VW T6 multiple electrical issues

JJ2513

New Member
VIP Member
Hi all,
So our van decided to have a grump and has thrown up a load of system failures.

Having driven the van regularly it’s never thrown any of these failures up before, during a trip home from work, I thought I smelt a slight electrical burning smell but could have been from outside the van. However about 2 mins later. The van lit up like a Christmas tree.

ESC failure
Front collision sensor failure
Tyre pressure monitor failure

The van still drives ok and I believe that’s all that effected. (Will plug Carista in today for fault codes)

Could anyone point me in the right area to start looking for the problem? I was wondering if these systems share a common fuse board or box etc?

Any help is gratefully received!
 
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A broken wheel speed sensor will cause faults in all those systems. Easy fix once you know which one. Do you have access to VCDS or Carista?
 
Hi Deaky,
Thanks for the reply. Just popped Carista on and these are the faults coming up…

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Please start with the fault 31343 - 4Motion controller is off line.
Please post "Detailed ECU info" -report (under Carista Service menu)

Check these please:
 
Please start with the fault 31343 - 4Motion controller is off line.
Please post "Detailed ECU info" -report (under Carista Service menu)

Hello,
Thanks for the reply, it seems there is something going on with the wiring for the controller, I found SC33 fuse had blown and when replaced it blows after about 5 seconds of the van turning on…

Could someone point me in the direction of where the controller is located on the van?

Was going to start continuity test on the cables..

All the other faults do clear when SC33 is replaced, albeit for 5 seconds
 
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ECU info obtained with Carista 800099 for iOS:

Code:
VIN: WV1ZZZ7HZKH120855

CAN network gateway
Part #: 7E0909901
Component: GW-K-CAN TP20
Software version: 0762
ASAM/ODX identifier: [none]
Coding: 042305 (hex)
Fault codes:
01324 Manufacturer-specific code
03158 Manufacturer-specific code

Engine
Part #: 04L906056KJ
Component: R4 2.0l TDI
Software version: 3770
ASAM/ODX identifier: EV_ECM20TDI03004L906056KJ
Coding: 00194014432601090000 (hex)
Fault codes:
25126 Manufacturer-specific code
31343 Manufacturer-specific code

ABS
Part #: 7E0907379P
Component: ESC
Software version: 0133
ASAM/ODX identifier: EV_Brake1ESCCONTIVN75XGP2
Coding: 347EC0986564847E2C7D037BA687219379F100 (hex)
Fault codes:
08269 Manufacturer-specific code

Steering angle
Part #: 6R0959654
Component: LENKW.SENSOR
Software version: 0070
ASAM/ODX identifier: EV_LWSKLOVW25X
Coding: 01 (hex)
[No fault codes]

Airbags
Part #: 7E0959655J
Component: VW10Airbag021
Software version: 0018
ASAM/ODX identifier: EV_AirbaVW10BPAVW12X
Coding: 000000000000000000000000000000003231 (hex)
[No fault codes]

Instrument cluster
Part #: 7E0920971A
Component: KOMBI
Software version: 2030
ASAM/ODX identifier: EV_Kombi_UDS_VDD_RM09
Coding: 740B010300 (hex)
Fault codes:
12653568 Manufacturer-specific code
13654544 Manufacturer-specific code

Infotainment system
[ECU not present]

Immobilizer
Part #: 5K0953234
Component: IMMO
Software version: 2030
ASAM/ODX identifier: EV_Immo_UDS_VDD_RM09
Coding: 000002 (hex)
[No fault codes]

Heater & air conditioning
Part #: 7E0907047AC
Component: Climatic-T5
Software version: 0708
ASAM/ODX identifier: EV_ClimaticT5
Coding: 0000000003 (hex)
[No fault codes]

Parking/steering assist
Part #: 7E0919475T
Component: PARKHILFE 4K
Software version: 0212
ASAM/ODX identifier: EV_VW75XParkAssis4K
Coding: 108008 (hex)
[No fault codes]

All-wheel-drive system
[ECU not present]

Central electronics
Part #: 7E0937090D
Component: BCM PQ25 Max4
Software version: 0762
ASAM/ODX identifier: [none]
Coding: B8FC793A0A61341393284F746CEB9EF40F84710F60CC6960330400230840 (hex)
[No fault codes]

Battery regulator
Part #: 7E0907534
Component: Batt.regelung
Software version: 0762
ASAM/ODX identifier: [none]
Coding: 030B7A73 (hex)
[No fault codes]

Adaptive cruise control
Part #: 7N0907572C
Component: ACC Bosch PQx
Software version: 0211
ASAM/ODX identifier: EV_ACCBEGVW361
Coding: 00004000FE0779 (hex)
Fault codes:
01037 Manufacturer-specific code
01058 Manufacturer-specific code
01059 Manufacturer-specific code

Obtained with Carista 800099 for iOS.
Download app: ‎Carista OBD2
Facebook: Carista
 
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All-wheel-drive system
[ECU not present]
Thanks.
Yes, the controller is off line - - needs to be sorted first.
Could someone point me in the direction of where the controller is located on the van?
In the linked post below.
 
Hi all,
Just to update on the issue, from another thread with the same issues the vacuum solenoid in front of the ad blue tank had melted! Thankfully the fuse did its job and the plug part was all fine.

New valve fitted today and problem sorted, which was loads of fun on a gravel driveway!
 
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