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04 Megane Electrical Problem

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  • 18-02-2011 10:56pm
    #1
    clown_man
    Closed Accounts Posts: 4 ✭


    Hi
    I have an 04 petrol megane
    I went to start it today and all the warning lights came on and the display said electrical problem.
    Then the wipers came on and wouldn't turn off.

    When i tried to turn off the car it stayed running,so i conked it to turn it off.
    So i checked all the fuses and they were ok and disconnected the battery,left it for 20mns and when i reconnected it the car started even tough the key was in my pocket.
    Has anyone ever heard of problems like this?
    Thanks
    Tagged:


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    #2
    pie-man
    Registered Users Posts: 60 ✭✭pie-man


    sounds water damage/ingress or a faulty uch(body computer). first port of call get it plugged to a scan tool.

    hope this helps


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    #3
    clown_man
    Closed Accounts Posts: 4 ✭clown_man


    Thanks for the response
    Ill have to get it checked out on monday
    I have the battery disconnected in case it decides to go for a spin when im in bed :D

    Got it checked today and was told that the ecu is fried,could cost 2k to get it fixed


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    #4
    STC
    Closed Accounts Posts: 10 ✭STC


    i know 2 people with meganes and had same problem, is it key card starter, have always had problems with the electrics, know im not much of help and best of luck, hope it doesnt cost 2 much


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    #5
    Plug
    Registered Users Posts: 9,248 ✭✭✭Plug


    Get a second hand ECU, get an a cheap mechanic to fit it and then get it programmed at a main Renault dealer.


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    #6
    pie-man
    Registered Users Posts: 60 ✭✭pie-man


    fyi clownman youll find that any second hand stuff is vin locked. there are ways around this with specialist equipment. the other option is to fit a complete immo/ecu kit...theres plenty of them on ebay but youll only need to cross that bridge when you come to it also a new engine ecu comes preprogrammed from renault. a uch doesnt need to be programmed, just adapted and configured. maybe post fault codes and we could help more


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