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Thread: Can't program key fob

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    Registered Member mazdamom49's Avatar

    2002 Protege ES

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    Dec 2010
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    Easley,SC
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    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

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