Skip to content
  • Announcements regarding our community

    4 Topics
    7 Posts
    Z

    Hello everyone,
    I'm French.
    I'm happy to join your community.
    I own a beautiful V60 B4D from 2024.
    I'll be contacting you with various technical questions, as I'll be working on the car myself, given that Volvo service in France isn't very competent.
    Thank you for your help in advance.
    Zortin

  • 197 Topics
    647 Posts
    T5 T6 SchnappiT

    @VolvoAugust Do a short test without the charger attached, to rule out interferences from it.
    And take into account, that the brute forcing of the CEM and ECM pin are not comparable in terms of speed. Your ECM seems to be somewhat slower to crack. So you need to be patient.
    If you don't want to wait for up to 90 hours, your only alternative would be bench reading. This involves removing the ECM from the car and take it to someone who is able to open it, and read and decode the content directly from the EEPROM with special tools and software. Most ECU repair workshops should be able to do this, but not for free and with the risk of damaging the ECM, especially the pins in the connectors, while removing/installing it.

  • 47 Topics
    119 Posts
    T5 T6 SchnappiT

    @sizan Is the DPF also physically removed from the car?
    You should also check if the correct injector class is set in the ECM, before you try different software.
    Another stupid question. Does the VIN that is reported by the CEM/shown in Vdash match the VIN that is stamped in the chassis?

    Vdash has a backup/clone function. So it should be possible to make a backup before flashing different software. The button is somewhere in the top right corner between "configuration" and "Ecu diagnostic", after the car is connected.
    Attach a really good charger while flashing/backup.
    When the programming is done, shut off the car and leave it alone for a while. And be prepared that the car might not start at the first attempt after flashing. This is normal on some cars.
    On some cars you also need to reset the ECM adaptions after a flash. I can't tell you if this required on this specific engine.

  • 27 Topics
    137 Posts
    T5 T6 SchnappiT

    @Ctrl-alt-delete before you start to fire the parts canon, you should know that 90%of all MAF codes are follow up errors of other problems. Old/weak batteries, dirty MAP sensor, dirty throttle body, carbon build up in the EGR/EGR cooler. There is also a technical journal about a design flaw in the EGR cooler of older VEA diesels, that triggers P010000 and requires replacing EGR and cooler with redesigned parts.
    The data you have collected is also not really useful, unless you find the signal specifications of the ECM, to check if everything is in the desired range. This data can be found in the online version of VIDA which is not accessible for private user, unless you live in the US. VIDA also has detailed explanations what triggers code XYZ and an associated fault trace with things to check, to find the cause for the code. This kind of vital information can hardly be found in the internet.
    You also should know that Volvos don't like aftermarket sensors. Replacing the MAF with an aftermarket part might not solve your issue, if it's really the MAF.
    Your first step should be to get a good Volvo capable diag tool and scan the car with that. Not only the ECM, all ecus. A dead battery for example will trigger several communication codes in several ecus. You should also take a look at the freeze frame data, that is stored together with the code and consists of a set of data/parameters that happened in the moment when the code was stored, which could be helpfull to identify some problems.

    The J2534 is a complicated SAE standard that describes/specifies all kinds of communication protocols between all ecus in your car and a computer through a VCI. Dataformats, bitrates, commands, timings, signaling specifications and what not for programming, diagnostics, activations and so on. Substandards are J2534-1 for ECMs, J2534-2 for all other ecus. Without J2534 compatible firmware/drivers/software, your cable won't be usable for the things you want to do.