So I posted a couple of weeks ago about the side lights occasionally coming on by themselves ~10 mins after the car has been turned off and locked. This had drained my battery a couple of times but mostly an inconvenience. I've just fitted some spot lights to the car and it seems to have made the problem 10x worse!
I wired in the spotlights completely isolated from any of the cars lights... however... I'd noticed a previous owner had fitted spot lights to the car at some point (I've only owned for a couple of months), and there was still wiring from the front of the bonnet to a relay below the steering wheel. My first thought was perhaps this is all hooked up and I could make use of it, so I tested this first, but at no point was there power at the cables on the bonnet end (tried headlights, fog lights, didn't try full beams come to think of it). So I decided to use the relay etc. which had come with the new spot lights BUT I thought it would make sense to hijack this redundant wiring to use as a switch. So I cut the two pairs of cables from the 'old relay' which went to the old spot lights. Anyway, spot lights fitted, work perfectly, but since packing the tools away and locking the car the side lights have mysteriously come on 3 or 4 times, same problem as before but more frequent (also occasionally going off then coming back on again). I tried cutting the 5th cable that was in the bunch, a mystery cable, as I thought this could have been the cause all along for the side light fault but no change.
So the inconvenience has now become an actual problem! Firstly, is this 'old spot light' wiring factory fitted by Mini, or is it aftermarket? I've attached a picture of the relay which is located behind the plastic panel directly to the right of the accelerator, accessible from the drop down tray under the steering wheel (RHD), as well as the cables which were cut. Secondly, does anyone know where this may have been connected to turn the lights on? There's no evidence of any other switches ever being fitted, so presumably using the existing side light or fog light switch / control?
Thinking out loud: Prior to this, I had thought the issue could have been caused by aftermarket LED sidelights which the previous owner had fitted. But now I'm starting to think that there must be a cable from the sidelight switch which was used to activate the old spot lights, which is now 'floating' and un-terminated, causing this occasional random switch on (although it only seems to happen within 10 mins of switching the car off, after the side lights / head lights have actually been on - never otherwise, and if they haven't come on after ~10 mins they probs never will - again, odd).
Has anyone got any ideas? Perhaps a method to debug? Any ideas would really be much appreciated!
all the function within a car this is things like, lights. horn. indicators. door locks brake lights high beam low beam etc etc so all these functions are controlled run and checked by the body control module, Peugeot call it a bsi other makers call it all kinds of names.. so you cant just add to it without knowing how.. a bit like fitting a towbar electrics same thing you must either use a factory wiring and control module,,, or get someone or learn how to use a special relay box that has sensor low voltage and amps wires to sense the control, that then the relay manages the extra load from lights,, because body control module as a few tricks, one is when you switch off car and dont lock doors or there is a fault with locking body control module stays on and keeps using battery and drains it.. if something is added to it that shares a live this live will wake it up again and uses battery again for 3 minutes then it trys to sleep again,, for sure there will be a special wiring and control box that links in to mini module and will prob need to be switch on at the module with software,, ie b cable inpa,, you can how ever trick the system buy running and main high amp feed s to bulbs via relays that get their control voltage from the main beam headlights,, ie find which live at the head light for high beam and splice in to it just for low amp signal wire,, also you must use a independent fuse for the high amp circuit ie the bulb circuit,,
DONT BE ADDING VOLTAGE OR RUNNING WIRES YOU HAVE NO IDEA TO WHAT THEY ARE,, SOME CIRCUITS RUNS A VERY LOW VOLTAGE OR PULSE VOLTAGES THE BODY CONTROL UNIT VERY EXPENSIVE AND WILL NEED ENCODING TO CAR