Hello all, I have Skoda Octavia 2013 1.4 TSI which is driven 106k km. I'm facing Airbag error in the car. Tried it multiple times with the scanner but unable to erase the errors (20+ airbag related errors). What could be the possible cause of it? Will replacing the Airbag ECU with a working used one fix this issue? Anyone having any experience in this regard?

 

Regards.

Yellow connector under the driver or passenger seat.

 

Do you carry rear seat passengers that like to stretch their legs or children?

 

Its not about erasing errors or replacing the module its about finding and repairing the fault.

Yellow connectors under the front seats are fine. Got them checked. Yes, I have kids but they are really small, their legs don't touch the car floor.

I have got it checked and the electrician wasn't able to rectify the fault. All he mentioned was, the airbag wires inside the dashboard might need to be replaced along with the airbag ECU and since its a costly repair, I want to be absolute sure about it.

The only reason to replace the module is if airbags have been deployed (and it can be sent away to be reset if that is the case) or if there is no communication with it.

 

You say "airbag error" and "20+ airbag errors" was this a dashboard warning or a fault code?

 

A proper diagnostics tool like VCDS would give details like drivers seat thorax airbag open circuit, a garage saying wires and modules might need to be replaced are beyond their level of competence and probably lack the required diagnostic kit.

The car had some fire incident inside the vehicle due to which complete interior was redone, may be that's the cause of this issue as well.

20+ fault codes, all related to airbags (all of them). Yes, it did give all those details, some passive and some active. Now, I have got it diagnosed by an experienced engineer and he said that control unit needs to be replaced and recoded.

All I want to know now is, how can I find the right Airbag control unit according to the OEM?

On 09/01/2025 at 14:32, tlashaz95 said:

The car had some fire incident inside the vehicle due to which complete interior was redone, may be that's the cause of this issue as well.

20+ fault codes, all related to airbags (all of them). Yes, it did give all those details, some passive and some active. Now, I have got it diagnosed by an experienced engineer and he said that control unit needs to be replaced and recoded.

All I want to know now is, how can I find the right Airbag control unit according to the OEM?

The original airbag ecu will have a part number/serial number on it. You could try a second hand one with the same numbers if you can find one. It might work. Replaced a complete ECU on an old toyota and got away with it.

If there was a fire it could be cable damage but it might be worth checking and cleaning airbag ecu contacts. Be careful you don't set any off. There will be a way of draining voltage/charge in system of  before removing anything.

Edited 11 January, 20251 yr by Alasdair1
added something

I've had a similar issue with my 1.6 occy TDI, passenger airbag front, kept saying it was the igniter, ground to earth.  Checked everything, replacing airbag, fuses and igniter wiring.  Code would not go away and and was at my wits end.  I'd read that someone had replaced their airbag ECU.  I replaced mine with one from a s/h car identical to mine which had no errors and after clearing the fault, it went away!  (fingers crossed)  This might be handy for anyone who's been experiencing issues with their airbag error.  You'd need to get one from an identical car that has not been in a prang, not easy!

Ultimately, replacing the airbag ECU worked for me as well. Though only the dealership can recode the used airbag, normal electricians don't have this authority.