Volvo ecm problems




Volvo ecm problems

Article Navigation:
  • Photo
  • Symptoms of a Bad or Failing Engine Control Module (ECM) | YourMechanic Advice
  • Video
  • RELATED PAGES
  • Volvo V70, S60, S80 & XC90 instrument cluster problem. Volvo S80/V70/C70/S60 throttle body (Magneti Marelli) Volvo C30, C70, S40 & V50 ABS Pump Module fault.

    Volvo - Problems with ECM - Hi, my '95 T5 (manual) has one problem, which occurs sometimes. The issue is that while driving (no matter what rpm.

    When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undriveable. Usually a bad.

    Volvo ecm problems

    Volvo ecm problems

    A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem. You may call me at or reply via email. Is this overheating a frequent issue in C70? Can you flash the C30? Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session.

    Volvo ecm problems

    Volvo ecm problems

    Volvo ecm problems

    Volvo ecm problems

    Volvo ecm problems

    Ecm Problems - FWD/AWD - - Volvospeed Forums

    You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members PM , respond to polls, upload content and access many other special features.

    Registration is fast, simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact contact us. Mar 11th, , Dec 27th, I have a S40 2. New one fitted 6 months ago ECM DPF Pressure sensor fault ECM DPF pressure sensor faulty signal I also have ECM C Control module faulty software checksum but this has always been there Checked the pressure and they were high but within spec to do a regen 70Hpa Ran the DPF regeneration which seemed to run ok Ran the pressure checks again and they were within specs and the alarm cleared I ran the car for the day until the problem started again Same codes appeared but the pressure checks showed over Hpa Thought I'd run the regen again which again seemed to be ok.

    Volvo ecm problems

    But when I shut down and restated the engine to check the pressures the car suddenly ran the revs into the red and did look like it was going to stop,si I switched off After that it won't start again with the codes reading ECM Engine switch off faulty signal Did all the checks relating to this and nothing amiss Other odd codes appeared ECM Turbo contral valve And one about the brake lights switch At this point I decided to remove the battery and give it a charge which would give the ECU a chance to reset itself.

    But there doesn't appear to be anything relevant Any advice and or help would be appreciated. Apr 13th, Thanks for the reply I don't thinks so as the car hasn't moved since this started and all was behaving normalish before the regen. Mar 12th, , Terminals can get corroded, maybe worth a look see, other than that it's a process of elimination. Dec 23rd, As bongo says I would with the battery disconnected for 10 minutes disconnect the CEM and check for corrosion on the pins.

    Volvo ecm problems

    Its unlikely to cause the redline issue as that would have to be a high voltage to give it max RPM and corrosion causes a low voltage unless as said there is water in there. Considering all the faults are CEM based and not "physical" but software related I would suggest there is an electrical short not a mechanical issue. Thanks for the feedback It certainly looks voltage related ad I charged the battery again last night and tried again and initially all faults cleared.

    Tried starting and got the usual suspects but not the CEM fault but when the volts dropped to around All VIDA says it right at the front with an arrow. The CEM is fitted in the passenger foot well under a scraggy looking piece of carpet under the glove box. Look underneath and you will see the piece of carpet with two plastic rivets holding it on. Push the centers of the plastic rivets in try not to loose the center bits and pull the rivets out, the carpet will then come out the way.

    You will then see the white plastic CEM and it is held in with two Dzeus fasteners that need to be turned about 90 degrees and the CEM will then drop down exposing all the fuses.

    Volvo ecm problems

    If your going to unplug it then you can lift up the back a little and pull towards you and it will come completely free exposing the plugs at the rear. You say that you have a voltage of Where and how are you measuring that?

    A healthy battery should be about If you have a multi meter then put it across the battery terminals and verify the voltages your getting as you shouldn't be getting The cause of your problem might be a faulty alternator voltage regulator as opposed to a CEM issue if you get no faults untill the voltage drops to The computers seem to be super sensitive to voltage.

    engine control module ECM/ECU repairing



    • Подписаться по RSSRSS
    • Поделиться VkontakteVkontakte
    • Поделиться на FacebookFacebook
    • Твитнуть!Twitter

    Leave a Reply

    Return to Top ▲TOP ▲