Reverse Lights on all the time
Hello! Bit of a doozy I'm struggling to work out.
I bought this ba falcon in January, and was installing a reverse camera recently when I realised that the reverse lights are always on, albeit dimly. This obviously means the reverse cam is always on.
When the car is put into reverse, the lights become brighter, as they should, but until the car is switched off, they remain on dimly.
I pulled the reverse switch from below the car, and the lights remain on. Given that this happens to both lights, and that the rear main earth looks relatively fine, I'm suspecting the problem is a wiring one since the car had a t56 swapped in from a t5.
What made it weirder, was that when pulling fuses, an unused fused (according to the fusebox) being pulled would cause the lights to finally turn off. When this fuse was put back, it sounded like a fuel pump and as turned on, as the sound of it priming could be heard.
I'm aware the car had a sniper 320 fuel pump put in, but I have no idea how that was wired, and where I should start looking. I checked the fuel pump wiring under the rear seats, but it seems pretty normal.
From what I understand, the fuel pump fuse should go to a relay somewhere in the engine bay, and then splice into the factory wiring before moving down towards the fuel pump. Is this true? If so, where would it be?
My ultimate conclusion is that there was a poor splice into the wrong wire, or that there is an unintentional connection to the reverse light wire, causing the 12v to constantly leak into those.
Please provide your opinions! I'm quite stumped! Thanks