Some door lock advice please

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WT,

All mine quit working at the same time yesterday. How can all five stop working at the same time I thought to myself? I lock and unlock multiple times, it seems strong at first, but eventually slows down until nothing at all. This is crazy, look forward to your findings.

Kev
 
Sorry for the delay in response, today is the first chance I’ve had to get back to this problem. I just finished replacing the actuator motor in the driver’s door and it works perfectly, just like the passenger front door that I replaced earlier. After I replaced the one today I sat in the car and cycled the locks 10 – 15 times. The two doors that have the new actuator motors in them worked every time while the others stopped working after 2 or 3 cycles. I repeated this after about 10 minutes with the same result. I’m going to try and finish the rear doors and hatch this weekend but the problem I have is almost certainly the individual actuators, as unlikely as that seemed when they were all displaying the same problem. I’ll do a final post after I finish the rest of them.
 
Hey guys, I know this is an old thread so I'm not too hopeful that anyone will actually see this. That said, I have the same problem. The switch on the driver door and the clicker all result in the same outcome. They usually work and open or lock all doors reliably if I only press the button once. However, if I cycle the rocker switch or I press lock and unlock on the clicker more than a couple times in quick succession, all of the door locks fail to operate. As another guy said.... it seems like they don't get enough juice to operate. I have no indication of a bad battery and considering the battery spins the starter motor with ease, I don't think this is a power problem. If I wait a little while the locks will work again.. but only if I press the button once (lock or unlock). I read that a previous fellow relented and changed the motors on all four doors and that solved the problem but I thought someone else had done the same thing with a less satisfying outcome (it didn't fix it). I'm curious if anyone knows the theory of operation of the system. Does the ECU pulse the door lock actuators via a capacitor? This feels to me like the power source gets drained and takes a few minutes to "recharge." Could it be that a bad motor is pulling too much current and that causes circuit to drain so that subsequent lock/unlock pulses are underpowered? I, like the other guy on this thread, would rather not replace every motor only to discover that's not the problem.
 
Could be possible that a power source for the door lock actuators gets drained somehow and thus creates dysfunction in all the doors. Mine does the same thing but only if I leave her parked in the sun on a hot summer day. It seems that after operating the car for about a half hour the locks begin to function normally, probably once things cool down a bit.
 
Change the motors, they are going bad on you.

3 of my 5 were failing at the same time. My driver door would work if cycled intermittently but fail if cycled somewhat rapidly. As it got hotter here they just flat wouldn’t work.

Motors are $5 on eBay. The work is 95% the same whether buying the whole assembly or just replacing the motor. Safe yourself the hundreds of dollars per door and do just the motor.

A few words of caution: ALWAYS CHECK THE LOCK BEFORE BUTTONING UP THE DOOR AND CLOSING. Do NOT forget to reattach the outside door handle before buttoning up. Make sure child lock is off in the event something goes sideways.

It is simple. First one will take you 45 minutes to an hour. Each one after that will be 30 minutes.
 
LXJake93 said:
Could be possible that a power source for the door lock actuators gets drained somehow and thus creates dysfunction in all the doors. Mine does the same thing but only if I leave her parked in the sun on a hot summer day. It seems that after operating the car for about a half hour the locks begin to function normally, probably once things cool down a bit.
Click to expand...
I haven't noticed a correlation to the sun but I'll check that out. If there is a correlation, it further supports the idea that it could be a bad capacitor or other electronic component in the ECU.
 
utflowerman said:
Change the motors, they are going bad on you.

3 of my 5 were failing at the same time. My driver door would work if cycled intermittently but fail if cycled somewhat rapidly. As it got hotter here they just flat wouldn’t work.

Motors are $5 on eBay. The work is 95% the same whether buying the whole assembly or just replacing the motor. Safe yourself the hundreds of dollars per door and do just the motor.

A few words of caution: ALWAYS CHECK THE LOCK BEFORE BUTTONING UP THE DOOR AND CLOSING. Do NOT forget to reattach the outside door handle before buttoning up. Make sure child lock is off in the event something goes sideways.

It is simple. First one will take you 45 minutes to an hour. Each one after that will be 30 minutes.
Click to expand...
Do you have a link to the motors you used? I ordered a new actuator (the whole thing) not just the motor and it's should arrive today.
 
It was hotter than Hades today and I went outside to discover my door locks had gone dumb. Adding these little motors to my parts list...
 
bridgeburner said:
Please for the love of god someone tell me there is an easier way to replace these than what this video shows.
Click to expand...

Of course there is, drop it off at the nearest Toyota/Lexus dealer, and have them replace the whole door lock actuator assembly…

Easy, but not cheap.
 
MickV said:
I haven't noticed a correlation to the sun but I'll check that out. If there is a correlation, it further supports the idea that it could be a bad capacitor or other electronic component in the ECU.
Click to expand...
I’m with you MickV. Locating it will be a mission.
 
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I’m experiencing the same thing with my locks for quite some time. Only when in the hot Sun ! It’s making me crazy, especially when I cannot reach the rear door lever because of gear.

I’ve been told to replace the individual actuators, but a common problem that goes away when it cools down tells me that there’s a component other than all of the doors. Some fail before others but they’re all vulnerable to the heat and seem to have some loss of power being fed to them. Eagerly looking for a post about a central component, i.e. relay or capacitor, etc.
 
longjohn said:
It was hotter than Hades today and I went outside to discover my door locks had gone dumb. Adding these little motors to my parts list...
Click to expand...
Me too. Only in the Sun, every summer. Some locks fail before others. Sometimes all. There must be a central component somewhere.
 
LXJake93 said:
Could be possible that a power source for the door lock actuators gets drained somehow and thus creates dysfunction in all the doors. Mine does the same thing but only if I leave her parked in the sun on a hot summer day. It seems that after operating the car for about a half hour the locks begin to function normally, probably once things cool down a bit.
Click to expand...
Same here. For many summers. Not seeing a central component but some have the problem after replacing individual door actuators so I’m holding out and hoping to find a central issue.
 
wtgriz said:
Thanks for the reply!

I have only noticed all 5 locks acting up at the same time. Of course when using the key on the driver's door, that door unlocks mechanically. However, after that, even using the interior button seems to have the same weak affect on the remaining locks. Sometimes starting the engine helps, sometimes just waiting a few minutes helps. Without knowing all of the locking components or their interactions, if I had to guess, it seems that there is some master control and for whatever reason, occasionally it does not send out a strong enough pulse to operate all of the locks. Also, cycling the locks more than a couple of times even when they are all working correctly, seems to have a draining effect on the system.

I don't thinks it a battery or general power issue as all other power systems seem fine, windows, lights, etc.
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I'm having the same issues. The battery in the remote died. After replacing it, locking the truck worked. Lights flashed. Unlocking seemed to work as well. When I tried to lock it, the lights didn't work.

Switching from locked to unlocked with the remote stopped activating the locks. Lights flash and beep for lock but the locks don't lock. No lights for arming it and the locks don't work.

I can hear something in all the locks but it's as if they are all failing in the same way at the same time.
 
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