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Only driver door will lock/unlock

Discussion in '4th Gen 4Runners (2003-2009)' started by djhopmez64, Feb 24, 2016.

  1. Feb 24, 2016 at 11:45 PM
    #1
    djhopmez64

    djhopmez64 [OP] New Member

    Joined:
    Feb 24, 2016
    Member:
    #1616
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    Gender:
    Male
    Vehicle:
    2007 4runner sr5 v6
    My drivers door is the only door that unlocks from the key fob and master switch. Very rarely will the passenger and rear doors unlock. The windows work fine. I tried using a different master switch I bought off ebay which was taken out of a 2009, problem still remains.
    Is it the actuators on the doors? I cant find answers anywhere about this issue. There use to be an after market alarm in this car which was removed.
     
  2. Feb 25, 2016 at 8:24 AM
    #2
    T-Rex266

    T-Rex266 Moderator Staff Member

    Joined:
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    Colorado
    Vehicle:
    2014 Tundra
    I'm guessing the door lock actuators are going out.
     
  3. Mar 2, 2016 at 8:04 PM
    #3
    djhopmez64

    djhopmez64 [OP] New Member

    Joined:
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    Male
    Vehicle:
    2007 4runner sr5 v6
    So I just got done replacing the passenger side actuator, problem still remains... I used both master switches that I have, all doors lock but only drivers door will unlock. There was a aftermarket alarm put in and taken out of this vehicle in the past so I don't know if that is the problem, the wiring looks fine to me. I'm wondering if I should just buy a new master switch from the dealership since that was my local repair guy said was/is the problem.
    This is by far the most annoying repair Ive ever had to deal with.

    Oh and all the doors lock and unlock just fine while the car is running in drive position, not parked though. WTF :frustrated:
     
    Last edited: Mar 2, 2016
  4. Mar 6, 2016 at 3:41 PM
    #4
    djhopmez64

    djhopmez64 [OP] New Member

    Joined:
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    #1616
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    3
    Gender:
    Male
    Vehicle:
    2007 4runner sr5 v6
    So I paid the toyota dealership to run a diagnostic and the body ecu is bad. $1,100 for them to repair it... anyone have the part number for the body ecu?
     
  5. Jul 28, 2016 at 10:34 PM
    #5
    Serendipity

    Serendipity New Member

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    2016 4runner
    what is body ecu?
     
  6. Jul 29, 2016 at 8:40 AM
    #6
    Bob

    Bob Member Staff Member

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    SoCal
    The computer that controls the electronics in the car (windows, doors, A/C, etc)
     

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