Central locking is working fine but the flashing is not happening. Any suggestions on what can be checked will be appreciated. TIA

Hello, can someone help me with this?

3 hours ago, Rameez said:

Hello, can someone help me with this?

Did they work before? This is a setting in the comfort module which is accessed via software like RossTech (VCDS).

Edited 3 June, 20242 yr by Dean

Yes they used to work before and I remember after replacing the hazard light switch they stopped working and do we have any module for that to check? @Dean

19 hours ago, Rameez said:

Yes they used to work before and I remember after replacing the hazard light switch they stopped working and do we have any module for that to check? @Dean

Just make sure that was an OEM replacement. 3rd party ones can be a hit or miss with them working. Is it genuine?

No it is from a brand called ERA

3 hours ago, Rameez said:

No it is from a brand called ERA

Do you still have the original to test?

I don’t think so it’s working.

I checked it with another working switch but no luck. Anything else i can check?

Indicators are not supposed to flash if one of the doors is not properly closed. You can check if your doors are properly closed before activating the locks, but you probably have done that already.

 

My best bet, at this point, is that you may have a problem with a door lock, and I would try to discard that. One of the microswitches from the door locks may not be working properly, thus not detecting that the door is closed and providing information for flashing the indicators.

 

Please confirm that there is no flashing, either when locking and unlocking. I had that symptom in the past, but with no flashing merely when locking.

 

This will give you some insight concerning the microswitch (there are three inside the door lock, and one on the outside, that is the one responsible for detecting door open/closed):

 

 

Overtime they fail. In one of my Octavias I had three failing door lock microswitches. I replaced three door locks as I didn't want to repair something that would eventually fail down the road for some other reason.

 

You can perform the following test, knowing that the doors are automatically closed after 30 seconds as a safety feature, if the central locking is unlocked and no door is opened:
a. After having the doors locked, activate the central locking in order to unlock the doors.
b. Open and close one of the doors and wait at least 30 seconds.
c. If there is a malfunction with the door lock microswitch, the central locking will be activated and the doors closed again, as the door opening won't be detected.
d. Repeat for other doors, one door at a time, including tail gate.

Yes this is what happening the central locking is auto closing in 30 secs and can you confirm if door locking module might have an issue?

It is normal operation for the doors to lock themselves after 30 seconds, after unlocking without opening a door. 

 

What is abnormal is if they lock after unlocking and opening a door. 

 

I take it what is happening in your case is the latter. 

Yea they are locking after opening the door as well.

Ok. If I were you, I wouldn't worry too much with the central locking at this point. It seems to be working correctly, and, based on my experience, it points towards the door opened/closed microswitch. 

 

Plus, if you replace the door lock mechanism that you find is inoperative (20 to 25€ each), instead of the microswitch (5€ each), you will also be installing new central locking elements. 

 

After replacing the defective one(s) I would re-evaluate. Naturally, you might want to try a different approach. 

 

IMO, the symptoms of a failing door locking mechanism are different. 

 

As an example, in my other Octavia, I do believe I have a driver's door locking mechanism malfunction. Randomly, the central locking won't open or close from the key fob. I found a turn around, and that is to actuate the driver's door lock fully to the right or to the left; it starts working again until next time, as it forces the inner components to move. 

 

This might be caused by a malfunctioning microswitch (different from the one I mentioned before) inside the door lock, a bad stepping motor, worned out plastic screw, or even a broken solder joint. 

 

I have already bought the door lock, and have been waiting for some free time to install it; for the prices I mentioned, it's pretty much useless to waste time fiddling around inside a 20+ year old mechanism, as I find my time to be very precious.