Rear lights mod and caravan brake lights
 

When I got the V70, I did the rear light mod. It works well.
I did a caravan light check today and all lights work bar the brake lights on the 'van. Basically, the 'van brake lights are always on with its rear lights. 🙄
If I disconnect the rear light mod on the car I then have rear lights on the 'van and brake lights as normal👍.
The car has the Volvo towing module which is faultless (without the mod).
Is there any way I can make the car not permanently illuminate the caravan brake lights and keep the mod which I like?
The only solution I can think of is to put a switch in to extinguish the boot lid rear lights when towing🤔🤔

The problem with some mods is they only trick the car into doing something. In this case it looks like the mod isn’t as smart as it needs to be. I haven’t done the mod but when I read one of the threads I understood that it tricks the break lights into thinking they are side lights until the brake are applied then they change to full brightness? If this is how the mod does work I think you would be better removing the mod when towing. It looks like you are getting a back feed which could cause a serious issue if not sorted probably. You don’t need to rip if all out each time you tow should be able to put a switch in somewhere to disconnect the mod.

Thanks Kenny. Back feed is definitely the issue. I have ordered a discreet switch to delete the mod when towing.
Thanks for replying and clarifying the issue 👍👍

Switch installed and I can delete the mod/boot lid lights when towing 👍👍