Quote:
Originally Posted by Simon J
Here’s the link to Volvo's accessories and the instructions for fitting the cable harness I bought which clearly show the individual wires are coloured as per the 13 pin socket colours - https://accessories.volvocars.com/In...utomatic/R.H.D
I’ll finish the rewiring of my trailer and then connect it to the car and see what happens. Presumably the red power feed is a constant 12 volts so that the trailer lights work even with the ignition off?
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Yes constant feed to the trailer module
No , the trailer module supplies an output to the relevant trailer lights when it gets told to by the car's computer network system . The trailer module listens for commands from the car to switch the trailer lights on or off . It will probably not work if the Caravan has LED lamps ... This was allowed for from about 2012 ..