Something weird happened yesterday - I plugged my trailer in and as I was plugging it in, the side markers flashed on (as the engine was running) and then off, and now they won't come on.

Obviously I will check the trailer plug for any loose wires or corroded terminals, but because the lights did flash on and then disappeared, it makes me wonder if there is a fuse for the trailer side lights in the car?

Does anyone have a fuse box diagram and description of fuses for the rear fuse box? 2015 Range Rover Autobiography 4.4 SDV8

[Incorrect link removed]

Though despite that being what TOPIX says, I have one that I suspect might be tow electrics on the side to the right of the main fuse box in the boot - otherwise I have no idea what it's for....





Last edited by Alistair on 6th Oct 2024 10:47am. Edited 1 time in total

Thanks Alistair. Let me check the fuses. I see several on the diagram for trailer side lights. As my trailer has side markers all the way down, plus front and rear, and I think both L and R are wired to the same pin, it may just be on the edge of the limit of the fuse. 2015 Range Rover Autobiography 4.4 SDV8

Sorry - I'm not sure the Topix link is correct - despite what Google says - those pictures don't look like an L405

As penance, I went out and checked my owners manual

Passenger Fuse box - fuse 27 - 10A - trailer side lamps

Many thanks for looking in your book Alistair. Fuse 27 had indeed blown. Swapped it out and all working again. 2015 Range Rover Autobiography 4.4 SDV8

Happy to help - glad it was an easy fix