(30-01-2025, 08:35 PM)rhughes44 Wrote: Central locking on my 09 XTR stopped working - lights flash but only tailgate locks. Online fusebox diagrams show F2 is c/l fuse, but my handbook says F2 is spare, F6 is 'locks' and F15 is 'locks' - which is correct? Also is there anyway of securing all doors without the keyfob? The front doors lock with the key, but not the sliding rear doors. I have swapped F2, replaced the key fob and done a BSI reset? Am I looking at a wiring fault, or BSI fault?
Have you got any other system faults or anything else not working on any other system on the vehicle?
I'm asking as I suddenly had a load of random [and I thought un-connected] things start to occur on my 2008 Berlingo XTR. When I say random, I really do mean random. First, rear wiper stopped operating then shortly after had random 'STOP' warnings appear finally vehicle wipers randomly would start and headlamps switch on when the vehicle was parked up and everything off, with the keys not even in the ignition!
Without going into a very long story the culprit for many random [electrical] faults on the Berlingo and other PSA group vehicles is the engine bay fuse box [the one that sits adjacent to the battery] Turns out this is not only a fuse box but also has a load of electronics on the underside of the circuit board that communicates between various systems and the BSI. The thing is they are susceptible to water damage [if you look on the cover of the engine fuse box it shows a diagram indicating not to get the box wet] The problem being on the Berlingo [and many other PSA group vehicles] is that when the scuttle drains at the edges of the engine bay [underneath the windscreen wiper scuttle panel] get blocked with debris [leaves etc] the water has nowhere to go except into the engine bay and can quite often soak the fuse/electronics box causing all sorts of problems. In my case, it wasn't actually rain water but a rodent had got into the box and was using it as it's home/toilet and the liquid caused all the electronics to short out.
So that is a possible place to check. There is often visible evidence of liquid in the fuse box or corrosion on the blades of the fuses in the engine bay fuse box. Obviously if you are going to pull out the fuses to check for corrosion on the blades, make sure the vehicle has first entered 'sleep mode' before disconnecting the battery and then pull the fuses one at a time to check for any liquid damage/corrosion. Any you do find corroded clean up an apply electrical contact cleaner [do not apply any other kind of spray apart from contact cleaner] You might be lucky and that cures the problem.
If there is evidence of liquid damage you may have to replace the whole engine bay fusebox/circuit board as I had to as the board had been shorted out because of the reasons I gave earlier. This isn't as bad as it sounds, as it is fairly easy to replace [only took me about 20 minutes] and no coding re-programming of anything is required.
The one thing to make sure of if you do go down this route is to get the EXACT same part number of fusebox, as there are many different types that look the same but are not. Luckily the board is used in a number of different PSA group vehicles and I got a used one from a dealer on Ebay which I think cost me about £35 delivered but the different part numbers do vary quite widely in cost but as your vehicle is about the same age as my Berlingo was, then it would [hopefully] be similar in price
An image of the box and where to find the part number [circled in red] are below
Final thing, if you do find water damage, make sure you remove the scuttle panel and check the engine bay scuttle drains are not blocked, or it could all happen again!
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