I suppose its to be expected - you don't use it for months through the winter and something goes wrong while it sits out there in the cold....
Please, has anyone seend this particular set of symptoms?
- Both low beams out, all other front lights OK.
- No check control warning.
- Both bulbs OK.
- Both buckets deploy normally on selecting 2nd switch position.
Quick look at wiring diagram shows component A3 "LAMP CONTROL MODULE" under the steering wheel area might be a suspect as it appears to contain the operating relays. Any input gratefully received.
SG
No dipped beams
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Check for ~12V at Fuses 10 and 11 in the front power distribution box when the low-beams are switched ON. If you have no power there then the light control module is very likely to be the problem. It looks just like a normal realy....
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How do you get to the Lamp Relay Module
The wiring diagram shows A3 located underneath and to the left of the steering wheel on a LHD car. Do you know where it would be exactly on RHD models? Just that taking off trim is not my specialised subject....
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I think it is on the LHS of the dash, I'll do some investigating tonight.....
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Sorry, I cannot find any more usueful information than what we know already, probably on the LHS, behind the dash....
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OK, low-beam problem solved. Posting this for future benefit of someone else.....
That's the culprit, above, courtesy of an advert for one on ebay U.S. Part number 61.35-1-383-412, 12V Lampenkontrolmodul-2. Contains, amongst other stuff, headlight activation control, dipped beam relays, fog-lamp relays, etc, etc - quite a lot in one box, hence the price tag of £305 + Vat here in the UK. (Makes the one on ebay quite a steal at $75 - if it works).
Location, for the record, is behind the glove box, which therefore has to come out in its entirety, plus all the trim underneath. There are three control modules (all the same size, think VHS casette in size) and 412 is (you guessed it) right at the top, making it the hardest one of the three to get at. -
I'm not 100% certain but about this but I seem to remember reading that the US version of the LKM is quite different and won't work with EU versions - double check before you buy it.
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It does work with ECE cars, only it will not give proper light in a dark alley
Don´t know if you have any of them but that is your deal if not recoded to ECE:High beam: only in main assy, not in light strip
FTP lights: only the lower ones even if low beam is on.
No fog light in conjunction with high and low beam (useful for the really dark alleys )Can be recoded. Maybe you get in touch with Steffen (TXGR8White) on Bimmerforums - he does this on a regular basis and normally has converted LKMs for sale.
Plus: you´ll get one which is definitely known working..Cheers
Reinhard
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