retrofiting trailer controler

[Rems]

If it's any help I mapped out the supply and fuses for my factory fitted module here:

https://www.t6forum.com/threads/which-towing-fuse-does-what.44984/#post-602967

So SH3 is not permanent 12v ?
It is dependant to trailer detection ??

It is written KL30a on schematic, so I plugged SH3 on permanent 12v :/

 

[roadtripper]

So SH3 is not permanent 12v ?
It is dependant to trailer detection ??

It is written KL30a on schematic, so I plugged SH3 on permanent 12v :/

That's the correct wiring for the supply to the trailer module.

How it behaves at the trailer socket is down to the coding in the trailer module.

See here for discussion on T6 and T6.1 options:

T6.1 OEM Towing Socket behaviour

So today I have been tinkering with my towing socket and thought this might be useful info in a post for others. My van is a MY21 T6.1 Caravelle with full towing electrics from factory. (Edited to add mine is a single battery system) This is my experimental 13 pin plug. There are 4 grain of...

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