Ignition cylinder lock problem solved...now doors won't stay locked - Toyota Nation Forum : Toyota Car and Truck Forums

Maim Menu · 06-14-2010, 06:34 PM

Hey people, been a while since I last posted here, still read the forum a lot though.

Well here is my problem, last wednesday cylinder lock jammed up on me, unable to do anything with no tools in handy I decide to tow the car. Garage calls me says everything should be good he took it out, lubed the crap out of it and put it back there now the key turns all the way and I can start my car and all is good.

Except now when I open the door, the car dings like if the key was in the ignition, but it's not, and if I lock the doors with the switch before getting out, they lock and immediately unlock.

If I lock the doors with my remote, same thing happens. I tried sitting in the car and using the remote, I noticed there was a couple of dings like when door is open, then lock/unlock.

I've searched around and read about some "Unlock Warning Switch" but I have no idea where it is.

I need some help with that one

chronoti · 06-14-2010, 06:37 PM

no idea about that switch but it is a system in the car where if it senses the key is in the ignition it will not lock the doors, so your gonna need to find out how that sensor in the cylinder works and then make sure it incorrectly

Maim Menu · 06-14-2010, 07:51 PM

Update : Even with the remote control, I press the button to lock the doors and the "opened door" indicator flashes in the dash. I do not think it is a remote issue, but the car does seem to think that the keys are in the ignition all the time.

It also does the same thing using the passenger side door lock switch : Lock then unlocks.

It is VERY annoying.

Maim Menu · 06-15-2010, 02:05 PM

Anybody? Anybody knows how the cylinder manages to know when the key is in the ignition?

I took it out but couldn't figure it out.

73sport · 06-15-2010, 02:36 PM

Quote:

Originally Posted by chronoti

no idea about that switch but it is a system in the car where if it senses the key is in the ignition it will not lock the doors, so your gonna need to find out how that sensor in the cylinder works and then make sure it incorrectly

^^
That's it right there!

Apparently the "key unlock warning switch" (part of ignition switch assembly) is depressed all the time. It seems you have an assembly error.

Eitherway, it needs to come apart again. If you can gain access to the 10 pin connector, pins 1 & 5 should be "open" but yours has continueity thus it the switch is triggered and it thinks the key is present when its not. Something is wrong with the mechanical fit of that 2 wire trip switch.

EDIT: Well unless somehow the "integration relay" stuck closed. Unlikley as it was fine before the repair.

Maim Menu · 06-15-2010, 04:11 PM

As of yet I haven't seen any 10 pin connector around the cylinder lock assembly.

All I did was just pull the trim off, unscrew the light bezel, press the pin and pull the cylinder out with the key in the acc position and it comes right out. I inspected it and wiggled around with it but couldn't see any moving part being stuck or anything.

I'm gonna pull it out again and go a little more in depth, including a good lock at the socket where the cylinder goes.

Thanks!

Maim Menu · 06-15-2010, 07:38 PM

More news. White little switch does have two tiny wires in it, I just can't figure out how this is supposed to work if there is nothing to trigger it, unless it's broken.

You Tube

71Corolla · 06-15-2010, 09:39 PM

I've never removed the ignition cylinder from these cars, but if it's like other Toyota's, there is a little plastic bead or pin thingy as part of the key detection switch. Yours looks like this is missing. Probably what happened is when the lock was pulled the first time, part of the switch fell out.

If you can just go to a wreckers and grab what you need. BTW, the video is very helpful, much easier than trying to describe things huh.

Maim Menu · 06-15-2010, 09:48 PM

Yes, I'd rather take some time to make a video and make it easier for everybody.

Good idea about the wrecker.

I'm thinking when my lock jammed up on me, it was that switch that fell in the cylinder and locked it up. They pulled it out and it fell completely out, then put it back together and everything seemed fine.

73sport · 06-16-2010, 10:56 AM

Quote:

Originally Posted by Maim Menu

Yes, I'd rather take some time to make a video and make it easier for everybody.

Good idea about the wrecker.

I'm thinking when my lock jammed up on me, it was that switch that fell in the cylinder and locked it up. They pulled it out and it fell completely out, then put it back together and everything seemed fine.

I can't watch the vid from here but it dawned on me on the way home yesterday that 1 of 2 things happened.
1) the nipple broke off the switch
2) there is a seperate pin/spacer/detent type thing that fell to the carpet or inside the dash when the i/s was pulled out the first time. It would be VERY SMALL and easy to misplace.

#1 is most likely.
Look at the bottom right corner of this. Is that it?

Alternate/OEM Part Number(s): 8445033020, 88922022, LS764

Maim Menu · 06-16-2010, 02:17 PM

Quote:

Originally Posted by 73sport

I can't watch the vid from here but it dawned on me on the way home yesterday that 1 of 2 things happened.
1) the nipple broke off the switch
2) there is a seperate pin/spacer/detent type thing that fell to the carpet or inside the dash when the i/s was pulled out the first time. It would be VERY SMALL and easy to misplace.

#1 is most likely.
Look at the bottom right corner of this. Is that it?

Alternate/OEM Part Number(s): 8445033020, 88922022, LS764

That really looks like that's what it is.

The bottom part of that white plastic thing (the part with the three holes) might've broke off because it really looks like that is what is going to peek into the cylinder and react to the key being pushed in and out of it.

The top part of it (Where the green wires go) look like it's still attached to my cylinder.

Take a look at my video when you can, I'm pretty damn sure that's the right part. I just don't remember the green wires, I do remember there were two tiny contacts inside it though.

Then again, it might not look exactly like that one, because at this point I assume that mine is broken.

Maim Menu · 12-18-2010, 11:24 AM

Quote:

Originally Posted by 73sport

I can't watch the vid from here but it dawned on me on the way home yesterday that 1 of 2 things happened.
1) the nipple broke off the switch
2) there is a seperate pin/spacer/detent type thing that fell to the carpet or inside the dash when the i/s was pulled out the first time. It would be VERY SMALL and easy to misplace.

#1 is most likely.
Look at the bottom right corner of this. Is that it?

Alternate/OEM Part Number(s): 8445033020, 88922022, LS764

Late update on this problem.

I finally got annoyed enough to take a moment and figure it out and you were right, there is a small, spring mounted, ball shaped nipple inside the switch and it broke out of mine.

I took the cylinder out of my father's '97 and I could trigger the bell with my finger my pushing it up.

Having another identical car in the family is always a great help in figuring out problems...