Foot trunk open

[Seba800]

Hello

 

Today my trunk didnt open, when i try it to open with foot.

 

I scan with obdeleven and i got this fault code.

 

One day before i normaly open trunk with foot.

 

What can be wrong?

 

 

[ApertureS]

If you look under the rear bumper on the offside, above the exhaust you should see a small box with 2 plugs, confirm both plugs are plugged in securely. 

If they are, you will need to check for the power, ground and LIN signal at this plug. 

[Seba800]

Above exhoust i see one box with one plug and i thing this is radar for blind spot detect.

 

Can you please paste picture how looks this box?  

[numskull]

Probably easier for you to take and paste a pic of what you can see on your car, so AS can comment on that?

Edited 25 March, 2023 by numskull

[Seba800]

[Seba800]

I found it.  Both conectors are plug in.

 

And for what is this fault code?

[Seba800]

Nobody know?

[ApertureS]

On 26/03/2023 at 14:30, Seba800 said:

This isn’t it. It fits on the top of the rear splitter with 2 visible connectors 

 

On 26/03/2023 at 14:56, Seba800 said:

I found it.  Both conectors are plug in.

 

And for what is this fault code?

Your diagnostic tool isn’t giving much detail and this is where the genuine tool or genuine vcds gives more details to assist.

 

 

[numskull]

What is that “thing/sensor” he’s shot there, AS?

[ApertureS]

1 hour ago, numskull said:

What is that “thing/sensor” he’s shot there, AS?

That will be the blindspot monitor/radar 

[numskull]

Cheers….👍🏻

[Seba800]

Know somebody where are the fuses for this module? 
 

Front by engine?

[Seba800]

Here is more info if helps more

 

vehicle history log
Date: 2023-03-29 17:17:19

   VIN: 
   Car:  
   Year: 2017
   Body type: UNKNOWN
   Engine: DFCA  kW ( hp) l
   Mileage: 179126 km

---------------------------------------------------------------
B7 Start System Interface
       System description: VWKESSYMQB
       Software number: 3Q0959435E
       Software version: 0811
       Hardware number: 3Q0959435E
       Hardware version: 036
       
       Faults:
               U10DC00 - Local data bus 4
           Electrical error
               static
                   Priority - 6 
               Malfunction frequency counter - 1 
               Unlearning counter - 10 
               km-Mileage - 179126 km
               Terminal 15 Kessy specified value - On 
               Terminal 15 Kessy actual value - On 
               Terminal 15 central electric actual value - On 
               Terminal 15red Kessy specified value - On 
               Terminal 15red Kessy actual value - On 
               Terminal S Kessy specified value - On 
               Terminal S Kessy actual value - On 
               Terminal S central electric actual value - On 
               Terminal 50 Kessy specified value - Off 
               Terminal 50 Kessy actual value - Off 
               ZAT pressed - Off 
               Park selector lever position - Engaged and locked 
               Request active - Condition not met 
               Enabling steering column lock - Condition not met 
               Enabling immobilizer - Condition not met 
               No active error mode - Condition met 
               Key signature validity - Condition met 
               --- - 11.963 V
               Driver information key position copy workshop - not active 
               Driver information, roll warning - not active 
               Driver information, emergency shutdown - not active 
               Internal key position - no_message 
               Driver information comfort switching - not active 
               Vehicle speed - 0.0 km/h
               Engine speed - 0.0 1/min
               --- - Vehicle unlocked 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - Not coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - Not coded 
               Driver door - Closed 
               Front passenger door - Closed 
               Left rear door - Closed 
               Right rear door - Closed 
               Active LF scans - Init 
               ID sensor 1 authentication, status - No response 
               ID sensor 2 authentication, status - No response 
               ID sensor 3 authentication, status - No response 
               ID sensor 4 authentication, status - No response 
               SPN Byte 0 - 0 
               SPN Byte 1 - 0 
               SPN Byte 2 - 0 
               date - 2023-03-29 17:16:12 
               
               B130331 - Control module for rear lid opening
           No signal
               static
                   Priority - 2 
               Malfunction frequency counter - 1 
               Unlearning counter - 10 
               km-Mileage - 179126 km
               Terminal 15 Kessy specified value - On 
               Terminal 15 Kessy actual value - On 
               Terminal 15 central electric actual value - On 
               Terminal 15red Kessy specified value - On 
               Terminal 15red Kessy actual value - On 
               Terminal S Kessy specified value - On 
               Terminal S Kessy actual value - On 
               Terminal S central electric actual value - On 
               Terminal 50 Kessy specified value - Off 
               Terminal 50 Kessy actual value - Off 
               ZAT pressed - Off 
               Park selector lever position - Engaged and locked 
               Request active - Condition not met 
               Enabling steering column lock - Condition not met 
               Enabling immobilizer - Condition not met 
               No active error mode - Condition met 
               Key signature validity - Condition met 
               --- - 11.963 V
               Driver information key position copy workshop - not active 
               Driver information, roll warning - not active 
               Driver information, emergency shutdown - not active 
               Internal key position - no_message 
               Driver information comfort switching - not active 
               Vehicle speed - 0.0 km/h
               Engine speed - 0.0 1/min
               --- - Vehicle unlocked 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - Not coded 
               Approach to the inside - not active 
               Actuation to the inside - not active 
               Approach to the outside - not active 
               Actuation to the outside - not active 
               Pulling actuation, outside door handle - not active 
               Coding information - Not coded 
               Driver door - Closed 
               Front passenger door - Closed 
               Left rear door - Closed 
               Right rear door - Closed 
               Active LF scans - Init 
               ID sensor 1 authentication, status - No response 
               ID sensor 2 authentication, status - No response 
               ID sensor 3 authentication, status - No response 
               ID sensor 4 authentication, status - No response 
               SPN Byte 0 - 0 
               SPN Byte 1 - 0 
               SPN Byte 2 - 0 
               date - 2023-03-29 17:16:12 
               

[ApertureS]

The fuse for this is behind the glovebox.

 

that fault code is hard to tell without a better diag tool but you need to check power, ground and for a lin signal at the rear module, if you have these then you need to be looking at replacing the module 

[nicknorman]

On 29/03/2023 at 17:39, ApertureS said:

The fuse for this is behind the glovebox.

 

that fault code is hard to tell without a better diag tool but you need to check power, ground and for a lin signal at the rear module, if you have these then you need to be looking at replacing the module 

Pretty hard to check for a LIN signal without specialist test gear or an oscilloscope I would have thought - or do you have a clever way of doing it? Presumably the "local data bus 4" is the LIN bus, but could be wiring or an electronic fault at either end that could hang the bus I would presume.

Edited 31 March, 2023 by nicknorman

[Seba800]

Thanx

 

Update:

 

I have disconect conectors and there was one pin litle corodet.  I clean it and plug them back. 
 

There is no more fault code for control module for rear lid opening.  

But There is stil fault code  for

Local data bus 4

Electrical error

English

G

Fault code:

U10DCOO

Status:

static

 

 

 

[Seba800]

Hello

 

Update:

 

Today i try open trunk with foot and it works open and close flyless.. 

But it works only when car is not locked. 
when its locked doesent work. 
 

Can be that obd eleven has mess up with coding other things (auto coding feautures in app) ?

[EnterName]

2 hours ago, Seba800 said:

Hello

 

Update:

 

Today i try open trunk with foot and it works open and close flyless.. 

But it works only when car is not locked. 
when its locked doesent work. 
 

Can be that obd eleven has mess up with coding other things (auto coding feautures in app) ?

I think that's a feature, not a fault.

Do you want anyone to be able to open your trunk when the car is locked?

[Seba800]

Do you know for keyles system?

Edited 20 April, 2023 by Seba800

[ApertureS]

46 minutes ago, Seba800 said:

Do you know for keyles system?

Yes with keyless system it can be done when the vehicle is locked or unlocked as long as the key is in the vicinity of the tailgate of course.

[Seba800]

Correct.

[Seba800]

So nobody cant look scan and tell if something is wrong coded?

[EnterName]

17 hours ago, Seba800 said:

Do you know for keyles system?

Ah! Then I'm confused.

 

20 hours ago, Seba800 said:

Today i try open trunk with foot and it works open and close flyless.. 

But it works only when car is not locked. 
when its locked doesent work. 

How is the car locked when you're in proximity with the key?

I thought that was the point of keyless entry, that the car unlocks as you approach it.

Bear with me as I don't have a vehicle with keyless entry, so I might not be understanding a feature of the system.

[numskull]

20 hours ago, EnterName said:

I thought that was the point of keyless entry, that the car unlocks as you approach it.

Unlike other manufacturers, the VW KESSY system does not operate in that way. To open the driver or front passenger door (on early cars; on later cars one can open all doors) you need to touch the door handle and you need to do the same when you exit the car to lock it. Of course you can use the remote to open / lock the car from a distance.
Obviously, you need to be standing at the rear of the car to open the tailgate with the virtual pedal. 

[EnterName]

2 hours ago, numskull said:

Unlike other manufacturers, the VW KESSY system does not operate in that way. To open the driver or front passenger door (on early cars; on later cars one can open all doors) you need to touch the door handle and you need to do the same when you exit the car to lock it. Of course you can use the remote to open / lock the car from a distance.
Obviously, you need to be standing at the rear of the car to open the tailgate with the virtual pedal. 

Thank you! I had no idea how the KESSY system worked.

I just assumed your car was unlocked all the time until the key fob was out of range.