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Power locks lock, but not unlock

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    Power locks lock, but not unlock

    Like the subject says, the power locks lock, but don't unlock. I hear the relay click when I unlock the main door, just the power locks don't do anything when I do that. They all go down if I lock the driver's door. Just curious if anybody has had this problem.

    When I get time, I'll try and find another power lock relay to test out, then I'll go for a motor if it still doesn't work.
    2006 Mazda 3 hatchback manual

    #2
    relay might be bad or the switch inside the door. It sits kinda low and is pretty small, 1/2" square IIRC.

    Easy to test at the relay, work the lock up and down and check for voltage. If there's no voltage on unlock, then the switch is bad, if there is then the relay is bad.

    Z-86 is the diagram number

    from switch in door to relay
    LOCK = green/red
    UNLOCK = green/orange
    power at the switch
    12V+ = blue/red

    from relay to other doorlock motors
    LOCK = green
    UNLOCK = red
    power at the relay
    12v+ = white/green
    GROUND = black

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      #3
      A new relay fixed it, thanks
      2006 Mazda 3 hatchback manual

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