VW A4: Faulty Door Lock Module / Actuator
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- čas přidán 7. 12. 2012
- New Video with audio about the same problem:
• VW A4: Door Lock Actua...
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New video describing the same problem WITH audio!!!!! czcams.com/video/c625mPSUNqQ/video.html
few things to bear in mind. First thing when deciding to change the door lock module (DLM) after being sure that there is the problem. I'm talking here about B5- B5.5 models of passat. I think its the same is with audi a4. The locking system operates on very specific way. There is a thing called dead lock in DLM. What is it. When for example you go outside of car and lock the car with remote with only one press you will initiate dead lock from DLM triggered by the CCM. The dead lock itself features 2 key important facts beside obvious locking part and those are: first it triggers alarm and second you cannot open the door within the car via the indoor handle after lock (thats why its called dead lock). On the other hand you have normal lock. That one is also triggered via remote but only if you press the lock button two time in a row within 2 seconds. The difference is that way you don't have alarm triggered and guess what you can open the door within the car via the handle. The indoor switch for locking the doors is basically the same as that normal lock. The purpose is obvious (someone can exit the vehicle after the lock without alarm being triggered). So back to start of this comment. If you are changing the fault DLM lock be absolutely sure that you are getting the DLM with 5 micro switches in it otherwise it won have dead lock in it and you will be able only to lock the door, and after triggering normal lock without alarm that door won't stay locked and It will auto unlock. The reason for that are low cost aftermarket non original VW parts that cost almost 3 time cheaper and they DO NOT HAVE a 5 micro-switches inside the electronic part of DLM but only 3. Regarding the micro switches: 2 of them tells the switch to lock or unlock, other 2 switches checks weather the door is locked or unlocked (those are the one that are missing on aftermarket no original ones) and the last one is located on mechanical part of the DLM (that one checks whether the doors are opened or closed). So that's about it. If you have some tools there is nothing you cant change by yourself but if you are changing it on the rear doors be aware of the windows annoying circle pin that has to be removed in order to release the window.
+Krunokia Thanks for the info / tips!
Thankyou so much for helping me means a lot to me as I can't afford to pay someone, I will check all wiring behind door and rubber harness for breakage as advised.
Try to post replies under my replies... the conversation will be easier to follow... rather than having to scroll up or down to find each reply.
My Mk4 Ibiza does exactly this, any idea how to go about taking the door card off?
Hi thanks for replying back, it's a vw polo 2004 1.9 sdi, after replacing the drivers window the red LED immobiliser light has stopped flashing/blinking, it dose not come on at all, no light, plus there's no power in the drivers door lock the same door where the LED is not working, it dose not have a alarm on this model, only immobiliser so no alarm beeps. I will double check all the wiring again and get back to you if that's alright, many thanks.
Wow, thanks, i saw the video, i'm a little unsecure, i don't want to mess up anything on my car, but i'm goint to give it a try. If i can't fix it, then i'm going to an electrician to solve it. Great video, thanks for the answer. Take care!
Yeah, my Vag-Com is to limited to see what triggered the alarm I think but you may be right about the micro switches or it could be the other sensor that detects that the door is open or closed. I may try to get a new unit and see if that fixes the problems.
also another heads up, my door lights don't come on automatically, it's only after I cut the car off and on that they work
Change the microbutton on door lock module - The button is faulty and the ccm doesn't know that the door is open .
I have a vw passat 2002 and i have a remote key control but it dont work.. do i need to check for battery or can be a systetm fault.. cause when i press a button the red light switch on, on my key but dont do nothing.
+Denis Qallija czcams.com/video/6ODt94_d6Cw/video.html
Is there a fuse i could pull to temporarily fix this. Ive bee. Having this problem alot. In the middle of the night. The alarm goes off. Every hour
Disconnect the battery, then lock the car.
Your door lock is very silent, it's all original? The noise when I lock/unlock doors in my 2001 Golf mk4 is very loud. Do you have any suggestions to make it quieter? Thanks for the video.
Sergio Pereira The camera is not picking-up the sound very well... these door locks are somewhat noisy. I have been meaning to redo this video (with audio/commentary).
I have a 2011 basic Jetta, there's that red flshing light in the same place ( near the door locks) and I neither know the reason nor the solution.... I couldn't fugure out what you've done TAT
please help!
PrinceKassadSYR That's the alarm indicator... should be OFF when the vehicle is running and should be blinking when the vehicle is locked.
@@EXOVCDS mine is.nor blinking on passenger side, when vehicle is locked, what could be the problem?
@@oscarriva81 Could be a broken wire. I wouldn't worry about it as long as the alarm turns on when it should. Roll all windows down and lock the car. From the outside, reach inside and open one of the doors. Alarm should turn on. If yes, then that door is ok. Turn the alarm off and lock the car again. Do the same for all the other doors. If the alarm does not turn on when you open a door, then the door lock actuator is bad.
Hi Thomas. I've been reviewing your comments and I'm having a similar issue but a little different that I could use some help with. As of yesterday the buttons on my key fob stopped functioning completely, yet the fob battery isnt dead since the light still flickers when I press the fob buttons. When it was working the fob locked every door except the driver side.
+Shawn Miles Try re-syncing the remote to the car... what vehicle?
+Thomas EXOVCDS it's a 2002 jetta gli 2.0
+Shawn Miles If you have a scan tool with which you can "adapt" the remotes to the vehicle, adapt the remotes.
www.ross-tech.com/vag-com/cars/vw-remote-matching.html
If you do not, disconnect the battery, touch the cable clamps together for a few seconds (to drain any capacitive charge from the system)... then, reconnect the battery cables to the battery. Did that help? if not... find someone who can match the remotes with a scan tool.
Hi, I needed some
Help. I have a problem with my mk5 golf. Whenever I lock my car the alarm is triggered. It’s sometimes doesn’t happen at all and sometimes happens all day. The alarm is turned off by unlocking and then locking again, my alarm does not be triggered after this. Iv checked that all doors lock and unlock as they should, iv checked to see if each door is not locked when pressing the key to lock the doors. But everything works as it should. Any help would be appreciated. Thanks again
The central convenience module stores alarm trigger events... using a scan tool (not a generic obd scan tool) one can read what triggered the alarm. Once you know what triggered the alarm... you can look for the problem in that area.
I have the same problem. ONLY my door warning lights (red/white) doesn´t works fine..sometimes they turn on sometimes not.....it happen in all the 4 doors.....and all other functions (with alarm, dashboard infos in panel, locks..all of then are FINE...only the lights doesn´t work fine :(
My problem is in this door actuator/module??..or there is a relay that controls the lights of all 4 doors separatedly???
Hello ! I have a 2003 eurovan and the door lock keeps going up and down non stop. What seems to be my problem. Seems like the van is possessed
One of the door lock actuators is no good. Try to open form the other side... what happens? Have a look at this: czcams.com/video/SaROPoKlrXs/video.html
I have a 01 bora, so basicly it's the same car, i have central locking mechanism and alarm with remote.When and if i try to close the doors with the key, it only closes the driver side door, but not the others, but when i lock it with the alarm remote it locks all the doors without a problem. Another thing, the light in the door does not light up when i open the door, and neyther the roof lights, but when i open another door besides the driver door, all the lights light up, so they work fine. Could this module be the reason i have the problems? Thank you in advance for the reply, and hope you can help me out. Bye
Yes, the micro switch or solder joint that is supposed to recognize key turning / position is not working. Replace the module or inspect it for faulty components. Also check the wiring loom in the door jam for broken wires... Most likely though, it's the module. I have videos on how to remove them.
Hello again. :-) Back from work, i did it, i fixed the module. I couldn't actualy split the module in half as you did in your video, didn't want to force not to brake something in it, but i cleaned it out with contact spray, and now it works wonderfully, but my problem is i made a slight mistake. I din't knew that when you undo the screw that holds the lock cylinder, you only have to rotate the screw untill it stops, and i unscrewed it untill i got it out. When i wanted to mount the cilinder back on, the mounting clip fell off. My problem is i don't know how to put it back on cause it doesn't hold the cilinder in place and it keeps sliding out by itself when i open/close the door. Do you know how to put it back in it's original position? If you could help me that would be awsome. By the way, verry helpfull video, thank you for the effort.
DjTommy2008 Hi, you'll need to slide it back into place. Easier when the assembly is out the door. VW A4: Retaining Ring for Door Handle Key Cylinder
hi i took the driver door panel partly off to check faulty window but now the door will not lock with remote. other three doors ok. any advise many thanks
+Mun Tan Sorry.. I thought I replied yesterday. Is the window motor plugged in? The window motor is actually the Door Module... if it is not plugged in, the door actuator / lock will not do anything electrically.
+Thomas EXOVCDS you do a lot a good in the world man
i have a question... I unlocked the trunk tried to shut it but wouldn't latch also at that time the locks wouldn't work. so when i got home i replaced the central locking fuse, the key fob worked now the trunk will not unlock from the fob or the switch inside and also back right passenger lock not working any suggestions?
Broken wire(s) in the trunk harness that caused the fuse to blow and is preventing the trunk from open "electrically". Turning the key in the trunk cylinder should still open the trunk... provided the linkage & adjustment is good. The right rear door lock is a separate issue most likely. The lock modules are common failures with age.
It's weird they both went out at the same time :(..... So what do you think I need to do/replace?
+Janice Kisner Check for broken wire(s) in the trunk harness that caused the fuse to blow and is preventing the trunk from open "electrically". Turning the key in the trunk cylinder should still open the trunk... provided the linkage & adjustment is good. The right rear door lock is a separate issue "most likely". The lock modules are common failures with age. The locks have all the same power source... if the rest work, check the one that's not.
Awesome video sir. I have a problem with the door not working with the key fob. Also my window doesnt work. My controls for the open and close buttons doesnt either. My door light works, gas door button and trunk button works. I tried to replace the door lock mechanism with a new one but still doesnt work. What else can it be? Thank u
Richard Anguluan Sorry about the lack of audible commentary in the video... from my early days of youtube uploads. I'm waiting for a chance to re-record a case like this, so that I can talk about what is going on. Your best bet to solve what is going on, is to find a good wiring diagram and then trace all the components and find what they have in common... to find the fault / cause.
***** so problem could be the wiring harness? It would work sometimes then it wont. I thought the door lock mechanism was the problem but guess not. So even if the other controls work, the harness for the door lock module might be shot?
Richard Anguluan Don't know... what I meant was that with a wiring diagram, you can see all the components and how they tie to one another. It could be a bad splice / connection in a wiring harness, or it could be a bad connection at the driver door module (window regulator motor & door module are one and the same), or an issue with the comfort control module. etc. etc.
I had a car last week that would unlock the door with the remote, but would not lock with the remote... disconnected the battery cables, touched them together for a few seconds, reattached the cables to the battery... and all was fine again!
Sometimes there are weird electrical gremlins that cause weird things.
I have a Jetta the same way it does not understand the lights of the door or those of the rearview mirror any advice. I am from mexico
What year is your Jetta?
So my 99 jetta does that a lot like even if I put the key in it the alarm start and I have to unlock it to start and when I lock it only door that doesn't lock is the passanger driver side and how do I bypass the alarm
You can't... unless you do an immobilizer delete (requires software that can do so).
@@EXOVCDS ok thank you
Question for you. Ive read that the lock module has window microswitches as well. Do you know what they do? I had to change my window regulator and lost window function. Also lost lock function but playing with the connector on it fixed that. The door open function works 1 out of 1000 times so i know it has some issues.
Moving the wires on the back of the plug dont change anything. Moving the connector itself on the lock module will cause it to detect and not detect that the door is open.
Hoping this does fix the issue but was looking for your input as im sure you have dealt with alot of issues related to this.
The power window motor is the "door lock module & window module". The lock actuator is the door lock / latch.
The door lock actuator / door latch has switches that tell the comfort control module if the door is open / closed / locked or unlocked.
Using the key in the door handle, you can roll the windows up or down, by holding the key in the lock or unlock position for more than 2 seconds.
The comfort module receives this signal and tells the door lock module / window motor module to roll the window up or down.
If all you did was change the regulator... things "electrically" should not get affected / be the same as before the replacement.
The switches or solder joints in the door lock actuator fail with age and that can affect things. Door will not lock or unlock with remote or lock / unlock button inside of car. Dome light will not turn on when door is opened... alarm will not go on when door is opened using inside handle (when alarm is set).
If things are worse after changing the regulator... look for wiring issues or bad contacts. Or it could be that the old parts decided to let go and act-up more (solder joints in lock actuator).
Power window motors / door lock modules are a rare item to fail... unless you find water damage at the connector.
+Thomas EXOVCDS why do people say that the door latch has microswitches for window up and down? Or is that the part that rolls it up and down that your referring too? If that's all it is do you have any idea why I wouldn't have any roll up or down. Or even attempt. Everything else looks good. No corrosion in any connectors neither. Just strange it all worked until unplugged.
+Edward Sessum If the window switch inside the car does not do anything... hold the key in the lock or unlock position outside in the door handle.
This will verify if the comfort module receives a signal from the door and then triggers the window module.
If nothing happens, it could still be an issue with the window motor or wiring... it's just a quick check to see "if something happens" (window movement.
If all connectors are plugged in, all fuses are OK... my next step would be to attach a scan tool to the comfort module and then check if it receives a signal from the switches in the door and the door lock.
If the comfort module receives signals for opening or closing the winfow... then look for power & ground issues at the window motor h harness plug.
If none of the windows work... look for something they have in common. Fuses & comfort module. Comfort module should be OK if the remote is able to lock & unlock the car.
+Thomas EXOVCDS atleast it's an idea. Gotta wait for my new door latch to come in since I know mine has issues. Do you know any fuses to check that would only effect that door? Passenger side switch and the pass switch on the drivers side both work.
+Edward Sessum They all have the same fuse... if the other windows work, then it's not a fuse issue. Focus on the switches / wiring in the driver for.
Hi I have a problem with my car when I open the doors they open normally But when the doors are closed, the second passenger door is not locked
Can you help me, I don't know what the problem is
Probably the door lock actuator / module is bad.
Year, make, model?
Got one for you door light comes on but no windows or dash light or interior lights until you pull the trunk switch then it works perfect until you take the key out the little door light always works
Make a video... I need visual input for my brain to try and make sense of stuff.
Hi my car does the same thing. Did you find fix for this?? I would love to know how to fix this problem.
my car unlocks and opes the trunk with the beeper, but does not lock with the beeper. it locks all doors with the door switch. and it does the same sound and light problem as in the video. Can yoy help me on this?
+Lumeiry “LRod” Rodriguez Gonzalez What year model VW? Most likely a bad door lock actuator. Watch this: czcams.com/video/c625mPSUNqQ/video.html and this: czcams.com/video/IAfNc14qiKM/video.html
My vw polo small red blinking alarm/immobiliser light next to my locking rod will not flash/blink after I replaced a broken drivers side window, can anyone help please. Does anyone know how I can get VCDS please, free preferably thanks in advance and thanks for video.
Did you unplug it when you removed the door panel?
1999(pre-facelift) B5 Audi A4. The Locks don't actuate at all. Neither the key fob or the door lock button make the locks actuate. The alarm system will *beep* as if its armed but the locks will not lock(or unlock for that matter). The car will begin alarming if the doors are opened when I have attempted to lock the door. Any suggestions on how to fix it? Im fairly mechanically inclined and ive done a few motor swaps before. I can trace wiring if needed. thanks for any help you give me!I'll also add that my car has 230,000 miles and climbing. Its been a great car, but its showing its age haha
+99AudiMan09 A wiring diagram will tell you if the system is vacuum operated or if there are electric actuators at the doors. I'm about to start work... will try to send you a wiring diagram sometime today (after work at the latest).
10-4. I'll look through my service manual for it as well. I had just assumed that it was electronically actuated. The locks have been very "lazy" the past few years and finally decided to stop working a few months back. Thanks man!
+99AudiMan09 The system uses a vacuum pump... located in the right rear of the trunk: czcams.com/video/PORIbbkJO4g/video.html I'll send you a wiring diagram in a little bit (check your youtube messages / inbox).
interesting... I wonder if perhaps my vacuum hoses on the air pump have dry rotted over the years. ill check that out on my days off. I will say ive noticed my car having odd idle characteristics before, bouncing up and down about 150rpm. It could be a vacuum leak. thanks for the info!!!
+99AudiMan09 Air leaks for the central locking will NOT affect the engine, since the electric vacuum pump is it's own / separate system from the engine. If you do NOT hear any buzzing noise from the right rear of the vehicle when locking or unlocking, then the pump is not doing anything. An extended buzzing sound when locking or unlocking usually points to a vacuum leak in the system. You either have a blown fuse or a faulty vacuum pump.
My car locks perfectly but after some couple of hours it starts alarming..when i press the lock switch it signals that please lock the door although doors are locked perfectly....plz plz help
Sounds like a faulty door lock module... using a scan tool, you can "check" what triggered the alarm (door, hood, trunk etc). If it is always the same thing (door, trunk, hood etc), then start with that component. The alarm module will keep the last 4 alarm activations in memory.
@@EXOVCDS for using a scan tool which would could you use i use blue driver the bluetooth. My car is weird it acts up a day and now its not giving me problems idk. I tried all the doors no lights in the middle.
@@DIAMONDISKEY VCDS is the best for VW & Audi... but pricey. OBDEeleven is a cheaper option (used with a smartphone). Generic scan tools can not communicate with all modules in the vehicle. Door lock / latch status can be viewed in the "Central Convenience / Comfort Control Module".
Hi please i have a problem in golf 4 model 2001 the interior light does not off when i locked the car always on
I need to turn off all the interior light by hand
Can you help me?
Does the same thing happen when you use the passenger door?
If the door lock actuator is bad, the car thinks that the door is open and that's why the lights stay on. In which case, you will need to replace the door lock actuator / latch. You can use a scan tool to check if "door status" is open or closed.
@@EXOVCDS yes the same of passenger door
Also if i turn on the external light of car and i open the door the car do not give me alert sound also if let the key in the start button no sound alert
So please i need to ask you if i change the lock door of front left is it enough?
To have an on off internal light and alert sound of external light
Thank you in advance
@@aataccountingauditingtaxat4919 Yes, it could be that both door lock actuators are bad (car thinks that the doors are open and keeps the inside lights on). Using a scan tool, you can check "door status" (open / closed). Once you confirm that the door lock actuators are bad, you can buy & install them.
@@EXOVCDS hello dear,
Please i have another question ,
Today the battery of car does not work was dead and the same time the boot lock wont unlock please are they linked?
Please advice thank you
@@aataccountingauditingtaxat4919 You should still be able to open the boot with a dead battery... via the mechanical connection the key makes when turning the key. If the boot does not open when turning the key, then the lock linkage in the boot is disconnected or out of adjustment.
the micro switches go bad , the motor relocks the thinking no ones opened the door, people put old school door earthing switch on door frame then connect to one of the wires going to the door curtesy light... this fixes this issue , no need take off door locks trying fix a part that going suck up time and money
Buying a different / new car also works.
Hey, I have a 2001 VW Jetta and for the driver and passenger doors the car doesn't know if the doors are open or closed. I checked the solder points inside the module but they were all fine. Sometimes when I lock the car the cars alarm will go off 30 seconds later or so and stay on for 30 seconds. Any help would be nice. Thanks.
I have an 03 jetta wolfburg edition with the 1.8T driver and both passenger side doors lock but the driver side bck door does not lock. And my alarm will go off like yours. Dont know why ?
I have tourage the door sometimes fails to open
Maybe the latch / door actuator is faulty.
friend, what is the solution to the problem? my jetta has that problem.
Replace the door lock actuator / module:
czcams.com/video/IAfNc14qiKM/video.html
Hi Thomas hoping you can help. I only have a Manual key for my 2000 gold and I unlock the drivers door but if anyone opens the passenger door or boot before I put the key in the ignition it triggers the alarm. I've replaced the module on the drivers side and it hasn't helped. Could it be ye passenger side at fault. Thanks in advance.
William Ball New or used? How are you opening / unlocking the other doors? Still sounds like an issue with the lock actuator / module. If you have a scan tool (vag-com), you can view door actuator status to determine what is going on.
It was a new module. I unlock manually from the drivers door have tried turning the key twice til it beeps twice and the alarm still goes off when the passenger door is opened if the ignition hasn't been switched on before. Could it be the door wiring loom? Thanks
William Ball Weird... try a capacitive discharge. Disconnect the battery clamps and touch the cables / clamps together for a few seconds.
Reconnect the cables to the battery and see if the same thing happens.
My next step would be to check what the central convenience module sees when you lock / unlock the door... as well as if any fault codes are stored in the module.
Put a new door cable on. Door was opening, but now it stopped.
Year, make, model? Power door locks? Manual? When pulling from inside or outside? The more info I have, the better I can guess... my crystal ball is currently broken.
Thomas EXOVCDS 04 vw beetle. Automatic. I put door cables on the inside of the door panel. It won’t open from the inside or outside.
The cable on the inside door handle / lever clips into the back of the door panel. It could be that the cable has popped out of its seat (there are 2 little hooks that are at the end of the cable that are supposed to hold the cable in its place). If the door does not open from the outside, it could be that the pull cable for the outside door handle is in the wrong position. Does the lock / unlock rod by the window (where the LED is) go up & down as it should?
To reposition the outside door handle cable... pull the door handle away from the door. Using a skinny pick / screwdriver... push the black plastic puck (that sits in the door handle groove) towards the inside of the car. That should allow the lock mechanism to reset. You can see me detach the release cable puck in this video at 1:04
czcams.com/video/IAfNc14qiKM/video.html
Pull the handle away from the door and try to push that black puck in (with the key cylinder in place).
Similar issue. I press lock on my remote and all doors lock except driver door. My alarm can only be armed if i lock my door with the key, also if im in the car to lock the driver door I have to press the lock down instead of pushing the lock button. VW dealership says $300.00 to fix door lock issue, ouch!
The problem is usually with the module... but can sometimes be because of wiring issues in the door jam. Here's a DIY if you feel like trying to repair it yourself:
forums.vwvortex.com/showthread.php?1542461-MKIV-door-locks-explained-why-you-re-having-problems!!!-(
*****, good lookin out. ty
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Cheapest fix get a spare key made without eletronic fob. Who needs electric lock anyway?
The video has NOTHING to do with electronic FOB.
A fault with the "central locking" system is demonstrated here. The issue happens even when using the key in the door. I used the remote so I did not have to use the key on the outside of the door.
Me encanta cuando se hace un video explicativo que no explica nada,
I don't know if you can read or understand English... the video is a simple demonstration of a faulty module. The light in the door does not come on when the door is open. When the door is locked, the alarm does not come on when the door is opened. The warning buzzer does not come on when the headlights are on with the key removed and the door is open.
A slightly better video here.
czcams.com/video/x8MfSTSDxDo/video.html
New video describing the same problem WITH audio!!!!! czcams.com/video/c625mPSUNqQ/video.html
I have the same problem. ONLY my door warning lights (red/white) doesn´t works fine..sometimes they turn on sometimes not.....it happen in all the 4 doors.....and all other functions (with alarm, dashboard infos in panel, locks..all of then are FINE...only the lights doesn´t work fine :(
My problem is in this door actuator/module??..or there is a relay that controls the lights of all 4 doors separatedly???