Thread: D2 central locking and obd issue

It means you must see now if there is output from the engine bay fusebox on that circuit and if it is to see if that feed gets to the interior fusebox... then you'll know where the trouble is, the best scenario is that the problem is a loosensed plug, the worst that bad contact is within one of the fuseboxes

i checked the diagram again, the feed from FL3 output from engine bay fusebox is in C0572-2 and goes directly to interior fusebox C0582-1 brown/red wire, thenit splits within the fusebox to F1, 2, 20, 21, the best is to work backwards from interior fusebox cos if you get feed there in the plug it's certain that the problem is within this fusebox...if no feed go to the other fusebox

Update 2 I have now found out that the central locking clock interior and radio issues have been going on for some time pre battery disconnecting the obd issue is new .
While checking power today we found no feed from the engine bay but I noticed that someone had placed a relay in the sls port which was quite warm, I removed it and we now have everything working again but I think it is a result of disturbing the connections in the fuse box itself he will drive it for a while and see what happens and if it returns I will change the fuse box under the bonnet because that is where I think the problem is

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at least you've found the source of the problem , you can open that fusebox and try to follow the circuit from FL3 untill the exit...that fusebox is built in tabular layers and you can find the culprit if you are determined enough, but it can be a pain in the ar&e so for a price of a good used unit maybe it doesnt worth the travail

I have several used ones at home so it should be an easy fix

that's nice then...about that warm SLS relay, if it was converted to coils it's possible that it was not set to coils in the SLABS ECU then the relay is energised all the time, though there should be a warning on the dash in this case, unless it was blanked by the previous owner... it would be good to check that setting cos even if the "hardware" is removed if it's not set on coils the overall drain of the system is a bit higher cos the SLABS ECU stays energised 1.5 hours after the ignition was off, which is around 100mA and it activates again for 30 minutes every time a door is opened....which is useless for a coiler