TT Roadster with semi-automatic convertible top as of CW 18.00
Note:
- ◆ Before any changes are made, establish existing coding => Page 01-65.
Basic encoding for central locking (CL) without anti-theft alarm (ATW)
6672
6800 1)
Basic encoding for central locking (CL) with anti-theft alarm (ATW)
6682
6810 1)
In addition to the basic encoding customers can be offered the following extras:
without ATW
with ATW
- Security central locking (basic code + 4)
6676
6686
- Automatic locking of vehicle as of a speed of approx. 20 km/h (basic code + 32)
6704
(with SCL 6708)
6714
(with SCL 6718)
Right-hand drive version vehicles
without ATW 1)
with ATW 1)
- Security central locking (basic code + 4)
6804
6814
- Automatic locking of vehicle as of a speed of approx. 20 km/h (basic code + 32)
6832
(with SCL 6836)
6842
(with SCL 6846)
1) Right-hand drive version vehicles
Compilation of the code for TT Roadster with semi-automatic convertible top up to CW 18.00
The standard code is the sum total of the following
- Confirming remote opening (flashes 2x)
+
4096
- Hazard warning lights flash on closing/locking via radio remote control
+
512
- Automatic closing/locking via radio remote control
+
64
- Semi-automatic convertible top
+
16
- Anti-theft alarm (ATW) is activated
+
8
- Confirming ATW flashes
+
2
Total (Code):
=
4698
Compilation of the code for TT Roadster with semi-automatic convertible top as of CW 18.00
The standard code is the sum total of the following
- Confirming remote opening (flashes 2x)
+
4096
- Confirming remote locking (flashes 1x)
+
512
- Window lifter logic, USA
+
2048
- Automatic closing/locking via radio remote control
+
64
- Semi-automatic convertible top
+
16
- Anti-theft alarm (ATW) is activated
+
8
- Confirming ATW flashes
+
2
Total (Code):
=
6746
Compilation of the code for TT Roadster with semi-automatic convertible top as of CW 27.01
The standard code is the sum total of the following:
- Confirming remote opening (flashes 2x)
+
4096
- Confirming remote locking (flashes 1x)
+
512
- Window lifter logic, USA
+
2048
- Alarm cycle sounder for ROW
+
256
- Automatic closing/locking via radio remote control
+
64
- Semi-automatic convertible top
+
16
- Anti-theft alarm (ATW) is activated
+
8
- Confirming ATW flashes
+
2
Total (Code):
=
7002
Compilation of the code for TT Roadster with semi-automatic convertible top in Great Britain as of CW 18.00
The standard code is the sum total of the following:
- Confirming remote opening (flashes 2x)
+
4096
- Confirming remote locking (flashes 1x)
+
512
- Window lifter logic, USA
+
2048
- RHD
+
128
- Automatic closing/locking via radio remote control
+
64
- Semi-automatic convertible top
+
16
- Anti-theft alarm (ATW) is activated
+
8
- Confirming ATW flashes
+
2
Total (Code):
=
6874
Compilation of the code for TT Roadster with semi-automatic convertible top in Japan as of CW 18.00
The standard code is the sum total of the following:
- Confirming remote opening (flashes 2x)
+
4096
- Confirming remote locking (flashes 1x)
+
512
- Window lifter logic, USA
+
2048
- RHD
+
128
- Semi-automatic convertible top
+
16
- Anti-theft alarm (ATW) is activated
+
8
- Confirming ATW flashes
+
2
Total (Code):
=
6810
I dont think i will be able to send wiring diagrams.