Multiple door lock actuator issues

Discussion in 'Mazdaspeed 3 General Discussion' started by Rgurleyjr, Feb 10, 2019.

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  1. Rgurleyjr

    Rgurleyjr Silver Member

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    Bought my first mazdaspeed yesterday. It seems like all 4 door lock actuators are either dead or almost dead. When hitting the lock and unlock buttons the back two barely move and the front don't move at all. I hear most actuators try, but little movement.

    I did some searching and didn't see many threads at all regarding issues with them. Unless the mazdaspeed is different from every other car I worked on, seems like every actuator is the problem. Since the button trys to move them, I'd rule out a electric problem.

    Is there a big problem with these? Any other tips for me?
     
    Rgurleyjr, via a mobile device, Feb 10, 2019
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  2. jsmith

    jsmith Silver Member

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    Its unlikely that all of them failed the same way at the same time. So look up stream? Could it be a power issue on that circuit?
     
    jsmith, via a mobile device, Feb 10, 2019
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  3. Rgurleyjr

    Rgurleyjr Silver Member

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    Yeah but it seems like some try. I probably need to listen for noise at the ones that don't move at all. Or check 12v power to it. I saw both rear door locks budge a little so they must be getting 12v. Pain in the butt...got some other issues with the car too.
     
    Rgurleyjr, via a mobile device, Feb 10, 2019
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  4. Raider

    Raider Administraider Administrator Platinum Member

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    Power and ground are first to test. Maybe the battery is bad.
     
    Raider, via a mobile device, Feb 10, 2019
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  5. Maisonvi

    Maisonvi Silver Member

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    Actuators take a shit ton of current. Do they work when the car is running? You might have a weak battery.
     
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  6. Rgurleyjr

    Rgurleyjr Silver Member

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    I haven't tried when the car is running but there are no other noticable battery problems.
     
    Rgurleyjr, via a mobile device, Feb 11, 2019
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  7. 5doorsoffury

    5doorsoffury Greenie Member

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    Im betting on a bad connector/connection. I have seen half blown fuses drop voltage across it on circuits that dont have a constant power draw. Door lock actuators just dont all go bad. Check your relays in the bcm to make aure there seated.
     
    5doorsoffury, via a mobile device, Feb 11, 2019
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  8. Rgurleyjr

    Rgurleyjr Silver Member

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    Wanted to follow up for those searching.

    It was each individual door lock actuator. I bought the front door lock actuators, replaced them, and problem solved. The rear two still work but getting pretty weak. Replacing them wasn't too bad.
     
    Rgurleyjr, via a mobile device, Mar 31, 2019
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  9. Db09ms3

    Db09ms3 Silver Member

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    My driverside window master switches were acting up at one point, lagged sometimes and one window would respond whenever it wanted. I pulled out the assembly, took it apart, cleaned the contact points under the switches with alcohol and let it air dry. I haven't had issues since.
     
  10. Rgurleyjr

    Rgurleyjr Silver Member

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    Great info to know. Thanks for sharing. And for those needing to replace their actuators or interior door handles, the interior handle assembly can easily be removed. Don't fight the cables with the handle in place, remove the handle first. I fought the cables for an hour
     
    Rgurleyjr, via a mobile device, Apr 1, 2019
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