Alarm contacts

[johnny tempest]

Hi all,
On my old van (not VW) I managed to connect a loop of wire off the rear door contact to pass through a trailer when hitched up. Please see my rough diagram. so if someone decided they deserved my trailer more than me, they would break the loop and set the van alarm off.

As my 2016 T6 doesn’t appear to have door pins/switches, does anyone know if this is possible ??

thanks

JT

 

[Deaky]

It's all done by the trailer module if you have OEM trailer electrics.

 

[johnny tempest]

Unfortunately not, I have an aftermarket bar with the full wiring kit. But I also pass the loop through the chassis of my car should someone take that off the trailer. Sorry forgot to mention that

 

[Deaky]

Unfortunately not, I have an aftermarket bar with the full wiring kit. But I also pass the loop through the chassis of my car should someone take that off the trailer. Sorry forgot to mention that

Vehicle specific wiring kit, coded to the van? Or just a bypass relay.

 

[johnny tempest]

Vehicle specific

 

[Deaky]

In that case the alarm should go off when the trailer is disconnected. Has the module been coded? Have you got reverse sensors? Do they turn off when a trailer is connected?

 

[johnny tempest]

Yep, sensors turn off and the display changes on the radio to show a trailer

 

[Pauly]

Then it should activate the alarm on disconnection

 

[Deaky]

Strange, if my van is locked and I take out the socket the alarm goes off. I think it's all done by the contact switch in the 13pin socket. If you have a 7pin adaptor in the socket then it won't work

 

[johnny tempest]

Ah, only 7 pins

 

[Pauly]

I think it does it by measuring a circuit between pins X and Y so hopefully still works on 7 pin
Be easy for you to test out and confirm

 

[johnny tempest]

Will try something tonight and let you know

thanks guys

 

[mmi]

OEM trailer detection/alarm "priming" requires that in the trailer (minimum) two of the following circuits are present (having regular bulbs):
- Left parking light
- Right parking light
- Left indicator
- Right indicator
However, if experimenting it's worth noting the thresholds (resistance in the circuits) are different for just trailer detection and alarm "priming"... the regular bulbs are a must.

EDIT: alarm is active not before approx. 15 sec after locking the van.

 

[mmi]

Hi all,
On my old van (not VW) I managed to connect a loop of wire off the rear door contact to pass through a trailer when hitched up. Please see my rough diagram. so if someone decided they deserved my trailer more than me, they would break the loop and set the van alarm off.

As my 2016 T6 doesn’t appear to have door pins/switches, does anyone know if this is possible ??

thanks

JT

Arming spare wheel with similar idea was sketched here ---> Someones Stolen My Spare Wheel.

 

[johnny tempest]

I finally had chance to test the theory today, but sadly unplugging the trailer electrics didn’t not set off the alarm

 

[mmi]

I finally had chance to test the theory today, but sadly unplugging the trailer electrics didn’t not set off the alarm

Just got curious about the issue - again. Any chance to get a full scan report of your van (Carista, OBDeleven, VCDS)?

 

[johnny tempest]

Just got curious about the issue - again. Any chance to get a full scan report of your van (Carista, OBDeleven, VCDS)?

I have VCDS, but as a complete novice and without looking, I would need some guidance on how to obtain a scan

 

[mmi]

I have VCDS, but as a complete novice and without looking, I would need some guidance on how to obtain a scan

Excellent!

It would go along these lines:

Plug in VCDS dongle.
Start VCDS on computer.
IGNition ON

On VCDS click Auto-Scan



Click Start (Auto-detect) ... it takes a few minutes to scan all the modules

When finished, under Results click Save - it will create a Log-WV.xxxx.TXT file in directory C:\Ross-Tech\VCDS\Logs
Also Copy can be used to copy and paste e.g. into Notepad

Just attach the file in your post.

 

[johnny tempest]

Excellent!

It would go along these lines:

Plug in VCDS dongle.
Start VCDS on computer.
IGNition ON

On VCDS click Auto-Scan
View attachment 166372


Click Start (Auto-detect) ... it takes a few minutes to scan all the modules
View attachment 166374
When finished, under Results click Save - it will create a Log-WV.xxxx.TXT file in directory C:\Ross-Tech\VCDS\Logs
Also Copy can be used to copy and paste e.g. into Notepad

Just attach the file in your post.

I'll give it go, thanks

 

[johnny tempest]

I'll leave you to pick the bones out of that