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Failing lock cylinder? And bad Actuator?

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Old 01-21-2021, 11:01 AM
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Default Failing lock cylinder? And bad Actuator?

I have searched on this but havent found a definitive answer so looking to see if anyone has further ideas.

I understand the tumblers in the door locks are a bit fragile and all 3 of the locks are going/gone. Using the key fob has never worked to unlock the doors but it will lock the doors IF the drivers side is manually pushed down ie it wont lock the drivers side with the fob. Also the key does go fully in to the drivers side lock but doesnt turn. This morning none of the locks would open so used the fob to open the back window and had to crawl in to unlock the drivers side - ugg. Not something i want to have to do every time i need to unlock the car

When i press the lock/unlock button on the key fob i can hear a clicking near the front of the door and a fainter click right by the lock. This leads me to believe that the actuator is getting power but not working.

So I am thinking to replace the cylinder lock on the passenger side (either with a new cylinder so i would have to use a separate key to get in or just hack the cylinder and remove the sticking baffles so i can stick with the original key) AND replace the drivers side actuator to see if that allows full locking/unlocking of all the door (or at least the drivers side)

Any ideas?

Thanks!
Old 01-21-2021, 11:33 AM
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Default Re: Failing lock cylinder? And bad Actuator?

Yes, the door lock actuators go bad. They will click but not actually move or not move far enough to lock/unlock the doors. It is a HUGE pain to get to these parts as they are the first part installed into the door assembly. Expect at least an hour per door.

You can get replacement wafers for the lock cylinders. There is a kit out there for this or if you have a cool Honda parts department they will hook you up. The wafers are marked so if you pull the cylinder apart and get the numbers off the damaged parts it is fairly easy to get replacements. I found in my cylinders just 1 wafer would be damaged. Easy enough to just exclude that wafer from the cylinder if you don't mind losing one pin worth of security. I believe there are 8 or 10 slots for the wafers but they are not all populated but they could be if you wanted to go the extra mile.
Old 01-21-2021, 11:56 AM
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Default Re: Failing lock cylinder? And bad Actuator?

Thanks for the response! I have the time to work on it but are there any special tools required? I will see if there is a youtube video on it. Is the cylinder replacement just as difficult? I presume the actuator is located close to it. Oh and I dont have a garage so kind of tough working outside this time of year!

I would likely try and just remove any bad wafers (i read people have used sandpaper to file them smoother) as security is not that big a concern; just trying to keep it alive till my son gets a job!!!

Thanks again
Old 01-21-2021, 05:06 PM
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Default Re: Failing lock cylinder? And bad Actuator?

Picks, mirrors, flashlight, 10mm socket, trim tool, and a #2 and #3 phillips. No special tools really.

The door latch assembly comes out and the actuator is replaced on the bench. Key cylinder is clipped in place, I don't recall it being super difficult to remove and install. Once out you can take the cylinder apart and replace or remove the tumblers, wafers, pins, whatever you want tocall them. Pro tip when you pull the core out of the cylinder the pins are loaded on both sides. Be ready to capture them.

Old 01-21-2021, 05:28 PM
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Default Re: Failing lock cylinder? And bad Actuator?

Originally Posted by Ryanthegreat1
Picks, mirrors, flashlight, 10mm socket, trim tool, and a #2 and #3 phillips. No special tools really.

The door latch assembly comes out and the actuator is replaced on the bench. Key cylinder is clipped in place, I don't recall it being super difficult to remove and install. Once out you can take the cylinder apart and replace or remove the tumblers, wafers, pins, whatever you want tocall them. Pro tip when you pull the core out of the cylinder the pins are loaded on both sides. Be ready to capture them.
Awesome, thanks!
Old 01-21-2021, 10:49 PM
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Default Re: Failing lock cylinder? And bad Actuator?

This is a guy rekeying a honda lock


And this lockpick here, the lock picking lawyer, is super entertaining

Old 01-21-2021, 10:51 PM
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Default Re: Failing lock cylinder? And bad Actuator?

I have the 06 CRV manual. Do you need some instructions. I can post pages for you . Let me know
Old 01-22-2021, 06:19 AM
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Default Re: Failing lock cylinder? And bad Actuator?

The LPL video is what the CR-V has with the split wafer design.
Old 01-23-2021, 02:22 PM
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Default Re: Failing lock cylinder? And bad Actuator?

Thanks guys, much appreciated.

I have found a few videos but Davey7847 if you have some would love to see them

Cheers
Old 01-23-2021, 09:09 PM
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Default Re: Failing lock cylinder? And bad Actuator?

Is the the second gen 02 to 06
Old 01-23-2021, 09:21 PM
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Default Re: Failing lock cylinder? And bad Actuator?

So I just re-read your original post there. So the way that locking system works is the driver's door lock actuator controls pretty much everything. When the actuator runs through its stroke what ends up happening is it also hits a set of contacts where it sends a signal to the multiplex to let it know if door is locked/being unlocked or vise versa....in other words is the door lock button in the up or the down position or has it been moved up or down. I'm taking them right apart to the brushes in the little electric motor. It's basically a little electric motor that you'd find any kids racing car nothing really complicated. The motor has a little worm gear on the end of it that moves a set of gears and one of them is got the contacts on its face that runs across some wipers to make signals to the multiplex (And what ended up happening with the one I disassembled was that the little pieces of carbon that are on the ends of spring steel that are your brushes we're pretty much worn right down to nothing and so there was almost no contact with a commutator so the motor just had very little strength. As an FYI you pretty much can't rebuild these cuz they're sonically welded little housings but they're very very cheap to buy on Amazon ) So That's why if you push down on the door lock from the inside of the car at locks all the other doors. That being said if that actuator is failing then pretty much the whole rest of the system won't work properly. I have replaced door actuators on the driver's door and I never got around to replacing my lock cylinder because I had the same problem with my O2, but I sprayed it with some lube a few times and it would work so I never bothered taking it out and having it repaired and i sold the car . What I was going to do was remove the lock cylinder and just give it to the guy and get him just to rebuild it for me cuz I just don't have the patience. Taking the lock actuator out is a little tricky because it's actually in the door latch. There is a step-by-step procedure for this in the manual and I can certainly send that to you if you would like to see how to take it out. It's a little bit of a blind operation but it's totally doable. Just confirm with me what model you're dealing with and I'll get you the info. If you have access to an impact screwdriver it's very handy to because the screws that are holding that latch in are usually very tight and a little bit challenging to try to take out with just a screwdriver in your hand but not always.
Old 01-24-2021, 01:06 PM
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Default Re: Failing lock cylinder? And bad Actuator?

I think I will attempt to replace the actuator because as you say, it controls the other doors. If i could get the key fob system to work then I would be less concerned with the tumbler. However 1 video i saw showed that the tumbler was held in with a locking pin rather than screws? I looked in the manual but couldnt find any info on this so if you have something would love to see it - thanks!

My biggest issue right now is finding some place warm enough to tackle this so it may have to wait till the spring
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