Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: synchronizing key mk4 astra

  
  1. #1
    Status
    Offline
    Hutchysrs50's Avatar
    AOC Regular
    Join Date
    Feb 2009
    Posts
    188
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    synchronizing key mk4 astra

    Hi, i have a 2000 mk4 astra and the key doesnt work to unlock the doors

    the previous owner said he stopped working so he put a new battery in and it still doesnt work, im pritty sure therea about a 30 minutes time limit to get them working again from the time the battery goes flat...

    so... iv looked around and some people say put the key in, turn it so the dash lights up and press the key fob within 30 seconds and the doors should "look and unlock"...

    well iv tryed that and nothing happens....

    any ideas how to get it working again?

    thanks.

  2. #2
    Status
    Offline
    Autosparks's Avatar
    Technical Advisor
    Club Team
    Join Date
    May 2003
    Drives
    VXR Nurburgring
    Location
    N/W London
    Posts
    39,745
    Mentioned in
    115 Post(s)
    Quoted
    70 Post(s)
    You have tried the resync method so the remotes probably at fault. Does it lock the doors (as you only mention unlock)?
    Want a professional job done on fitting your aftermarket electrical accessories? PM me for a quote
    Electrical fault finding also taken on
    Located in N/W London HA3, and willing to travel within reason





  3. #3
    Status
    Offline
    Enigma ???'s Avatar
    AOC Obsessed
    Join Date
    Jul 2007
    Posts
    2,468
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    I take it it doesn't light up at all if so the Battery connection on the remote is broken take out and resolder

  4. #4
    Status
    Offline
    circushead's Avatar
    AOC Regular
    Join Date
    Jan 2009
    Posts
    80
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    to synchronise the remote all you need to do is unlock the door using the key then put the key in the ignition and that should be it.

    If that doesnt work then there is something wrong with the remote.
    2005 Astra Mk4 Convertible Exclusiv
    1977 Opel Kadett C City SR - only 410 made
    1971 Triumph Vitesse Convertible

  5. #5
    Status
    Offline
    Hutchysrs50's Avatar
    AOC Regular
    Join Date
    Feb 2009
    Posts
    188
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    the red light on the remove does light up when i press the buttons.

    The buttons dont lock or unlock the doors.

    I put the key in untill the dash lit up and pressed the buttons, tryed both buttons and also tryed holding them down.


    when i use the key, all the doors lock and unlock fine, just not with the remote key fob.

  6. #6
    Status
    Offline
    filtee's Avatar
    AOC Regular
    Join Date
    Jan 2009
    Posts
    235
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    The battery conections come loose. get a piece of paper and fold it a couple of times and place it on top of the battery. When you put the fob back together it will push the battery and create a better connection.. If that still doesnt work sit in the car with the doors unlocked and put the key in the ignition and turn to position 2 so all the dash lights are on. Hold your finger on the lock button for 3 seconds minimum and the doors should lock and it should work fine from then on. SHOULD. good luck

  7. #7
    Status
    Offline
    Hutchysrs50's Avatar
    AOC Regular
    Join Date
    Feb 2009
    Posts
    188
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by filtee View Post
    The battery conections come loose. get a piece of paper and fold it a couple of times and place it on top of the battery. When you put the fob back together it will push the battery and create a better connection.. If that still doesnt work sit in the car with the doors unlocked and put the key in the ignition and turn to position 2 so all the dash lights are on. Hold your finger on the lock button for 3 seconds minimum and the doors should lock and it should work fine from then on. SHOULD. good luck

    ok, the connections seems fine, the light on the remote goes red when i press both buttons.

    sadly i have no idea which button does what as there just rubber now, no markings

    if you would happen to know which one is the lock button, would be fanastic

    to make it abit more simple. just say if its the one closest to the key or the one furthest away from the key. Thank you

  8. #8
    Status
    Offline
    Hutchysrs50's Avatar
    AOC Regular
    Join Date
    Feb 2009
    Posts
    188
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    well i looked on google to see which button it was to lock...

    anyway, just got in the car to try it and its compleatly dead!!

    i have no idea if iv left somthing switched on or if the battery is gone, but i do know that at 2 the car was full of life, everything would light up and was enough to turn the engine over.

    now... Nothing, not even the display on the dash would light up...

  9. #9
    Status
    Offline
    filtee's Avatar
    AOC Regular
    Join Date
    Jan 2009
    Posts
    235
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Even thought the light comes on you could still do with wedging some paper or cardboard in there. I only know cos i had exactly the same problem. The one nearest the key is unlock. You can get a replacement key from a scrappers or ebay. I got one for mine cos my buttons were worn. Just swap the key bit and make sure you swap the litlle push in transponder thing.

  10. #10
    Status
    Offline
    Hutchysrs50's Avatar
    AOC Regular
    Join Date
    Feb 2009
    Posts
    188
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    ok, so the battery has lots of life in now and the car runs fine.

    so i tryed putting the key in and turning to light up the dash, and holding the lock button for 5 seconds.. 10 seconds.. ect... same with the open button, with no luck!!

    they remote has a new battery in.
    the red light on the remote lights up when i press either button
    all the doors lock and open with the key.

    any ideas?

    thanks.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •