Stereo fitting gone wrong

[Tuffers88]

Please help, I tried fitting a new head unit, I shorted a wire and now the van won’t start.
At first it would start but then cut out seconds later, now I have no electrics at all..!!
tried all Fuses in side and in the engine compartment.. Carista throws this up..


DETAILED ECU INFO

ECU info obtained with Carista 502199 for iOS:

VIN: WV1ZZZ7HZHX0*****

Engine
Part #: 04L906056KL
Component: R4 2.0l TDI
Coding: 00194014432401090000 (hex)
Fault codes:
25577 Manufacturer-specific code
25797 Manufacturer-specific code
25809 Manufacturer-specific code
25810 Manufacturer-specific code
25811 Manufacturer-specific code

ABS
Part #: 7E0907379P
Component: ESC
Coding: 517E4098256484818A7D027DA48921E6790000 (hex)
Fault codes:
00166 Access/Start Authorization Switch (E415)
08279 Manufacturer-specific code
08281 Manufacturer-specific code
08295 Manufacturer-specific code
08297 Manufacturer-specific code
08329 Manufacturer-specific code

Instrument cluster
[ECU not present]

Airbags
Part #: 7E0959655G
Component: VW10Airbag021
Coding: 000000000000000000000000000000003231 (hex)
Fault codes:
12670208 Manufacturer-specific code
12674816 Function Restricted due to Missing Message(s)

Steering angle
[ECU not present]

Parking/steering assist
Part #: 7E0919475T
Component: PARKHILFE 4K
Coding: 10800A (hex)
[No fault codes]

Heater & air conditioning
[ECU not present]

Central electronics
Part #: 7E0937090B
Component: BCM PQ25 Max4
Coding: A0A4303A0A61343193284F746CEB9E7C0F84708F60CC6D60320400220840 (hex)
Fault codes:
03430 Manufacturer-specific code
01758 Bulbs for Brake Lights
00532 Supply Voltage B+
01332 Door Control Module: Passenger Side (J387)
01331 Door Control Module: Driver Side (J386)

CAN network gateway
Part #: 7E0909901
Component: GW-K-CAN TP20
Coding: 042305 (hex)
Fault codes:
03158 Control Module for Information Electronics 1 (J794)

Immobilizer
[ECU not present]

Battery regulator
Part #: 7E0907534
Component: Batt.regelung
Coding: 030B7A73 (hex)
[No fault codes]

Infotainment system
[ECU not present]

Obtained with Carista 502199 for iOS.
Download app: ‎Carista OBD2
Facebook: Carista

 

[The Bear78]

Did your search under the bonnet extend to the E-box under the battery?

 

[Paynewright]

I wouldnt publish your VIN.

 

[Ads_Essex]

I wouldnt publish your VIN.

Fixed

 

[Tuffers88]

Did your search under the bonnet extend to the E-box under the battery?

I thought there was only 2 fuse boxes..?

 

[Tuffers88]

Did your search under the bonnet extend to the E-box under the battery?

Sorry if that is a stupid question, what is the E-box?

 

[mmi]

I would start checking

as SC22 (in dash fuse box, top left) is then feeding (the missing) Instrument cluster+Immobilizer.

More in section 802 ---> VW Transporter 2016+ - Electrical Wiring Diagrams | Free Download

 

[Tuffers88]

So I have checked all the fuses in that fuse box you have just sent through..

 

[mmi]

Hmmm... a bit confused here now - there are so many variants of T6 that it's a bit challenging to know what is what and where. Thought first about mislocated fuse but doesn't look like that. By looking into the listing the "4" seemed obvious at first. But mine is missing that too, so need to have another look into the document why it's listed there but doesn't actually exist (as I was expecting).

Anyways, here's my box (MY18) just to confirm:


Besides just checking the fuses, did you verify that there is also 12 V present (when it's supposed to be when having IGNition ON).

 

[Tuffers88]

Hi thanks for replying, I haven’t tested to see if 12v’s are present as I don’t have a tester.. might have to get a auto spark out.. at first it would start and run for a couple of seconds then cut out almost as if the immobiliser was cutting in..

 

[Deaky]

Definitely sounds like an immobiliser issue. Have you added a piggy back fuse or moved any fuses in the box under the dash? Checked all the fuses under the dash?

 

[Tuffers88]

No I haven’t added or piggy backed any fuses yet.. no I don’t have any power to interior lights, windows, instrument cluster, fans etc

 

[Deaky]

Have you tried a BCM reset? Disconnect the starter battery and aux battery if you have one and touch the +ve and -ve leads together. Might be worth a try?

 

[Pauly]

If its a big enough short it could blow a fuse upstream (ebox under the battery) or damage the relay itself that engages the positive supplies

 

[Tuffers88]

Have you tried a BCM reset? Disconnect the starter battery and aux battery if you have one and touch the +ve and -ve leads together. Might be worth a try?

I’ve seen this done on the old YouTube worth a go!!

 

[Tuffers88]

If its a big enough short it could blow a fuse upstream (ebox under the battery) or damage the relay itself that engages the positive supplies

I did think this, I haven’t checked the ebox under the battery yet