House wiring is different to vehicle wiring. House brown is positive, vehicle brown is negative, house black is negative, vehicle black is positive - especially German wiring.
Someone has used the wrong colour wiring in the past.
Needs rewiring correctly from scratch.
Old leisure battery wiring
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Re: Old leisure battery wiring
1.6D 2019 VW T-Cross
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
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Re: Old leisure battery wiring
Brown wires are ground of Vw's. Must have been wired to BS AU7 standard where brown is a direct live feed. Cause a *** confusion- Mongrels language. Run new Red wire alongside. The relay was available from Aes, Automotive Electrical Supplies and the website has the connection details.