VW T6 Diff Lock Stuck on

[bootsam]

Hi, I havent used the van for a few weeks now. Went to use it today to go to work, everything fine until I turn into works road, then I get the 'skipping' feeling. I note diff lock is activated. ? I never activated this. Now it wont deactivate? I have vcds at home, but obv at work right now (only 5mins from home). Any ideas anyone? I dont even know where the diff lock is, so any help appreciated. Thanks.

 

[DaveD]

First thing you'll need to find the diff lock switch. I wonder if you accidentally knocked it on during your journey to work?
Then try to switch the diff lock off as you use first and reverse gears to gently move the van backwards and forwards, effectively trying to release the tension in the locked diff so that it can release. If it doesn't release try applying some gentle steering input as you go backwards and forwards.
This should allow the diff lock to release itself.

 

[bootsam]

The switch is easy to see as its lit up. I never knocked it and it wont deactivate. I will have a go at what you suggest and report back in a moment.

 

[bootsam]

Lol, just went to van and the light is off the switch and the damned thing has reset itself.

Is my van haunted?

 

[bootsam]

Alas, when i drove home the error re-appeared. So, it would appear I have a diff lock fault. Pressing the diff lock switch in the cab has no effect. I'll plug the VCDS in at some point and post the messages. I assume it may be the solonoid. Would anyone know where this solonoid is located?

 

[Salty Spuds]

Alas, when i drove home the error re-appeared. So, it would appear I have a diff lock fault. Pressing the diff lock switch in the cab has no effect. I'll plug the VCDS in at some point and post the messages. I assume it may be the solonoid. Would anyone know where this solonoid is located?

*caveat, what I'm about to say maybe complete bo***x"
IF it was the solenoid, I can't see anything in the wiring that would provide feed back to illuminate the switch on the dash. I.E. if it was a straightforward solenoid fault & the solenoid was acting alone, the switch wouldn't illuminate. I'm more inclined to suspect a wiring/electrical fault that is activating the diff lock, the diff lock is working as it should, because it thinks it's received a valid command to activate, and the switch is illuminating. I think the fault lies in the control side, not the end component.

 

[Pauly]

*caveat, what I'm about to say maybe complete bo***x"
IF it was the solenoid, I can't see anything in the wiring that would provide feed back to illuminate the switch on the dash. I.E. if it was a straightforward solenoid fault & the solenoid was acting alone, the switch wouldn't illuminate. I'm more inclined to suspect a wiring/electrical fault that is activating the diff lock, the diff lock is working as it should, because it thinks it's received a valid command to activate, and the switch is illuminating. I think the fault lies in the control side, not the end component.

I think there is some sense in that
I guess the only way to really tell is to get a fault scan of the vehicle and see what, if anything, is reported

As a slight side thought, some of the systems (like elec sliding doors for example) use the dash button light to indicate faults so it is semi plausible the light you seeing is a fault report rather than an activation ?? (but i also could be talking bollox cos i dont actually know !)

 

[bootsam]

Thanks guys, I was thinking similar. Why would a failed solonoid fail in an ON position. We wont know until I VCDS. I'll do that tonight.

 

[WillWillWill]

Would anyone know where this solonoid is located?

Near side under the passenger seat, but outside the van, not inside.

One to engage, one to disengage.

 

[bootsam]

Eventually got round to vcds . I have a left rear wheel speed sensor fault (again) or maybe its from previous as i never cleared it??

The EGR one always seems to be there, but no effect. As are the headlight one.

Saturday,02,November,2024,12:26:47:10375
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.7.1.0 (x64)  HEX-V2 CB: 0.4643.4
Data version: 20240919 DS356.3
www.Ross-Tech.com


VIN: WV1ZZZ7HZHH086221   License Plate:
Mileage: 79750km-49554mi   Repair Order:



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


Chassis Type: 7H-VN75 (7E0)
Scan: 01 02 03 04 08 09 10 13 15 17 19 22 25 55 5F 61 0B

VIN: WV1ZZZ7HZHH086221   Mileage: 79750km-49554miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
61-Battery Regul. -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (2D2D2-CXEB)       Labels:. 04L-907-309-V2.clb
   Part No SW: 04L 906 056 KN    HW: 04L 907 445 A
   Component: R4 2.0l BTD   H03 3776 
   Revision: 23101001   
   Coding: 00254014436701080000
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_ECM20BTD03004L906056KN 004004
   ROD: EV_ECM20BTD03004L906056KN_004.rod
   VCID: 03539C29DB979062429-8056
   VINID: 9E606AAAA1D8A9860020608204504E739F

2 Faults Found:
15560 - EGR Sensor 1
          P046C 00 [01101100] - Implausible Signal
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 76981 km
                    Date: 2084.01.23
                    Time: 02:33:38

                    Engine RPM: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 25 ∞C
                    Intake air temperature: 17 ∞C
                    Ambient air pressure: 980 mbar
                    Voltage terminal 30: 12.648 V
                    Unlearning counter according OBD: 40
                    Mass airflow sensor 1 bank 1 airflow: raw value: 0.0 mg/stroke
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Specified value: -3.21 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value: -3.46 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Offset closed: 0.00 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Raw voltage: 2.498 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Cooling mode stop: 2.305 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Bypass operation stop: 2.800 V

25126 - Databus
          U1123 00 [00100000] - Received Error Message
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Mileage: 76981 km

                    Engine RPM: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 19 ∞C
                    Intake air temperature: 17 ∞C
                    Ambient air pressure: 980 mbar
                    Voltage terminal 30: 11.289 V
                    Unlearning counter according OBD: 2
                    Acceleration: 0.000 m/s≤
                    Vehicle speed: 0 km/h
                    Cruise Control System (CCS): status: Initialization
                    Drivetrain coordinator: ACC fault status-ACC is active despite EPB deceleration: No
                    Drivetrain coordinator: ACC fault status-ACC active: although TSK passive: No
                    Drivetrain coordinator: ACC fault status-Start off or stop request at stopping speed not set: No
                    Drivetrain coordinator: ACC fault status-Start off and stop request sent simultaneously: No
                    Drivetrain coordinator: ACC fault status-ACC active: although limiter active: No
                    Drivetrain coordinator: ACC fault status-ACC reactivates itself after locking: No
                    Drivetrain coordinator: ACC fault status-ACC sends undefined signals: No
                    Drivetrain coordinator: ACC fault status-ACC active although main switch off: No
                    Drivetrain coordinator: ACC fault status-ACC is active despite driver braking: No
                    Drivetrain coordinator: ACC fault status-ACC is active despite ESP/ASR passive sampling: No
                    Drivetrain coordinator: brake function status-ABS intervention: No
                    Drivetrain coordinator: brake function status-ESP intervention: No
                    Drivetrain coordinator: brake function status-EDL intervention: No
                    Drivetrain coordinator: brake function status-ASR intervention: No
                    Drivetrain coordinator: brake function status-MSR intervention: No
                    Drivetrain coordinator: brake function status-Driver braking: No
                    Drivetrain coordinator: brake function status-HDC active: No
                    Drivetrain coordinator: brake function status-ESP invokes TSK braking: No
                    Drivetrain coordinator: brake function status-EPB active: No
                    Drivetrain coordinator: brake function status-ASP intervention: No
                    Drivetrain coordinator: brake function status-ADS intervention: No
                    Drivetrain coordinator: brake function status-Stopping distance reduction2 warning jolt: No
                    Drivetrain coordinator: brake function status-ESP sampled passive (ESP off): No
                    Drivetrain coordinator: brake function status-ASR sampled passive (ASR off): No
                    Drivetrain coordinator: brake function status-ESP recognizes vehicle at rest: No
                    Drivetrain coordinator: brake function status-ACC stopping distance control active: No
                    Drivetrain coordinator: brake fault status-Deceleration sensor not available: No
                    Drivetrain coordinator: brake fault status-Deceleration sensor malfunction: No
                    Drivetrain coordinator: brake fault status-ESP system error: No
                    Drivetrain coordinator: brake fault status-ESP system malfunction due to inaccurate engine torque: No
                    Drivetrain coordinator: brake fault status-ESP indicates TSK message consistency error: No
                    Drivetrain coordinator: brake fault status-TSK/ESP handshake error: No
                    Drivetrain coordinator: brake fault status-ESP automatic engagement malfunction: No
                    Drivetrain coordinator: brake fault status-Brake light implausible: No

Readiness: N/A

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0BT 300 012 C    HW: 0BH 927 711 G
   Component: DSG DQ500-7A  H11 5302 
   Revision: 00H11V01    CVN: E785A3F3
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021_001_VW36.rod
   VCID: 2F3B0099279FC402F61-807A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 7E0-907-37x-MK100ESC.clb
   Part No SW: 7E0 907 379 Q    HW: 7E0 907 379 N
   Component: ESC           H06 0133 
   Revision: 00000000    Serial number: 42906000001544
   Coding: 307EC098656A84840C770378A683219379F700
   Shop #: WSC 02739 790 50316
   ASAM Dataset: EV_Brake1ESCCONTIVN75XGP2 011001
   ROD: EV_Brake1ESCCONTIVN75XGP2_011.rod
   VCID: 40D953258A014B7A1FB-8014

1 Fault Found:
4197 - Rear Left Wheel Speed Sensor
          C101C 14 [00001000] - Open or Short to Ground
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:39


-------------------------------------------------------------------------------
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: 01111613470554
   Coding: 01
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LWSKLOVW25X 005001
   ROD: EV_LWSKLOVW25X.rod
   VCID: 7EA5EDDDB075FD8A2D7-802A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 7E5-907-047.clb
   Part No SW: 7E0 907 047 AC    HW: 7E0 907 047 AC
   Component: Climatic-T5   H22 0708 
   Revision: 00001002   
   Coding: 0000000003
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_ClimaticT5 A01003
   ROD: EV_ClimaT5Basis_VN75.rod
   VCID: 6B83D489D30778229A9-803E

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7E0-937-BCM-V1.clb
   Part No SW: 7E0 937 090 B    HW: 7E0 937 090
   Component: BCM PQ25 Max4 H81 0744 
   Revision: B9081001    Serial number: 0982 317160166
   Coding: A1FC793A0A61341193284F606CEB8FF4C084738960CD79603204003F0860
   Shop #: WSC 02737 534 735210
   VCID: 2A0D118D1CFDA12A21F-807E

   Subsystem 1 - Part No: 5K7 955 559 C  Labels: 5K7-955-559.CLB
   Component: RLS 191016 04  42  0106
   Coding: 0228EE

   Subsystem 2 - Part No SW: 7E0 959 801 Q    HW: 7E0 959 801 Q  Labels: 7E0-959-80X-V2.CLB
   Component: J386__TSG_FT  003 0653
   Serial number: KU0KU003111663080582
   Coding: 1400B1

   Subsystem 3 - Part No SW: 7E0 959 802 Q    HW: 7E0 959 802 Q  Labels: 7E0-959-80X-V2.CLB
   Component: J387__TSG_BT  003 0653
   Serial number: KU0KU003111663087147
   Coding: 0400A1

   Subsystem 4 - Part No: 7E1 951 172
   Component: DWA-Sensor 00  001 0104
   Coding: 000000

   Subsystem 5 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501
   Coding: 000000

   Subsystem 6 - Part No: 7E1 951 172
   Component: DWA-Sensor 00  001 0104
   Coding: 000000

   Subsystem 7 - Part No SW: 7E0 959 442 A    HW: 7E0 959 442 A  Labels: 3C8-959-537.CLB
   Component: E221__MFL-DC1  H02 0103
   Serial number: 29160002250750106441
   Coding: B4FFFF

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 7E0-919-475.clb
   Part No SW: 7E0 919 475 AA    HW: 7N0 919 475
   Component: PARKHILFE 8K  H06 0212 
   Revision: --------    Serial number: 28261627801108
   Coding: 30810C
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_VW75XParkAssis8K 001012
   ROD: EV_VW75XParkAssis8K_001_VN75.rod
   VCID: 71BFC6E1F12B92F2A05-8024

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 7N0-907-572.clb
   Part No SW: 7N0 907 572 C    HW: 7E0 907 572
   Component: ACC Bosch PQx H03 0211 
   Serial number: 31101604404077 Dataset Number: 7E0114v____ 0009
   Coding: 00005000FE0779
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_ACCBEGVW361 001006
   ROD: EV_ACCBEGVW361.rod
   VCID: 363535FDD8C5F5CAB57-8062

7 Faults Found:
1067 - Brake Temperature
          C10DF 00 [00001000] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1058 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_CIS_ECD_NOTAVAILABLE]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1059 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_CIS_ESP_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1037 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_CIS_QDCACC_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:22:22

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1043 - Automatic Distance Control
          B10E7 F0 [00001000] - Disconnected
          [FAULT_CIS_TSK_IRREV_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1118 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_CIS_WHEEL_PULSE_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 3
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤

1081 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_CIS_WHEEL_RPM_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 3
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38

                    Control Module temperature: 19 ∞C
                    Voltage terminal 15: 11.8 V
                    Vehicle speed: 0.00 m/s
                    Acceleration: 0.00 m/s≤


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 H    HW: 7E0 959 655 H
   Component: VW10Airbag01S H08 0018 
   Revision: --------    Serial number: 003V4001L2N% Dataset Number: 7E0003V____ 0909
   Coding: 000000000000000000000000000000003153
   Shop #: WSC 02734 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVW12X 001028
   ROD: EV_AirbaVW10BPAVN750.rod
   VCID: 3B2324C9E3E728A24A9-806E

   Crash sensor for side airbag: driver side:
   Serial number: 3495ZRB4012578IUA0V

   Front Passenger's Side Airbag Crash Sensor:
   Serial number: 3505ZRB401I579TEF8G/

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 7E0 920 970 S    HW: 7E0 920 970 S
   Component: KOMBI         H03 1104 
   Serial number: 00000000000000
   Coding: 440F010300
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A05733
   ROD: EV_Kombi_UDS_VDD_RM09_005_VW25.rod
   VCID: 3A2D21CDECDD11AA51F-806E

No fault code found.

-------------------------------------------------------------------------------
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 H81 0744 
   Revision: B9081001   
   Coding: 042307
   Shop #: WSC 02737 534 735210
   VCID: 6889AB85C271533AF7B-803C

No fault code found.

-------------------------------------------------------------------------------
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: HA1-00023.09.16 Dataset Number: v1260x015G0 0000
   Coding: 0505
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_AllWheelContrHA1VW37X 002015
   ROD: EV_AllWheelContrHA1VW37X_002_VW36.rod
   VCID: 54F16F756E79C7DAAB3-8000

1 Fault Found:
16656 - Databus
          U1123 00 [00001000] - Received Error Message
          [Bremsensteuerger‰t - no speed signal]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 7
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:37


-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234
   Component: IMMO          H03 1104 
   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: 6A8DD18DDCFD612AE1F-803E

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:. 6R0-907-357.clb
   Part No SW: 6R0 907 357 C    HW: 6R0 907 357 B
   Component: AFS-ECU       005 0050 
   Revision: --------    Serial number: -------------- Dataset Number: V03600097E0 0001
   Coding: 0FCE020001000000
   Shop #: WSC 02757 790 50316
   ASAM Dataset: EV_HeadlRegulVWLWRCC 002006
   ROD: EV_HeadlRegulVWLWRCC.rod
   VCID: 3A2D21CDECDD11AA51F-806E

1 Fault Found:
13705985 - Databus
          U1123 00 [00001000] - Received Error Message
          [Fehlerwert im Signal BR3_Rad_kmh_HL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 6
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:38


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-STD2.clb
   Part No SW: 5C0 035 680 E    HW: 5C0 035 680 E
   Component: MU-S-ND-ER    H31 0359 
   Serial number: VWZAZ2S5348181 Dataset Number: V03935249AT 0001
   Coding: 065700013C00000011111101008808001F0100D6002001004F
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_MUStd4CTSAT 001022
   ROD: EV_MUStd4CTSAT_VW32.rod
   VCID: 2313FCA97B577062629-8076

   Data carrier:
   Subsystem 1 - Part No SW: 3G0 919 866 AQ    HW: -----------
   Component: ECE1 2017  --- 0730
   Serial number: --------------------

1 Fault Found:
15360256 - Component Protection
          U1101 00 [00001000] - Active
          [Anti-theft protection - component protection active (0xEA6100)]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 5
                    Reset counter: 142
                    Mileage: 0 km
                    Date: 2024.06.09.
                    Time: 21:42:14

                    Voltage terminal 30: 11.1 V


-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840)       Labels:. 1K0-907-534.clb
   Part No SW: 7E0 907 534     HW: 7E0 937 090
   Component: Batt.regelung H81 0744 
   Serial number: 0982 317160166
   Coding: 030B1A73
   Shop #: WSC 02739 790 00000
   VCID: 6889AB85C271533AF7B-803C

   Subsystem 1 - Part No SW: 7E0 915 181 K    HW: 7E0 915 181 K
   Component: J367-BDMConti  H03 1050
   Serial number: 75410903001611040844

No fault code found.

End----(Elapsed Time: 01:59, VBatt start/end: 11.7V/11.6V. VIgn 11.6V)-----

 

[bootsam]

Hi, can anyone who really understands these, please take a look. Many thanks.

 

[mmi]

I have a left rear wheel speed sensor fault (again) or maybe its from previous as i never cleared it??

1 Fault Found:
4197 - Rear Left Wheel Speed Sensor
          C101C 14 [00001000] - Open or Short to Ground
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 104
                    Mileage: 76981 km
                    Date: 2024.04.27.
                    Time: 01:16:39

It seems the fault has happened only once. Just to be sure you could clear the fault.

Anyways, almost all faults were triggered at 76981 km 2024.04.27 - any idea what happened then?

 

[bootsam]

I have cleared all the faults. I re-scanned and all is clear. However, that LH wheel speed sensor may re-occur.

I can switch the diff lock on/off with audible from the relay. It is no longer 'stuck' on. This was the original problem. It suddenly came on as I turned into my works road and then would not disengage or switch off.

I scanned and got the above from vcds. It's not moved since due to diff lock fault. I am curious of the diff lock fault and the lh wheel sensor. Why would it 'fault' to an on condition. Weird.

 

[Kind of Blue]

I think that wheel sensors can be a cause of many a problem.

 

[mmi]

then I get the 'skipping' feeling. I note diff lock is activated.

Do you mean you got BOTH steady light on dash AND also the button was illuminated yellow?

However, that LH wheel speed sensor may re-occur.

I can't see how this could connect to the diff-lock activation.

 

[Kind of Blue]

Do you mean you got BOTH steady light on dash AND also the button was illuminated yellow?


I can't see how this could connect to the diff-lock activation.

It can cause the 4Motion system to fail and anything else that might rely on comparing wheel speeds like ABS and so on. I am not educated in vehicle electromechanics but I would wonder if it might affect the rear differential lock because it has a relationship with the 4motion pre triggering and locking up. Something, seemingly so unimportant, can have a very profound effect on the rolling chassis and perhaps because the way vehicles are developed from a platform and then evolve, with programmers fiddling around with things to make something work. In a way these 4Motion vehicles with a diff lock can emulate far more dedicated 4x4 vehicles up to a point, ramp over approach and departure not as good. They can still get along quite well all things accepted. However the electronics have to be in top notch order to facilitate that and wheel sensors are a known weakness in the Transporter.

I have had one troublesome wheel sensor which was replaced in Chippenham by VW Dealer. They said they were having a problem getting one in the shop as we where waiting in the lounge. They then said they had acquired one and a few moments latter we were off. Evidently their was a shortage of wheel sensors.. may have been COVID or something I do not recall.. Move on another couple of years and I hade AWD system problems no 4 wheel drive no ABS no ABS no a lot of other things. As I keep saying I live completely off road so potentially it could be a big problem

Went to my VAG specialist. A wheel sensor fault. They changed it for a new one. " Why do you have a wheel sensor from a ( blar blar unrelated vehicle ) shook my head, a bit strange I thought. It was not until I nearly arrived home some 20 miles away when it struck me! The Chippenham VAG workshop (no longer there closed by COVID) had run out of wheel sensors but managed to find a generic one from another vehicle make and it got me by a couple of years. Until in inevitably failed.

Lately my diff lock wont work so I am wondering? I will have to book it in. Evidently wheel sensors are a problem they are commonly replaced because of faults. So perhaps we should all have new ones every couple of years?????

 

[mmi]

but I would wonder if it might affect the rear differential lock because it has a relationship with the 4motion pre triggering and locking up

The way the diff-lock engagement/disengagement is mechanized is actually very traditional - no computers involved.

When engaging it's just the button press which triggers a relay (the button is illuminated by the relay output), which then activates a vacuum solenoid which then (via the vacuum) operates the actuator at the diff-lock to engage the lock. The ABS gets information of the button press to know that driver has activated the lock - and turns on flashing light on the dash.​

​

The confirmation of the locked status (steady light on dash) comes from three "sensors" at the control element of the diff-lock itself. The ABS reads the status of the sensors to know when the diff-lock is actually engaged. When disengaging the same but in opposite direction. Thus the ABS has no way of controlling whether the diff-lock engages or not - it's only monitoring the status via the sensors.​

​

I hade AWD system problems no 4 wheel drive no ABS no ABS no a lot of other things.

Any dash warning lights? Any logged fault codes?
What do you mean "no ABS" - the anti-locking feature was not working at all,?
What other things specifically?
Any parts were replaced?

Lately my diff lock wont work so I am wondering?

Do you get the button light? Do you get a steady/flashing/no light - on dash?

 

[Kind of Blue]

The way the diff-lock engagement/disengagement is mechanized is actually very traditional - no computers involved.

When engaging it's just the button press which triggers a relay (the button is illuminated by the relay output), which then activates a vacuum solenoid which then (via the vacuum) operates the actuator at the diff-lock to engage the lock. The ABS gets information of the button press to know that driver has activated the lock - and turns on flashing light on the dash.​

​

The confirmation of the locked status (steady light on dash) comes from three "sensors" at the control element of the diff-lock itself. The ABS reads the status of the sensors to know when the diff-lock is actually engaged. When disengaging the same but in opposite direction. Thus the ABS has no way of controlling whether the diff-lock engages or not - it's only monitoring the status via the sensors.​

​

Any dash warning lights? Any logged fault codes?
What do you mean "no ABS" - the anti-locking feature was not working at all,?
What other things specifically?
Any parts were replaced?


Do you get the button light? Do you get a steady/flashing/no light - on dash?

When the systems started failing there was warning lights I do not remember what or the text. I was travelling up hill off road at the time and was just trying to keep going with momentum and front wheels scrabbling away as I bounced over smooth rocks on the way up. Just thinking its a long awkward reverse down the hill with overhanging woodland just great for tearing side mirrors off. The Haldex was not engaging the rear at all. I managed to get home the track was dry. I am fortunate in having 2 ways in though, One across fields with trackway at either all up hill from the property. Down hill was the way I had come up through woodland on an an old rocky trackway resembling interesting green lanes that snake around this part of wales. In poor conditions it is easier going down of naturally. Trees or branches occasionally fall across the way especially in the windy autumn and winter months. So occasionally on the way down one has to reverse up hill a distance. A bit of a pain when making an appointment or just trying to get somewhere for a particular time. i try to limit going out the top way in poor weather. Wet grass makes for difficult traction and tram lines caused by frequent passages can get quite deep. The latter is a long story. I only own part of the way up hill and non down hill and have had many a battle with adjacent land owners in either direction for one reason or other.

Anti lock braking was not working I could easily lock them up on the road when I next went out to the VAG specialist. He diagnosed a wheel sensor. My wife and I drove off to do some shopping a short time latter received a call all done. Collected the vehicle from a very busy garage and went home. All was working fine.

A few months latter rear diff lock stopped working. The light on the switch had stopped months earlier but the repeater in the instrument binical always lit up and it did operate. The vehicle was fine off road with it this way. Contrary to what I believe I have read on these pages somewhere. More recently the diff-lock has not been working no light on switch as before but now no light in the binical and it is most definitely not working. The vehicle wheels slip slightly off road before the engaging 4Motion does its stuff. The vehicle does not feel so tight as before as I often engaged the diff-lock to keep it free and now obviously it was not pre engaging the 4Motion so instead of all being ready and not slipping at all there was little slips and hesitation before it regained composure.

Oh, one other thing! The Anti slip regulation switch has stopped lighting up but it does in the instrument binical.

The slightly annoying thing is, I have found a very good Independent VAG Specialst. he is very popular so very, very busy. He will see someone very quickly in an emergency or something very important but usually has a waiting list. When the vehicle is with him, I am always surprised by just how fast he fixes things and then calls. I live approximately 20 miles away. We usually drive down in 2 vehicles and return. Expecting either a late call or a "have to keep the vehicle in" but that never happens. Its get in the house put on the kettle, answer the telephone "all done pick it up when your ready" down phone return, pick up vehicle and so on. I always felt I was receiving special treatment which I was embarrassed about but he just said he likes to be busy and while he is waiting on a part for one vehicle he works on another and so on. Yet I have never known someone so diligent fast and attentive to the task. So he is good, very good and has a good reputation in the town and beyond.

Except for one last thing that is. When I last took said vehicle in for some works service and so on, I took it in the day before because I wanted the diff-lock sorting and wanted to give him good time, he starts work very early and has always has said if I get anything in early he will give it a look at no matter what. However on this one and only occasion he did everything else but not the diff-lock. I was just a little frustrated but you know he has always be so more than perfect so I explained that the off road performance is especially important to us, he did not allow me to finish as he might normally do , he is very polite and quiet. On his occasion he was polite but I received a little lecture on the suitability of said vehicle for my intended us. I ought to get a Landrover and so on. I was a little gobsmacked. I can on assume he thought that we were just riding around for jolies and had not interpreted what I had just said or at least not the way I had intended. He did say I could book it back in if I wanted!

I went home and stewed!!! was I being unreasonable, why has the situation changed? So on and so on. In the mean time I have found a company that will fit Down Hill Assist. They even contacted VW so will do it but at a cost which is unfortunately a lot more expensive than another company who has done several on the 6.1 and see no problem doing it on the T6 but said it might need slightly different programming but don't see it as a problem a couple of hours work they thought. So I would like to try to negotiate with the first company to drop their price a bit but I am poor at that sort of thing, the wife is far more direct.

Sorry I have no electronic port reader and can not give out a coding report and only take on what the independent VAG specialist tells me and he is far too busy for a chat believe me. I can not remember what lights and what the text said exactly its a little while ago and i rarely remember that sort of thing for long. I am very grateful for the explanation of how the diff-lock engages and so on. It sounds just like a Landrover sort of thing.

Perhaps I ought to buy a gismo for reading fault codes and so on. If it worked in plain English and was obvious to an ignoramus then perhaps I could do the occasion thing perhaps even save some money and do my own Down Hill Decent Assist but if it needed knowledge of binary code figuring or hexagonal coding then I am probably a little to old to start. Checking and unchecking boxes might be OK.

Any way thank you for you expert considerations and explanations.

 

[Green Giant]

our diff lock wont Lock on, the button illuminates, and can hear relay click, but no light on the dash cluster and no locked diff, as I was trying to drive over a wet slab of rock, I failed, could this be the solenoid stuck or could it be a wiring problem as I had a fair bit of electrics moved around when someone fitted my leisure electrics under passenger seat etc (21 plate
Cheers

 

[mmi]

The Haldex was not engaging the rear at all.

I'm afraid a failure in the Haldex system alone won't turn of any warning lights. Only can be seen in fault code memory.

A few months latter rear diff lock stopped working. The light on the switch had stopped months earlier but the repeater in the instrument binical always lit up and it did operate

Strange as the button light is wired directly/only to a relay output. Anyways, dash lights have the final word.

recently the diff-lock has not been working no light on switch as before but now no light in the binical and it is most definitely not working.

Sounds plausible - no dash light - no diff-lock.

The Anti slip regulation switch has stopped lighting up but it does in the instrument binical.

Are you sure the switch ever had the light? Per wiring diagram the switch doesn't have warning lamp.