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Discuss Very strange car fault - Citroen C2 - fuse box? BSI? BSM? Please help in the Auto Electrician Forum area at ElectriciansForums.net
If as you say the mechanic replaced the fuse box he must have disconnected the battery, to me this all seems to point to a battery fault, connection, negative or positive or internal to the battery itself.
Checking the wiring diagram would possibly help with the puzzle... I guess?
Good luck . Let’s know the answer!The whole fuse box was replaced recently, which only "worked" for a couple of days. I'll let you guys know once (if) I get my car started and bring it to the mechanic. I'll have a longer chat with the guy once I'm there and see if he has any ideas.
As @Ziggie . A bad earth could cause those problems too, but @DPG you would think this would have been checked by the qualified people that have already examined it .
However ensure the negative battery connection is sound and connect a jump lead between that and a good connection to the engine block to see if that eradicates some of the symptoms.
When the car is faulty, there are no lights whatsoever, it's not a battery or alternator, had that checked already.Could be a number of things which I will expand on later but first can I ask that when the car is faulty, do the headlights work at full brightness? If so this rules out a bad battery and parasitic draw (as the battery would go flat on a regular basis)
Is the starter motor and its circuit in working order(has this been confirmed by the auto electrician)?
Please report back for part 2.
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Reply to Very strange car fault - Citroen C2 - fuse box? BSI? BSM? Please help in the Auto Electrician Forum area at ElectriciansForums.net