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Thread: Key fob batteries last one day on all keys, code B1050 & B1052 showing

  1. #41
    Join Date
    Oct 2009
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    Bury Lancs
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    Quote Originally Posted by Eryc View Post
    Yes we are looking at that, thank you!
    On a 452 Roadster, under the carpet near the handbrake, is a box of electrickery that looks like a relay, it's the receiver for the key/alarm. They don't like wet carpets. Could it be your car's problem? :-?

  2. #42
    Join Date
    Jul 2015
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    SW
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    Quote Originally Posted by EmilysDad View Post
    On a 452 Roadster, under the carpet near the handbrake, is a box of electrickery that looks like a relay, it's the receiver for the key/alarm. They don't like wet carpets. Could it be your car's problem? :-?
    Thank you that's a great help and I agree, the wet carpet is likely to be the cause ANd to know where the electrickery is is very useful. Appreciate you taking the time to offer advice.

  3. #43
    Join Date
    Jul 2015
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    SW
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    Quote Originally Posted by EmilysDad View Post
    On a 452 Roadster, under the carpet near the handbrake, is a box of electrickery that looks like a relay, it's the receiver for the key/alarm. They don't like wet carpets. Could it be your car's problem? :-?
    Thank you that's a great help and I agree, the wet carpet is likely to be the cause ANd to know where the electrickery is is very useful. Appreciate you taking the time to offer advice.

  4. #44
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    Jul 2015
    Location
    SW
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    46
    FInally! I have got a battery tester and yes the batteries are FULLY discharged. Showing a tiny amount of charge but well into red zone. Have checked a few, I kept a lot of them and they are all VERY dead.

    Batteries currently lasting 7-10 days, but this is after a new session of drying out the carpet in the passenger footwell.

    Quote Originally Posted by reinaldo_is_spam View Post
    could you just clarify:

    Are the battery's removed actually discharged ?
    Have you checked this ?
    Does the key work immediately without anything else once you've replaced the battery again?

    Or are you having to take to car back each time to get the car to recognise the key again ?

  5. #45
    Join Date
    Jul 2015
    Location
    SW
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    46
    The wet carpet seems to be at least part of the problem, certainly the recent spasm of central locking, which has now stopped. Garage checked the sensor you described (only found it thanks to your insturctions so thank you for that) and it was clean, dry and ok. No codes and of course the norty car was behaving!
    Took it home, plugged in a dehumidifier and am removing 250ml liquid every 2 days. Batteries lasting a bit longer and no more central locking spasms. Drove the little beast to London and back (300miles) and it ran better than it has EVER run before and was a joy to drive, park etc. So may be making a little progress! Hooray. Thanks again.

    Quote Originally Posted by EmilysDad View Post
    On a 452 Roadster, under the carpet near the handbrake, is a box of electrickery that looks like a relay, it's the receiver for the key/alarm. They don't like wet carpets. Could it be your car's problem? :-?

  6. #46
    Join Date
    Oct 2009
    Location
    Bury Lancs
    Posts
    146
    Quote Originally Posted by Eryc View Post
    ...l. Drove the little beast to London and back (300miles) and it ran better than it has EVER run before and was a joy to drive, park etc. So may be making a little progress! Hooray. Thanks again.
    Seems like step in the right direction

  7. #47
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    Jul 2015
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    SW
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    I thought I'd post an update on this in case anyone ever has the same issue.
    It seems the problem was water under the carpet, so investing in a de humidifier to dry the lil beastie out was a good move. Removed pints of water over a couple of weeks and now even the key batteries are lasting longer. Weird but good. Last key battery has been working for three weeks now without needing a new one, fingers crossed. No more central locking issues and car running like a dream. Just done a 600 mile return road trip in him, no issues. So seems like the problem was and is damp. Thanks everyone for their help/advice and suggestions.

  8. #48
    Join Date
    Feb 2011
    Location
    Lewes
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    714
    If you are removing that amount of water, I would suspect a leak...... New door rubbers maybe, new seals on rear quarter light windows, new seal around the rear hatch, "leak sealer" or equivalent to seal the front windscreen.
    There are "fixed" for all these leak points if you don't want to buy new bits!

    John

  9. #49
    Join Date
    Nov 2013
    Location
    Central Scotland
    Posts
    443
    Three weeks life for a fob battery is still rubbish, as a key fob battery should last for three years or far more.

    if you are saying its wet carpet around the reciever causing this problem, then just remover the carpet from the car and dry the car floor, and find your rain water leak. then once sorted, replace your carpet.

    If you cannot remove the carpet easy, just cut chumks out with a stanley knife, nothing worse than damp carpet anyway.

    You may also have water in the reicever unit box itself, might be worth checking and drying out.
    Last edited by colin2x2; 27-01-2018 at 07:38 PM.

  10. #50
    Join Date
    Nov 2007
    Location
    BANCHORY
    Posts
    3,304
    Bad batch of batteries or something has contaminated key electronics. Perhaps try electro cleaner and good make of batteries.
    Drives a Smart Cdi - 65 to 85 MPG

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