Help with ECU can-bus error please | 2016 T32 EURO5 140 4Motion

Geeky Philip

2016 T32 LWB 4Motion 140 High roof
VIP Member
I have spent hours searching and reading on this forum and others, so pretty please don't tell me to do a search ;)


I posted a previous thread about an intermittent can-bus issue I was having with my 2016 T32 EURO5 140 4Motion. I have now been working through the diagnostics and could do with so advice, please.

Using VCDS, I can see that when the problem occurs, the engine ECU does not respond. When the problem clears the engine ECU is reachable but reports errors. The other modules also report communication errors. So far, to get to this point, I have:

1) Checked and cleaned the connectors on the BCM and the engine ECU. There was no sign of corrosion or moisture.
2) I have replaced the BCM to ensure the CAN gateway is good.
3) I have checked all the earth/ground points that I can find.

The symptoms are:

1) Nearly all warning lights on
2) No speedo
3) Fuel gauge goes up then down
4) Door locks open and close (I expect closing because of random speedo data but not opening)
5) Sometimes the rev counter also does not work, but I can have rev but no speedo, or neither.
6) Sometimes, the van won't start, and you have to keep trying it, I am guessing this is a communication issue with the engine ECU.

The fault is there more often than not now, but when the speedo works, I can clear all the codes, and it is back to normal for a while.

I think it is either the can-bus cable between the BCM and the ECU or a failing ECU. My questions are:

1) Is it likely to be a wiring loom failure, and has anyone experienced this before?
2) Do you think it is a faulty ECU, and it is best to replace or repair it?

I have read that I will need to get the original ECU cloned to another ECU for the immobiliser data to be transferred. Also the van is remapped, can the map be transferred or is that coded to that ECU?

Any advice we be greatly appreciated!

I have posted a scan log below that is from when the engine ECU responds after an error.

Code:
Tuesday,14,January,2025,15:38:17:63649
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 24.7.1.0 (x64)  HEX-NET2 CB: 0.4643.5
Data version: 20240919 DS356.3
www.Ross-Tech.com


VIN: WV1ZZZ7HZGH14XXXX   License Plate:
Mileage: 226330km-140634mi   Repair Order:



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


Chassis Type: 7H-VN75 (7E0)
Scan: 01 03 04 09 15 17 19 22 25 5F 61 0B

VIN: WV1ZZZ7HZGH142351   Mileage: 226330km-140634miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 1010
04-Steering Angle -- Status: Sporadic communication error 1000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: Malfunction 1010
17-Instruments -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
22-AWD -- Status: Malfunction 1010
25-Immobilizer -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
61-Battery Regul. -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAAC)       Labels:. 03L-906-022-CAA.clb
   Part No SW: 03L 906 019 GR    HW: 03L 907 309 L
   Component: R4 2,0L EDC   H38 8434
   Revision: 22H38---    Serial number: 00000000000000 CVN: 2B514BAD
   Coding: 01194010230601080000
   Shop #: WSC 65535 000 00000
   ASAM Dataset: EV_ECM20TDI01103L906019GR 003005
   ROD: EV_ECM20TDI01103L906019FH_003.rod
   VCID: 0154EA8A11868012505-8054
   VINID: 9E606AAAA1D8A976011020C504E022302B

6 Faults Found:
7144 - Please Check DTC Memory in CAN Gateway (J533)
          U1008 00 [01101100] - -
          [Diagnostic interface for data busRead out DTC]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 3

                    Engine RPM: 1492.00 /min
                    Normed load value: 61.6 %
                    Vehicle speed: 255 km/h
                    Coolant temperature: 83 ∞C
                    Intake air temperature: 21 ∞C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 14.620 V
                    Unlearning counter according OBD: 40
                    ACC specified acceleration: 0.000 m/s≤
                    ACC control module: received status-Bits 0-7: 0
                    Active brake system error status-Bits 0-7: 0
                    Status of ACC/CCS acceleration interface-Bits 0-7: 0
                    Acceleration: 0.000 m/s≤
                    Engine status: COENG_RUNNING
                    Engine status-Test_Program_Co Eng st COMPU VERB UBYTE: 3

4451 - Powertrain Databus
          U0002 00 [10101100] - No Communications
          [High Speed CAN Communication BusPerformance]
          MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 5
                    Mileage: 226323 km
                    Date: 2025.01.13.
                    Time: 18:13:36

                    Engine RPM: 961.00 /min
                    Normed load value: 22.4 %
                    Vehicle speed: 255 km/h
                    Coolant temperature: 90 ∞C
                    Intake air temperature: 28 ∞C
                    Ambient air pressure: 1030 mbar
                    Voltage terminal 30: 13.780 V
                    Unlearning counter according OBD: 40
                    Limitation: accelerator pedal: 0.0 Nm
                    CAN status - engine control module-Bits 0-7: 8
                    Cruise Control System (CCS): status-Bits 0-7: 7
                    CAN status - transmission control module-Bits 0-7: 0
                    CAN status - brake control module 1-Bits 0-7: 0
                    CAN status - brake control module 2-Bits 0-7: 0
                    selected gear-Bits 0-7: 1

4710 - No Communications with Airbag Control Module
          U0151 00 [00101100] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 9
                    Mileage: 226323 km
                    Date: 2025.01.13.
                    Time: 18:13:23

                    Engine RPM: 1004.00 /min
                    Normed load value: 32.2 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 90 ∞C
                    Intake air temperature: 27 ∞C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 13.940 V
                    Unlearning counter according OBD: 40
                    Limitation: accelerator pedal: 0.3 Nm
                    CAN status - engine control module-Bits 0-7: 8
                    Cruise Control System (CCS): status-Bits 0-7: 4
                    CAN status - transmission control module-Bits 0-7: 0
                    CAN status - brake control module 1-Bits 0-7: 0
                    CAN status - brake control module 2-Bits 0-7: 0
                    selected gear-Bits 0-7: 1

4713 - No Communication with ABS Brake Control Module
          U0121 00 [00100000] - -
          [Lost Communication WithAnti-Lock Brake System (ABS) Control Module]
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 4
                    Mileage: 226323 km
                    Date: 2025.01.13.
                    Time: 18:13:23

                    Engine RPM: 1008.50 /min
                    Normed load value: 18.4 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 70 ∞C
                    Intake air temperature: 27 ∞C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 14.540 V
                    Unlearning counter according OBD: 40
                    Limitation: accelerator pedal: 0.0 Nm
                    CAN status - engine control module-Bits 0-7: 8
                    Cruise Control System (CCS): status-Bits 0-7: 4
                    CAN status - transmission control module-Bits 0-7: 0
                    CAN status - brake control module 1-Bits 0-7: 0
                    CAN status - brake control module 2-Bits 0-7: 0
                    selected gear-Bits 0-7: 0

4719 - No Communication with Diagnostic Gateway
          U0146 00 [00100000] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 2
                    Mileage: 226325 km
                    Date: 2025.01.14.
                    Time: 12:23:06

                    Engine RPM: 962.00 /min
                    Normed load value: 23.1 %
                    Vehicle speed: 255 km/h
                    Coolant temperature: 71 ∞C
                    Intake air temperature: 32 ∞C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 13.920 V
                    Unlearning counter according OBD: 39
                    Limitation: accelerator pedal: 0.0 Nm
                    CAN status - engine control module-Bits 0-7: 8
                    Cruise Control System (CCS): status-Bits 0-7: 0
                    CAN status - transmission control module-Bits 0-7: 0
                    CAN status - brake control module 1-Bits 0-7: 0
                    CAN status - brake control module 2-Bits 0-7: 0
                    selected gear-Bits 0-7: 0

4729 - Steering Effort Control Module
          U0130 00 [00101100] - No Communications
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 9
                    Mileage: 226323 km
                    Date: 2025.01.13.
                    Time: 18:13:23

                    Engine RPM: 1004.00 /min
                    Normed load value: 32.2 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 90 ∞C
                    Intake air temperature: 27 ∞C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 13.940 V
                    Unlearning counter according OBD: 40
                    Limitation: accelerator pedal: 0.3 Nm
                    CAN status - engine control module-Bits 0-7: 8
                    Cruise Control System (CCS): status-Bits 0-7: 4
                    CAN status - transmission control module-Bits 0-7: 0
                    CAN status - brake control module 1-Bits 0-7: 0
                    CAN status - brake control module 2-Bits 0-7: 0
                    selected gear-Bits 0-7: 1

Readiness: 1 1 0 0 X

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 7E0-907-37x-MK100ESC.clb
   Part No SW: 7E0 907 379 P    HW: 7E0 907 379 M
   Component: ESC           H05 0132
   Revision: 00000000    Serial number: 41216000000439
   Coding: 867E8098256684806178017BA48321A6390000
   Shop #: WSC 02739 790 50316
   ASAM Dataset: EV_Brake1ESCCONTIVN75XGP2 011001
   ROD: EV_Brake1ESCCONTIVN75XGP2_011.rod
   VCID: 3FD02C7227F236E2661-806A

10 Faults Found:
0166 - Steering angle sensor
          B1168 31 [00001000] - No Signal
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 10
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:03:27

0167 - Databus
          U1122 00 [00001000] - Implausible Message
          [no valid Steering Wheel Angle Sensor signal received while storage of CAN signal faults inhibited]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 7
                    Reset counter: 171
                    Mileage: 226261 km
                    Date: 2025.01.13.
                    Time: 13:13:24

8213 - Databus
          U1123 00 [00001000] - Received Error Message
          [ACAN: MO1_Sta_MotMo signal failure value]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 1
                    Fault Frequency: 12
                    Reset counter: 171
                    Mileage: 226262 km
                    Date: 2025.01.13.
                    Time: 13:16:59

8229 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: Airbag_03 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 64
                    Reset counter: 170
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:04:46

8269 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: mAllrad_1 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 67
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:03:28

8277 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: mGate_Komf_1 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 3
                    Reset counter: 170
                    Mileage: 226262 km
                    Date: 2025.01.13.
                    Time: 13:20:18

8281 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: mKombi_3 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 169
                    Mileage: 226325 km
                    Date: 2025.01.14.
                    Time: 12:19:57

8283 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: mAirbag_1 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 139
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:04:32

8322 - Databus
          U1121 00 [00001000] - Missing Message
          [ACAN: mMotor_10 frame timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 6
                    Reset counter: 169
                    Mileage: 226262 km
                    Date: 2025.01.13.
                    Time: 13:15:16

8340 - Databus
          U1200 00 [00001000] - Defective
          [ACAN: too many Bus Off events]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 3
                    Reset counter: 171
                    Mileage: 226261 km
                    Date: 2025.01.13.
                    Time: 13:13:24


-------------------------------------------------------------------------------
Address 04: Steering Angle (G085)       Labels:* 6R0-959-654.clb
   Part No SW: 6R0 959 654     HW: 6R0 959 654
   Component: LENKW.SENSOR  H07 0070
   Serial number: 22011713470206
   Coding: 01
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LWSKLOVW25X 005001
   ROD: EV_LWSKLOVW25X.rod
   VCID: 7EAE91766078FFEA2D7-802A

1 Fault Found:
335886 - Powertrain Databus
          U0001 00 [00001000] - Unspecified Malfunction
          [Datenbus Komfort defekt]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 13
                    Reset counter: 40
                    Mileage: 226262 km
                    Date: 2025.01.13.
                    Time: 13:16:18

                    Voltage terminal 15: 14.00 V
                    Voltage terminal 30: 14.20 V
                    Terminal 15 status: On


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7E0-937-BCM-V1.clb
   Part No SW: 7E0 937 090     HW: 7E0 937 090
   Component: BCM PQ25 Max4 H80 0736
   Revision: B9080001    Serial number: 0771 127160683
   Coding: F0A4303A0A212031002009F42C2B8C50FF0070FF60464D60320400220800
   Shop #: WSC 02737 534 191510
   VCID: 6882D72E127C515AF7B-803C

   Subsystem 1 - Part No SW: 7E0 959 801 K    HW: 7E0 959 801 K  Labels: 7E0-959-80X-V2.CLB
   Component: J386__TSG_FT  003 8656
   Serial number: KU0KU004051661254498
   Coding: 1400B0

   Subsystem 2 - Part No SW: 7E0 959 802 P    HW: 7E0 959 802 P  Labels: 7E0-959-80X-V2.CLB
   Component: J387__TSG_BT  003 0653
   Serial number: KU0KU009051661309072
   Coding: 0400A0

3 Faults Found:
03432 - Activation of Right Parking Light
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 226201 km
                    Time Indication: 0
                    Date: 2019.06.05.
                    Time: 14:24:09

00978 - Lamp for Low Beam; Left (M29)
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 226201 km
                    Time Indication: 0
                    Date: 2019.06.05.
                    Time: 14:24:52

00979 - Lamp for Low Beam; Right (M31)
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 226201 km
                    Time Indication: 0
                    Date: 2019.06.05.
                    Time: 14:24:52


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 G    HW: 7E0 959 655 G
   Component: VW10Airbag01N H08 0018
   Revision: --------    Serial number: 003V3000R76Y Dataset Number: 7E0003V____ 0843
   Coding: 00000000000000000000000000000000314E
   Shop #: WSC 02734 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVW12X 001028
   ROD: EV_AirbaVW10BPAVN750.rod
   VCID: 3A265D663CD013CA51F-806E

8 Faults Found:
12670208 - Databus
          U1122 00 [00001000] - Implausible Message
          [Kombi1-3 Time Out Error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 86
                    Reset counter: 170
                    Mileage: 226259 km
                    Date: 2025.01.13.
                    Time: 13:07:37

12656896 - Databus
          U1122 00 [00001000] - Implausible Message
          [Bremse8 Time Out Error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 118
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:04:40

12666368 - Databus
          U1122 00 [00001000] - Implausible Message
          [Diagnose Time Out Error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 103
                    Reset counter: 170

12674816 - Databus
          U1122 00 [00001000] - Implausible Message
          [VIN Time Out Error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 91
                    Reset counter: 170
                    Mileage: 226259 km
                    Date: 2025.01.13.
                    Time: 13:06:03

12583168 - Powertrain Databus
          U0001 00 [10001000] - Unspecified Malfunction
          [Drive Train CAN Communication Bus defect]
          MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 254

12583424 - Powertrain Databus
          U0002 00 [00001000] - No Communications
          [Drive Train CAN Communication Bus no signal/communication]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 5
                    Reset counter: 170

9682162 - Multiple collision brake
          B13BC F2 [00001000] - No function
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 1

12656896 - Databus
          U1122 00 [00001000] - Implausible Message
          [Bremse8 Time Out Error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 118
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:04:40


-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 7E0 920 960 L    HW: 7E0 920 960 L
   Component: KOMBI         H05 1007
   Serial number: 00000000000000
   Coding: 470B010100
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A05730
   ROD: EV_Kombi_UDS_VDD_RM09_005_VW25.rod
   VCID: 32367546E4A0EB8A99F-8066

3 Faults Found:
12656896 - Function Restricted due to Missing Message(s)
          U1111 00 [00001000] - -
          [Steuerger‰t f¸r Bremse: keine Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 254
                    Reset counter: 171
                    Mileage: 226261 km
                    Date: 2025.01.13.
                    Time: 13:13:40

12669184 - Function Restricted due to Missing Message(s)
          U1111 00 [00001000] - -
          [Steuerger‰t f¸r Airbag: keine Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 254
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:04:32

12653568 - Function Restricted due to Missing Message(s)
          U1111 00 [00001000] - -
          [Steuerger‰t f¸r Allrad: keine Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 64
                    Reset counter: 171
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:03:28


-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 7E0-909-901.clb
   Part No SW: 7E0 909 901     HW: 7E0 937 090
   Component: GW-K-CAN TP20 H80 0736
   Revision: B9080001 
   Coding: 042305
   Shop #: WSC 02737 534 191510
   VCID: 6882D72E127C515AF7B-803C

6 Faults Found:
01312 - Powertrain Data Bus
            014 - Defective - Intermittent
             Freeze Frame:
                    Fault Status: 00101110
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 168
                    Mileage: 226323 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 18:11:51

01316 - ABS Control Module
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 171
                    Mileage: 226261 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 13:13:28

00778 - Steering Angle Sensor (G85)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 80
                    Reset counter: 171
                    Mileage: 226258 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 13:03:29

01321 - Control Module for Airbags (J234)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 171
                    Mileage: 226258 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 13:04:34

01324 - Control Module for All Wheel Drive (J492)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 65
                    Reset counter: 171
                    Mileage: 226258 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 13:03:30

03981 - Pause recommendation not available
            000 - - - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 167
                    Mileage: 226288 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 14:41:08


-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels:| 0CQ-907-554-V1.clb
   Part No SW: 0AY 907 554 L    HW: 0CQ 525 130 A
   Component: Haldex4Motion H53 7620
   Serial number: HA1-00030.03.16 Dataset Number: v1260x015G0 0000
   Coding: 0503
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_AllWheelContrHA1VW37X 002015
   ROD: EV_AllWheelContrHA1VW37X_002_VW36.rod
   VCID: 54FA13DEBE74C5BAAB3-8000

2 Faults Found:
16653 - Databus
          U1121 00 [00001000] - Missing Message
          [Lenkwinkelsensor -TO -- LWL_01]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 167
                    Mileage: 226281 km
                    Date: 2025.01.13.
                    Time: 14:36:24

16660 - Data Bus for Suspension
          U10A9 00 [00001000] - Defective
          [Data bus engine- bus off]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 254
                    Reset counter: 170
                    Mileage: 226258 km
                    Date: 2025.01.13.
                    Time: 13:03:27


-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234
   Component: IMMO          H05 1007
   Serial number:             
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
   ROD: EV_Immo_UDS_VDD_RM09_VW23.rod
   VCID: 6A86AD260CF0634AE1F-803E

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-ENT2.clb
   Part No SW: 1K8 035 150 L    HW: 1K8 035 150 L
   Component: MU-E-D-ER     055 7053
   Serial number: 29041600010786 Dataset Number: V03935239NF 0001
   Coding: 065700003C00000041111101008000001F0000860000010001
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_MUEnt4CGen2LGE 001032
   ROD: EV_MUEnt4CGen2LGE_VW32.rod
   VCID: 2E0E6136F098CF6AFD7-807A

1 Fault Found:
6702 - Databus
          U1121 00 [00001000] - Missing Message
          [ESP: no communication]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 175
                    Reset counter: 171
                    Mileage: 226261 km
                    Date: 2025.01.13.
                    Time: 13:13:29

                    Voltage terminal 30: 14.1 V
                    Network diagnosis-Status: Not available


-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840)       Labels:. 1K0-907-534.clb
   Part No SW: 7E0 907 534     HW: 7E0 937 090
   Component: Batt.regelung H80 0736
   Serial number: 0771 127160683
   Coding: 030B1A73
   Shop #: WSC 02739 790 00000
   VCID: 6882D72E127C515AF7B-803C

   Subsystem 1 - Part No SW: 7E0 915 181 G    HW: 7E0 915 181 G
   Component: J367-BDM  H08 0223
   Serial number: 53116B49511261975368

2 Faults Found:
02252 - Generator
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 226201 km
                    Time Indication: 0
                    Date: 2019.06.05.
                    Time: 14:25:08

02256 - Quiescent Current
            001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 165
                    Mileage: 226219 km
                    Time Indication: 0
                    Date: 2019.06.06.
                    Time: 04:47:12


End----------(Elapsed Time: 01:12, VBatt start/end: 12.2V/12.3V)-----------
 
Sometimes it happens that the haldex coupling housing is damaged by corrosion, after which water gets there and the entire CAN drive fails.
Thank you.

I unplugged the can cable to the diff and it had water in it. I dried it, cleaned the contacts and all the errors have now cleared.
 
Thank you.

I unplugged the can cable to the diff and it had water in it. I dried it, cleaned the contacts and all the errors have now cleared.
I'm glad I could help you. It seems to me that just removing the water is not enough, we need to make sure that it does not get there again.

There is also a possibility that water is already flowing out of the haldex block itself.
 
I'm glad I could help you. It seems to me that just removing the water is not enough, we need to make sure that it does not get there again.

There is also a possibility that water is already flowing out of the haldex block itself.
I am going to take some time and have a look at it. It did not feel like it was sealed when I removed it.
 
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