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Ford Mondeo 2009 2.0 Diesel Immobilizer Issue After Battery Discharge

bjornerikneverdal 1083 3
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  • #1 20867246
    bjornerikneverdal
    Level 1  

    Hi!

    I have a Ford Mondeo 2009 2.0 Diesel. I parked it for the winter and forgot to start the car throughout the winter. I had a flat battery and immobilizer active. I disconnected the battery and fixed the contact point to the battery. I charged up the battery, but still have the same problem.

    Does anyone have an idea?
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  • #2 20868343
    cieniaszek
    Level 11  

    The first thing is to check all the fuses.
    Try turning the ignition on and off and clicking the remote to make the car lock and unlock. Maybe it has an added alarm.
    The next step is to synchronize in the PATS function. You count the exit and entry codes, but you need 2 keys for this.

    Added after 5 [minutes]:

    And you would check the plugs under the GEM module above the passenger legs, the one with the fuses. He likes it to be green there, especially after a long stay.
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  • #3 21385978
    keder24
    Level 1  
    Part,
    Have you been able to solve this problem? What was the cause?
    I have a similar problem in my Ford.

    Moderated By CameR:

    Reg. 3.1.19 Publishing entries in archive discussions.

    Create your own new topic and describe in detail the symptoms of your problem and write what you have already checked, eliminated

    .
  • #4 21386212
    skleppoczesci
    Level 6  
    Check the fuses: Make sure all fuses are in good condition and not blown.
    Synchronise PATS: You can try to reset the immobiliser system (PATS - Passive Anti-Theft System) with both keys. To do this, you will need to count the input and output codes using both keys, or alternatively connect a diagnostic computer to check for errors in the system.
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