VAG-COM communication error, no ABS, rear view camera, parking sensors,etc.

[iampivot]

I've recently had my rear view camera no longer working, the rear electric boot not opening properly, and today a lot of dahsboard lights coming on, eg. no abs speed sensors, no parking sensors etc. Am wondering if I can have bad / corroded wiring or a faulty gateway? I tried scanning with VAG-COM, but half the time it says "Unable to communicate". If I try again, half of the time it works. I got halfway through the auto-scan after trying a few times. I also managed to save each error manually by retrying.

Any ideas?

[shortened]

VCDS Version 19.6.2.0 (x64)
Data version: 20190930 DS308.0
[...]
Chassis Type: 3C-VW46 (7N0)
Scan: 01 02 03 08 09 10 15 16 17 19 25 2E 37 42 44 46 4C 4F 52 53
          56 61 62 6C 6D 72 77

VIN: WVWZZZ3CZDE0XXXXX   Mileage: 220840km-137223miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
33-Flux Capacitor -- Status: Malfunction 0010
37-Navigation -- Status: Malfunction 0010
44-Steering Assist -- Status: Malfunction 0010
53-Parking Brake -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
6C-Back-up Cam. -- Status: Cannot be reached 1100
 
-------------------------------------------------------------------------------
Address 01: Engine (CDA)       Labels:. 06J-907-115-CDA.clb
   Part No SW: 06J 906 027 DE    HW: 06J 907 309 B
   Component: MED17.5.2        05 5359  
   Revision: PAH04---    Serial number: VWZCZ000000000
   Coding: 0404000C24070160
   Shop #: WSC 40139 959 131616
   VCID: 71C70889681165C758-8025

1 Fault Found:
053271 - Please Check Fault Codes in Control Module for ABS Brakes 
               U1017 - 015 - 
             Freeze Frame:
                    Fault Status: 01101111
                    Fault Priority: 0
                    Fault Frequency: 2
                    Reset counter: 255
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:04

             Freeze Frame:
                    RPM: 1538 /min
                    Load: 23.9 %
                    Speed: 70.0 km/h
                    Temperature: 97.0∞C
                    Temperature: 42.0∞C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.081 V

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 0AM-927-769.clb
   Part No SW: 0AM 300 058 Q    HW: 0AM 927 769 D
   Component: GSG DSG AG7     431 6563  
   Revision: 00043014    Serial number: CU501511237286
   Coding: 0000020
   Shop #: WSC 01049 002 1048576
   VCID: 3FA39EB16EC5C3B79E-806B

1 Fault Found:
006279 - Wheel-Speed Signal from ABS Control Module 
               P1887 - 000 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 0
                    Fault Frequency: 9
                    Reset counter: 10
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:04


-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 3AA-614-109.clb
   Part No SW: 3AA 614 109 BK    HW: 3AA 614 109 BK
   Component: J104   C2 450M VDF5 0024  
   Revision: --H07---    Serial number: 00000005930578
   Coding: 0001914
   Shop #: WSC 05311 000 00000
   VCID: 77D3369106753BF796-8023

2 Faults Found:
00290 - ABS Wheel Speed Sensor; Rear Left (G46) 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 1
                    Fault Frequency: 5
                    Reset counter: 245
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:04

             Freeze Frame:
                    Speed: 68.0 km/h
                    Hex Value: 0x0001
                    Bin. Bits: 00000000 00000000
                    Voltage: 13.00 V
                    Bin. Bits: 00011111
                    Count: 18
                    Hex Value: 0x0000

01325 - Control Module for Tire Pressure Monitoring (J502) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 9
                    Reset counter: 245
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:14

             Freeze Frame:
                    Speed: 68.0 km/h
                    Hex Value: 0x0000
                    Bin. Bits: 00000000 00000000
                    Voltage: 13.00 V
                    Bin. Bits: 00011111
                    Count: 191
                    Hex Value: 0x0000

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 3AA-937-087.clb
   Part No SW: 3AA 937 087 F    HW: 3AA 937 087 F
   Component: BCM PQ47 M    421 0465  
   Revision: BA421001    
   Coding: 0008000000000000009802805400006403510088426D8D60648046200041
   Shop #: WSC 05311 000 00000
   VCID: 3D5FE4B9A4C9D1A78C-8069

   Subsystem 1 - Part No: 3AC 955 119   Labels: 1KX-955-119.CLB
   Component: Wischer 21061  26  0612 
   Coding: 00B795

   Subsystem 2 - Part No: 1K0 955 559 AH  Labels: 1K0-955-559-AG.CLB
   Component: RLS 260612 05  54  0403 
   Coding: 0230ED

1 Fault Found:
02739 - Bulb for Tail/Brake Light; Right 
            010 - Open or Short to Plus - Intermittent
             Freeze Frame:
                    Fault Status: 00101010
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 10
                    Mileage: 220530 km
                    Time Indication: 0
                    Date: 2015.03.03
                    Time: 00:40:55

             Freeze Frame:
                        Term 15 Off
                    Voltage: 12.30 V
                        OFF
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J791)       Labels:| 3AA-919-475.clb
   Part No SW: 3AA 919 475 L    HW: 4H0 919 475 E
   Component: PARKHILFE PLA H06 0025  
   Revision: --------    Serial number: 56261216601722
   Coding: 349106
   Shop #: WSC 99999 1023 2097151
   ASAM Dataset: EV_EPHVA2C000000000 002008
   ROD: EV_EPHVA2C000000000.rod
   VCID: 44A9915DCF23A06FC3-8011

1 Fault Found:
13637396 - Databus 
          U1123 00 [009] - Received Error Message
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 3
                    Reset counter: 245
                    Mileage: 220785 km
                    Date: 2020.10.19
                    Time: 15:06:03
-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 0AM-927-769.clb
   Part No SW: 0AM 300 058 Q    HW: 0AM 927 769 D
   Component: GSG DSG AG7     431 6563  
   Revision: 00043014    Serial number: CU501511237286
   Coding: 0000020
   Shop #: WSC 01049 002 1048576
   VCID: 3FA39EB16EC5C3B79E-806B

1 Fault Found:
006279 - Wheel-Speed Signal from ABS Control Module 
               P1887 - 000 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 0
                    Fault Frequency: 9
                    Reset counter: 10
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:04


-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 3AA-614-109.clb
   Part No SW: 3AA 614 109 BK    HW: 3AA 614 109 BK
   Component: J104   C2 450M VDF5 0024  
   Revision: --H07---    Serial number: 00000005930578
   Coding: 0001914
   Shop #: WSC 05311 000 00000
   VCID: 77D3369106753BF796-8023

2 Faults Found:
00290 - ABS Wheel Speed Sensor; Rear Left (G46) 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 1
                    Fault Frequency: 5
                    Reset counter: 245
                    Mileage: 220785 km
                    Time Indication: 0
                    Date: 2015.03.12
                    Time: 15:06:04

             Freeze Frame:
                    Speed: 68.0 km/h
                    Hex Value: 0x0001
                    Bin. Bits: 00000000 00000000
                    Voltage: 13.00 V
                    Bin. Bits: 00011111
                    Count: 18
                    Hex Value: 0x0000

[...]
-------------------------------------------------------------------------------
Address 09: Cent. Elect.
Cannot be reached
Unable to communicate with address 09. Are you sure the doors are unlocked? 

[Hillbilly]

Sounds like what happens when your battery is well on the way out

[iampivot]

Hmm, didn't think about that. I'll put a charger on it overnight to see if it improves things.

The rear view camera can drop out if the cabling is bad though?

[Hillbilly]

Hmm, didn't think about that. I'll put a charger on it overnight to see if it improves things.

The rear view camera can drop out if the cabling is bad though?

Possibly but when my battery started dieing I got a dash full of lights and faults and things didnt work and a new battery fixed it but had to go to dealer to get faults cleared

It still started the TDI but wouldnt run the electrics

[Sharkie]

This is absolutely the battery. I have just been through this on my daughter's A1

Chassis Type: 8X-AU21 (8U0)
Scan: 01 02 03 08 09 10 15 16 17 19 25 42 44 46 52 55 5F 62 72

VIN: WAUZZZ8X7HB021217 Mileage: 59870km-37201miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000

Sad to say, but a charge will not fix this, it may help in the very very short term, but its likely a replacement will be required. ... Unless it somehow is not getting properly changed when driving. Incidentally, that was actually the main cause for the A1. A mostly dead battery (30% life left) and an issue with module 08 HVAC caused a drain on the battery at all times. The charging could simply not keep up with the continuous drain. Ended up with a new battery and a new HVAC module

[iampivot]

I did a charge overnight, and I managed to clear most errors. Still has some communication errors, so I agree I probably need a new battery. The rear view camera still has no communication though, so I believe it's either a gateway or cabling issue. The charger showed 13v this morning, but I believe a good battery should show more than that when charged?