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Thread: Can't program key fob

  1. #1
    Registered Member mazdamom49's Avatar

    2002 Protege ES

    Join Date
    Dec 2010
    Location
    Easley,SC
    Posts
    35

    Can't program key fob

    I am trying to program the old key fob from my 2003 Protege to my daughter's 2006 3. I've done the lock/unlock door, the turn the key to on three times and open/close the door three times, but the ECU doesn't respond. If I need to clear the codes in the ECU, how do I do that, if not that, then what? Might the fact the door light doesn't come on have something to do with it? I don't relish spending $35 to $50 bringing it somewhere for them to do it. I also did the diagnostic check that I found on another forum: turn the key on/off four times, open/close door three times. Absolutely no response from the ECU. So, does that mean I need to reset the ECU?
    Last edited by mazdamom49; 01-23-2017 at 06:35 PM.
    2002 Protege ES
    2003 Protege ES Totaled
    2002 P5 Totaled
    1988 323

  2. #2
    Registered Member

    mazda 3

    Join Date
    Feb 2017
    Location
    Raleigh
    Posts
    3
    Bump, I am having the same issue on in my 06 3s

  3. #3
    Registered Member

    Mazda 3

    Join Date
    Aug 2017
    Location
    Milwaukee, Wisconsin
    Posts
    8
    If the door light does not come on, it probably means that the switch is not closing when the door is closed. Or it might be that the procedure you're following is not exactly correct or you might not be following it closely enough. I'll post a pic of the door switch later, and verify the correct procedure with my car.

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