VW Jetta MKIV/MK4: immobilizer problems solved |Volkswagen Bora
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    Default immobilizer problems solved

    So I used to post here all the time but work and life have taken over so it's been years since my last post oh and I forgot my password for my old user name but I figured out a very tough problem on my own mkIV this week. I've seen this problem happen on other mkIV cars as I am in the vw repair industry and we'll until it happen to my car we shipped them to the dealer cause well I can't program keys but that's soon to change so onto the problem. My car wouldn't start one day no reason, no dead battery, no instrument cluster removal,blah blah blah we all have heard it. So I was set to figure it out after a few hours what I found was the factory crimp on the wires at the plug at the antenna ring on the lock cylinder. In my opinion a mistake on vw engineering department. A couple drops of solder later car starts like a charm just wanted to share this info with the community

  2. #2
    Jetta Junkie Moderator Skimmer0220 is on a distinguished road Skimmer0220's Avatar
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    Default Re: immobilizer problems solved

    the door lock modules have the same problem, however that is much more frequent, haven't really seen many people with the issue of the antenna at the lock cylinder, but good to know if the problem ever arises
    Hidden Content Originally Posted by Gargamelmk2 Hidden Content
    Its very windy....accidentally pissed on it.....I have no regrets

  3. #3

    Default Re: immobilizer problems solved

    Hey Skimmer been a while but I've never seen a door lock module cause a no start as you can leave them unplugged and car still starts. This is an immobilizer issue. Sad thing is all mkIV cars and audi have same crappy connection. I took pics to show a couple other fellow vw friends in the automotive industry I'll post in a minute

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    Jetta Junkie Moderator Skimmer0220 is on a distinguished road Skimmer0220's Avatar
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    Default Re: immobilizer problems solved

    Quote Originally Posted by roguevw View Post
    Hey Skimmer been a while but I've never seen a door lock module cause a no start as you can leave them unplugged and car still starts. This is an immobilizer issue. Sad thing is all mkIV cars and audi have same crappy connection. I took pics to show a couple other fellow vw friends in the automotive industry I'll post in a minute
    Yea the door lock won't cause a no start but it will cause alarm issues and door locking issues, just saying it's the same crappy soldering in the door lock modules


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    Hidden Content Originally Posted by Gargamelmk2 Hidden Content
    Its very windy....accidentally pissed on it.....I have no regrets

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    Junior Member FireBanana is on a distinguished road FireBanana's Avatar
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    Default Re: immobilizer problems solved

    Hi - Thanks for all the info. I'm keeping my 2002 Mighty Jetta GL Wagon chick magnet on the road and really appreciate the input. Having same issues with door locks as mentioned. Wanted to know if you ever posted the pics - would greatly appreciate. Thanks!

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    Jetta Junkie Moderator Skimmer0220 is on a distinguished road Skimmer0220's Avatar
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    Default Re: immobilizer problems solved

    Quote Originally Posted by FireBanana View Post
    Hi - Thanks for all the info. I'm keeping my 2002 Mighty Jetta GL Wagon chick magnet on the road and really appreciate the input. Having same issues with door locks as mentioned. Wanted to know if you ever posted the pics - would greatly appreciate. Thanks!
    are you having the issue with the alarm not turning off or using the key turned in the door not turning off the alarm?
    Hidden Content Originally Posted by Gargamelmk2 Hidden Content
    Its very windy....accidentally pissed on it.....I have no regrets

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