Central locking problem: locks and unlocks again

[AVEO 5 LS 2008] Central locking problem: locks and unlocks again

Hi all!

Well, the title says it all. A couple days ago I realised that my car was unlocked and I found it odd, once I remember to lock it. Then I locked it again with the FOB and it locked, but unlocked again like a loop. I checked if there was an open door, but all doors were properly closed.

I didn't find any related issue on the Internet (found many problems with central locking but none of them were the exactly the same or with the same cause, I think).

Symptoms:

• Door locks and unlocks if I press the FOB lock BUTTON
• Does the same if I use the key manually (both keys)
• It locks without problem if I unplug the central locking fuse
• I can't press the door lock down if the door is open (I am not sure if it is supposed, to be honest. But I can do it on the other doors)
• I can press the door lock down with the door locked. However all the doors lock (ok) and unlock again.

I already did:

• Disconnected the battery for 1 day. Battery is full charged.
• Check the fuses (they're ok)
• Disconnected the door lock actuator and cleaned the connection with contact spray
• WD-40 (Because... Why not?)
• Replace FOB battery

You need a new driver side door lock actuator. They go bad. Common problem. You know how to get to it now, just replace the entire module. The symptoms of a bad actuator are all variations of the same theme. Either the door locks cycle repeatedly or the locks want to stay unlocked after you try to lock it.

I go into more detail how the system works below. In your case, it's just seeing an "unlock" trigger when you try to lock the door

https://www.aveoforum.com/forum/f81/power-locks-snapping-off-sounds-like-machine-gun-going-off-25210/#post213957

Thank you for the reply!

In fact my door cover is still off because I though somehow it could be the door lock actuator, so I wouldn't have to mount it and then unmount it again to replace the actuator. My next challenge is to find an actuator (I'm not sure if I can find any in the junkyard), but with a little bit of research I think I'll get one.

However, replace it is not the easiest thing to do because it's in a very tight location and I can't see what I'm doing, perhaps the best thing to do is to ask my mechanic to replace it.

I'll give it a try and then I'll give you feedback :)

https://www.amazon.co.uk/Actuator-FR.../dp/B07MS8Z9HN

ships to Portugal

Quote:

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Originally Posted by chevrolate

Thank you for the reply!

In fact my door cover is still off because I though somehow it could be the door lock actuator, so I wouldn't have to mount it and then unmount it again to replace the actuator. My next challenge is to find an actuator (I'm not sure if I can find any in the junkyard), but with a little bit of research I think I'll get one.

However, replace it is not the easiest thing to do because it's in a very tight location and I can't see what I'm doing, perhaps the best thing to do is to ask my mechanic to replace it.

I'll give it a try and then I'll give you feedback :)

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The limited access is the worst part of replacing the actuator, I agree. Otherwise it would be a fairly benign process. If you have a flexible inspection camera you could try that for help. Or try taking a picture with your phone if you can get a decent angle.

When I replaced mine, I was able to mostly orient myself via touch after using an inspection camera to see how it all connected.

Hello everyone, thanks for the suggestions! Apologies for the delay, but I had other issues to sort out at the time and put this on the back burner. I didn’t want to follow up without having something substantial to share. But today, I’ve got an update :)
I managed to find the actuator and I have it now (it arrived today). I’m not sure if I’ll be able to test it in the next few days, and I only have time to work on the cars over the weekend. Since my 2-year-old son (who is obsessed with the garage, cars, and tools) is always with me on those days, I doubt I’ll have the patience and focus needed to replace the part. So, I think I’ll speak to my mechanic to get him to replace it. Since the door panel is already removed, it’s just a matter of swapping the mechanism, and he can do that in no time.
I’ll update you once I’ve replaced and tested it ;)

Hi!
I've got news for you. My mechanic is a bit busy and couldn't work on my car until next week, BUT I had a couple hours alone today so I decided to give it a try.


Well, the actuator was actually easier to replace than I thought, it only requires a bit of patience and focus. Having the new part on the side helps to understand how all the things are connected :)


It took about 45 minutes to do all the work (the door panel was already removed) and now it works just fine!


Thank you so much for all the help!