Can the vehicle alarm damage the ECU?

Discussion in 'Tech/Mech General' started by Jez and Lin, Sep 8, 2016.

  1. Jez and Lin

    Jez and Lin Funster Life Member

    Joined:
    Dec 26, 2010
    Messages:
    1,013
    Likes Received:
    2,390
    Location:
    York, North Yorkshire
    Currently stuck in France after 4 days now with our motorhome in a Gararge 20 kilometres away after a breakdown on our first campsite.
    Communication is proving difficult with my school French just not able to come anywhere near understanding what the Garage is saying. Fortunately a Tugger ( Ill never knock them again :) ) who speaks fluent French spoke with them yesterday and they believe that the sigma vehicle alarm / immobiliser has damaged the engine ECU and now the engine turns over but won't fire.
    Four days in and I'm getting concerned that they don't really know what to do, the Mechanic said he has a friend who will be coming to see if he can repair it! I guess / hope he's an autoelectrician and not the local Farmer!
    If not it will require a new ECU cost around 900 euros plus labour ouch :(
    Just wondered if anyone has encountered this and would welcome any advice especially @eddievanbitz
    Thanks, Jez
     
  2. DBK

    DBK Funster

    Joined:
    Jan 9, 2013
    Messages:
    9,218
    Likes Received:
    12,829
    Location:
    Plympton, Devon
    • Like it Like it x 2
    • Thanks Thanks x 1
  3. Mr Colpot

    Mr Colpot Funster

    Joined:
    Apr 29, 2009
    Messages:
    708
    Likes Received:
    258
    Location:
    West Sussex
    We had a similar issue when I overloaded a 12v Cigar Lighter socket and it turned out it had blown one of the fuses under the bonnet. That was on a Peugeot Van. But I am guessing the garage will have checked fuses. Unfortunately I cant remember which fuse it was though.
     
    • Thanks Thanks x 1
  4. StitchesnFluff

    StitchesnFluff Funster

    Joined:
    Oct 18, 2014
    Messages:
    1,278
    Likes Received:
    548
    Location:
    Salisbury
    Yes, some fuses are squirrelled away under the bonnet !
     
    • Thanks Thanks x 1
  5. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    27,885
    Likes Received:
    26,962
    Location:
    Macclesfield
    To me that shouts "immobiliser". I think the normal method is to break the feed to the fuel pump. Have they said they know the fuel pump is running ?

    If Sigma is the problem remove that before starting on ECU.
     
    • Like it Like it x 1
    • Thanks Thanks x 1
  6. eddievanbitz

    eddievanbitz Trader - Funster

    Joined:
    Oct 4, 2007
    Messages:
    3,998
    Likes Received:
    12,417
    Location:
    Taunton Somerset
    I would suggest that you contact the installation company and establish what they did, get the notes emailed to the garage and ask them to "reverse" what the installer did.

    So long as it is correctly installed I cannot think of a situation that the system could damage a modern ECU
     
    • Like it Like it x 2
    • Useful Useful x 1
    • Informative Informative x 1
  7. Bart

    Bart Funster

    Joined:
    Jun 4, 2016
    Messages:
    1,865
    Likes Received:
    548
    Location:
    N.Ireland
    Hope you get your MH sorted soon and get your holiday back on track
     
    • Like it Like it x 1
    • Thanks Thanks x 1
  8. sdc77

    sdc77 Funster

    Joined:
    Jan 28, 2013
    Messages:
    2,801
    Likes Received:
    3,351
    Location:
    East london
    Good luck with this. It may be worth using a "translate" app on your smartphone if you have one.. or using a translate website on your laptop. You cold paste a couple of the replies above into it and have a slow but successful conversation with the garage.
     
  9. eddievanbitz

    eddievanbitz Trader - Funster

    Joined:
    Oct 4, 2007
    Messages:
    3,998
    Likes Received:
    12,417
    Location:
    Taunton Somerset
    Thinking about it, what chassis and what year? Please
     
  10. Jez and Lin

    Jez and Lin Funster Life Member

    Joined:
    Dec 26, 2010
    Messages:
    1,013
    Likes Received:
    2,390
    Location:
    York, North Yorkshire
    Sorry not been near WiFi. Okay we are back and running now however the ECU has been replaced ( I think - see following post ) and the alarm / immobiliser removed. This has cost 750 euros. Quite what has gone wrong is still a mystery ( language barrier!) The Van is 2001 2.8jtd ducato.
    Anyway back with the Van which quite honestly looked like it had been vandalized inside day before and will put it behind us.
     
    Last edited: Sep 10, 2016
    • Informative Informative x 1
  11. Jez and Lin

    Jez and Lin Funster Life Member

    Joined:
    Dec 26, 2010
    Messages:
    1,013
    Likes Received:
    2,390
    Location:
    York, North Yorkshire
    Thanks Hilldweller, that would make sense regards the symptoms. Hope they haven't rectified the fault by just removing the sigma and charging me for an ECU that wasn't needed! I should have insisted on seeing the removed item, they did charge me 5 euros for disposal of it ( an eco payment I guess ) but who knows? We are only on the other side of the Channel but it felt like we were in Timbuctoo at times.
     
    • Like it Like it x 1
  12. bungy

    bungy Funster

    Joined:
    Jan 24, 2010
    Messages:
    2,254
    Likes Received:
    4,167
    Location:
    Welsh marches
    Feel your pain. Just had a similar experience in italy. Kicking myself now as im mot convinced one of the parts replaced was what i have paid for.
    But we live an learn.
     
    • Like it Like it x 1
    • Thanks Thanks x 1
  13. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    27,885
    Likes Received:
    26,962
    Location:
    Macclesfield
    Best thing is stiff drink and just forget about it.
     
    • Like it Like it x 1
    • Funny Funny x 1
  14. Bart

    Bart Funster

    Joined:
    Jun 4, 2016
    Messages:
    1,865
    Likes Received:
    548
    Location:
    N.Ireland
    Its terrible when people stick the arm into you as they think you are loaded as you have a motorhome ,, well i sure aint loaded :)
     
    • Like it Like it x 1
Loading...

Share This Page