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Old 11-17-2008, 10:41 AM   #1 (permalink)
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Hi all.

I have an infuriating problem

I noticed that the passenger rear door was not locking so I fiddled with the inside lock switch. When locking the car the lock switch would attempt to lock but wouldn't, leaving the door unlocked. After a bit of fiddling with the lock switch the door eventually locked.

However, the bloody thing now won't unlock. The lock switch can be moved from lock to unlock but the door remains locked.

I have managed to get the door trim off (not easy with the door locked shut, and also moved the inner door panel so I can access the cables going to the lock unit but I cannot actually get to the latch mechanism and the actuator.

Does anyone know if there is a way to unlatch or unlock the door so I can open it to replace the lock unit??

Please help as I would rather do this myself instead of paying crazy dealer prices to do something that may be simple.
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Old 11-17-2008, 10:21 PM   #2 (permalink)
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i know this sounds stupid but have you checked if the child lock is on?

EDIT: When working on the magna VR-X, I noticed that there is a way to trip the "secure" lock when fiddling with it. I'll ask my dad how we managed to get it unlocked again. Basically the same situation as you.
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Old 11-18-2008, 12:08 AM   #3 (permalink)
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pull





































hard
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Old 11-19-2008, 11:29 AM   #4 (permalink)
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QUOTE (milnei @ Nov 17 2008, 10:41 AM)
Quote:
Hi all.

I have an infuriating problem

I noticed that the passenger rear door was not locking so I fiddled with the inside lock switch. When locking the car the lock switch would attempt to lock but wouldn't, leaving the door unlocked. After a bit of fiddling with the lock switch the door eventually locked.

However, the bloody thing now won't unlock. The lock switch can be moved from lock to unlock but the door remains locked.

I have managed to get the door trim off (not easy with the door locked shut, and also moved the inner door panel so I can access the cables going to the lock unit but I cannot actually get to the latch mechanism and the actuator.

Does anyone know if there is a way to unlatch or unlock the door so I can open it to replace the lock unit??

Please help as I would rather do this myself instead of paying crazy dealer prices to do something that may be simple.[/b]
I had this same thing happen to me about a month ago. My huisband's mom was in the backseat trying to get out and couldn't unlock the door. I know on the MS6 there is a little white tab/lever in the side of the door jamb that you flick up or down (child locks). Try that, it worked for me.
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Old 11-21-2008, 10:39 AM   #5 (permalink)
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if all else fails, roll down the window and you can use a slimjim or something similar to pop the door open, then you can find out if a bar or clip came loose or broke on the inside of the door.
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Old 11-21-2008, 11:16 AM   #6 (permalink)
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if the child lock is on in most cases but the door is unlocked, you can still open the door from outside because I got locked into the back of an SRT4 once and had to roll down the window and reach out to open the door
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Old 02-19-2009, 04:33 AM   #7 (permalink)
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Late Update.

Thanks for your posts, however I eventially found the problem, the door latch mechanism had fallen apart!

I was stumped after trying everything. I took the plunge and stripped down the other rear door so I could understand how the latch worked, and after studying the good latch and comparing it to what I could see of stuck latch I realised that the latch housing had popped open slightly, causing the internals to fall out, eeeek.

From the good latch I found the last leaver in the mechanism that I could pull to pop the latch, and this was accessable through the hole in the door where the bump rubber is located, great.

But because the broken latch door was closed I couldn't get to the bump rubber or the hole so my only option was to drill through the car body (around a rear passengers shoulder area) first to get to the bump rubber, then pull the rubber out of the way, and then get a wire with a hooked end in through the holes and hopefully get the correct leaver and pull....

I tell you, when that latch popped, it was better than sex.......!

When I got the door open and took out the busted latch mechanism I managed to repare it, and secure it so the same thing wouldn't happen again. I also realised why it had failed. Shortly after buying the car I noticed that one of the three screws securing the latch into the door was missing. I found a replacement countersunk screw but it was slightly longer than the others. I fitted the screw, checked it was Ok and it seemed to be but I guess it wasn't as one day the screw stopped the mechanism from working properly and that is what caused the mechanism to split open.

Anyway I put it all back together (after shortening the replacement screw) and had the perfect sized black grommet to fill the hole in the body (car is black so you can hardly notice it), and everything was sorted.
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Old 02-14-2011, 01:42 AM   #8 (permalink)
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Question

I know this is really old, but I am having the same issue. I cannot find the rubber bump guard you are talking about. I have removed the interior panel, and the other plastic panel (what PAIN to get off!!!) I cannot get the latch to unlatch! Can you describe in more detail how you got the 3rd latch released? Thanks!
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Old 08-27-2012, 08:55 AM   #9 (permalink)
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Bumping this thread once more.

Has anyone found out how to unlock rear door? I also removed the interior panel and plastic panel but still can't find how to unlock it. I really don't want to drill through the car body as milnei did.
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Old 08-27-2012, 10:57 AM   #10 (permalink)
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Quote:
Originally Posted by Mazda4Ever View Post
if the child lock is on in most cases but the door is unlocked, you can still open the door from outside because I got locked into the back of an SRT4 once and had to roll down the window and reach out to open the door
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