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Remote Keyfobs - Can they Blocked ?

Discussion in 'Motors' started by nam, 13 May 2006.

  1. nam

    Wise Guy

    Joined: 18 Oct 2002

    Posts: 2,418

    Location: London

    Hi,

    I have a strange problem on my 53 plate Yaris T-sport. Basically i could not unlock the doors using the remote keyfob this morning, so i manually had to unlock using the key which then caused the alarm to go off. Luckily the Alarm soon stopped and i was able to start the car and move it a few yards down the street. Which is when i parked up and tried again and remote keyfobs worked.

    The problem seems to be in front of my house, is it possible that someone is blocking the signal being used by my keyfob as i cannot set the alarm/immobiliser without the remote keyfob ?

    Please can anyone help ?
     
  2. Sharq

    Hitman

    Joined: 9 Mar 2003

    Posts: 584

    Batteries? i had a simular problem in the Audi. i took the batteries out for some reason which caused the FOB to stop working. All i did was use the key to open the car door and start the car. 1 of these steps re-syncd the FOB.
     
  3. djbenjo

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,889

    Location: Manchester

    Sounds like batteries on the way out to me.
     
  4. BenST

    PermaBanned

    Joined: 18 Oct 2002

    Posts: 6,121

    Location: Southampton

    Some mobile phone antennas can interfere with the signal that your keyfob transmits which would explain why your fob works fine when you move the car.
     
  5. nam

    Wise Guy

    Joined: 18 Oct 2002

    Posts: 2,418

    Location: London

    definately not batteries as i changed both today and its the same. There Seems to something interfering with the key fob around my house area, further down the street its fine.

    How can i find out what is causing the interference ?
     
  6. Rednut05

    Banned

    Joined: 1 Aug 2005

    Posts: 908

    What frequency does it work on? Find that out and you may be getting somewhere maybe?

    Searched google and some people have had the same problems due to, as mentioned a radio mast or something simular being recently put up. Anything like that in your area?

    Or aim the keyfob at your temple, like you were going to shoot yourself and then try it. Boosts the signal....
     
    Last edited: 13 May 2006
  7. atomiser

    Wise Guy

    Joined: 28 May 2003

    Posts: 1,844

    as others have said, check what frequency it works on. do you have a wireless network at home? if the fob for your car works at either 2.4ghz or 5ghz then that could be interfering. i doubt it, but stranger things have happened!
     
  8. Rednut05

    Banned

    Joined: 1 Aug 2005

    Posts: 908

    Remote Central Locking seems to broadcast on 434MHz.

    Try reading this.... Clicky

    Its ment to be a well known problem.

    Thats all my internet trauling for today.