Door Lock Actuators Upgrade???

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Boston Mangler

Boston Mangler

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Hey All

Search hasnt found much on this topic other than its somewhat common, and folks replacing them.

Digging through the service history of my 2010 with 212k miles, it looks like ALL of the door lock actuators were replaced at least twice (one of them 3 times) with dealer OEM parts.

2 (rears) have failed again.

I've owned 1 of almost every Yota 4x4 ever made, some with close to 500k on them, and honestly dont think i've ever and a door actuator fail on any of them.

I am going on the base of these are just a weak part from the factory.

I am usually a stickler for OEM, especially with electrical, but looking for options here.

Anyone use any aftermarket actuators with long term success?

Thanks
 
2021 LC200 said:
Any chance these OEM parts were actually made in China?
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Not sure. Truck is new to me and haven’t ripped it apart yet

But I just ordered some AISIN brand actuators I found, and I’ve had good luck with AISIN in the past.

Fingers crossed

IMG_8668.webp
 
Will post pics and procedure on my build thread when they arrive
 
njbrain said:
Aisin is likely the OEM supplier for the Toyota Actuators. Most of the failures are caused by silicone based car care products crystallizing in the motors.
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Well… if car care products are the cause, the new ones will last forever 😂😂😂
 
njbrain said:
That is why mine don't fail. I have a rolling dirt wagon. After years in a dealership I have noticed that they usually fail in the cars that have the sparkly clean interiors.
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When I first read your reply I admittedly chuckled

But it makes sense.

The interior on mine is immaculate and very odd for such high mileage.

Guessing they detailed it often.

Not anymore 😂👍🏼
 
My driver and front passenger failed and I don't use any special products to clean it. I replaced the motors in the actuators. Bought 4 motors on amazon for like $18 if I remember correctly. There's a thread about it in here.
 
Well, good news and bad news.

I was able to get both of my rear door lock actuators replaced, and it was easy peazy.

Bad news, theyre identical part # to the ones i pulled out, which LOOKED to be in perfect condition. no corrosion, muck built up, looked brand new etc... Will see how long it lasts.

I would definitely rate this task as a one Banana :banana:

Other write ups on here detail a pretty involved process of removing a bunch of stuff and this that and the other.

PROTIP: Remove door panel, remove 3 screws holding actuator into door, rotate it counterclockwise and remove it through hole while everything is still attached. Place new one beside it, swap cables over, return to position clockwise, and reinstall 3 screws.

Just Make sure door latch lines up with fork while rotating back in place, and Bob is your uncle.

I am a big clumsy oaf with sasquatch hands and didnt have any issues.

Observation: Before replacing them, i wouldnt get a chirp confirming the doors were locked (because they werent), now i do and all 4 are functioning like they should. Woohoo!

door2.webp
 
Boston Mangler said:
Well, good news and bad news.

I was able to get both of my rear door lock actuators replaced, and it was easy peazy.

Bad news, theyre identical part # to the ones i pulled out, which LOOKED to be in perfect condition. no corrosion, muck built up, looked brand new etc... Will see how long it lasts.

I would definitely rate this task as a one Banana :banana:

Other write ups on here detail a pretty involved process of removing a bunch of stuff and this that and the other.

PROTIP: Remove door panel, remove 3 screws holding actuator into door, rotate it counterclockwise and remove it through hole while everything is still attached. Place new one beside it, swap cables over, return to position clockwise, and reinstall 3 screws.

Just Make sure door latch lines up with fork while rotating back in place, and Bob is your uncle.

I am a big clumsy oaf with sasquatch hands and didnt have any issues.

Observation: Before replacing them, i wouldnt get a chirp confirming the doors were locked (because they werent), now i do and all 4 are functioning like they should. Woohoo!

View attachment 3598921
Click to expand...

Next time just replace the motors in the actuators. It's a lot cheaper.
 
NYC570 said:
Next time just replace the motors in the actuators. It's a lot cheaper.
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Yes, I am going to take the bad ones apart, replace the motors and keep them for “next time”
 
Hmm if they failed and then failed again I would think about that you may have sone electrical gremlin in front of them somewhere in the electrical system?
 
What was the source of these AISIN "made in japan" actuators? There are a lot of imitation parts around from ethicless China.
 
2021 LC200 said:
What was the source of these AISIN "made in japan" actuators? There are a lot of imitation parts around from ethicless China.
Click to expand...

RockAuto
 
TheComedian said:
Hmm if they failed and then failed again I would think about that you may have sone electrical gremlin in front of them somewhere in the electrical system?
Click to expand...

I've considered this, but based on service records this has been happening since new.

The first set (2 fronts) were replaced under warranty at around 40k, and owner was an elderly fella, so confident he wasnt in there messing with anything to cause gremlins, but ya never know
 
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