Side marker not working during towing

tecnic91687

Hi. I have a Bailey Unicorn Segovia and noticed that when I hook up the car, the near-side top side marker does not work - drivers side works ok and all fuses in the main panel tested ok. I changed the bulb, which did nothing, so then checked the voltage and found there is no 12v on either of the 2 wires to the bulb. Everything else works perfectly on the van except this light. Small problem I know, but annoying!

Does anyone have a wiring diagram or know where the wires go from the bulb, so I can try to trace the problem?

Many Thanks

Steve

Moderator Edit:

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