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Weird Dome light issue for just Drivers side Front and Back doors

Discussion in '5th Gen 4Runners (2010+)' started by markolomew, May 31, 2020.

  1. Sep 12, 2020 at 5:03 PM
    #31
    mstgeer

    mstgeer New Member

    Joined:
    Jan 6, 2020
    Member:
    #12592
    Messages:
    8
    Gender:
    Male
    First Name:
    Michael
    Vehicle:
    '13 Limited Blizzard Pearl
    How did you go about programming your
    keyless remote to function with the replacement bcm?
    I had a similar issue with bad led bulbs and replaced the bcm with a used model, but have not been able to get the smart key remote keyless entry to work.
     
  2. Sep 12, 2020 at 5:07 PM
    #32
    markolomew

    markolomew [OP] New Member

    Joined:
    May 31, 2020
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    #14649
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    Male
    Vehicle:
    2014 4Runner
    Actually, I didn't do anything. I changed out the ECU and everything just worked.
     
  3. Sep 12, 2020 at 5:12 PM
    #33
    mstgeer

    mstgeer New Member

    Joined:
    Jan 6, 2020
    Member:
    #12592
    Messages:
    8
    Gender:
    Male
    First Name:
    Michael
    Vehicle:
    '13 Limited Blizzard Pearl
    Your runner have a smart key? Maybe I got a bum replacement bcm? Or one not compatible with a smart key? Part numbers from both are exactly the same.
     
  4. Sep 14, 2020 at 1:09 PM
    #34
    ElectroBoy

    ElectroBoy Ad astra

    Joined:
    Jul 29, 2020
    Member:
    #15823
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    Male
    Vehicle:
    2018 ORP
    Check the other forum. There’s a similar thread there. If seems the BCMs have the same hardware part number label on them from the manufacturer. But they are programmed with different firmware depending on the trim. So a Limited BCM will have different functions than an SR5. You’d think there would be some additional post-programming stamp on them to indicate the trim application. You may need to compare every marking on your old one to the new one to find any difference. Maybe take it to the dealer to figure it out.
    Check out the advise here:
     

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