Technical Ducato Air bag fault code B010049

[John greenfield]

Hi all

I have an air bag warning light and fault code B010049 which is ECU failure. It seems this is not uncommon on Ducato motorhomes which is what I have. Other posts have suggested the ECU can be repaired by sending it off to a specialist company so I would like recommendations as to companies to use. Can someone also tell me where to find the ECU on the vehicle and how to recognise it so I can remove it to send off.

Thanks

 

[HughJampton]

I'm touring at the moment, so restricted on how much detail I can post.

Carl at Northernautotech (Google) seems to have better feedback than Crashdata.

Mine was done there over 18 months ago, and has been ok since.

It's not a particularly difficult job if the repair goes ok (no recoding to the vehicle required).

You need to ensure the battery is disconnected correctly before removal (lock with remote, wait inside for 5 minutes to let systems quiesce, then remove the earth without reopening the doors). With a motorhome it's probably sensible to isolate solar if that feeds the vehicle battery, just in case.

The ECU is in the centre of the cab floor under the battery cover. The thread here has pictures:

Airbag ECU Fault | FIAT Ducato

Hi All, I have a recurring fault code on my airbag ECU: B0102-00 Connection to ECU Grounding Fault. I have cleared it previously and it has reappeared, but currently cleared and fingers crossed. It doesnt seem to be a common fault: anyone any experience? Crashdata are telling me it needs a...

www.fiatforum.com

It also details extra earthing, which, since it is detailed on a Peugeot TSB, is probably a sensible step on reinstallation.

If you reconnect the battery in the interim, ensure you go through the same isolation steps before reinstalling.

 

[John greenfield]

I have decided to buy a new sensor rather than have mine repaired as there seems to be many bad stories about repaired ones failing again. I knoe fitting a new one will require recoding but I have found a local company who can do this.
My airbag sensor has a part number 01375110080 but most of the ones I see for sale have a different part number , 00046858203. Is this a new version or a different part? If it is a new version will there be problems recoding it from my old one?

 

[jackwhoo]

Fits Peugeot Boxer Citroen Relay Fiat Ducato Airbag ECU Module 14-On OE

Air Bag Control Unit 2-3-4 Loop Genuine Fiat OE Part. Fits: Fiat Ducato, Peugeot Boxer and Citroen Relay 2014 Onwards. Please Be Aware That There are Multiple Options On These Vehicles. Please Check Part Numbers In the List Are The same As Yours Or Contact Us First Before Purchase If Unsure, As...

coastalmotorhomes.co.uk

If you click on on the this link and scroll down you will see a list of comparable part numbers , I think the part number you want is listed.

 

[jackwhoo]

Alfa Romeo Parts | Fiat Parts | Italian Car Spares

www.shop4parts.co.uk

Ring them with your part number don't just rely on their website.

Discount for forum member who donate.

 

[jackwhoo]

Coastal motor homes also good, know their stuff etc

 

[HughJampton]

Coastal motor homes also good, know their stuff etc

I was going to suggest Coastal for a cross reference of part numbers. They are pretty reliable.
The original parts have been superceded so a compatible new one is the best option if you don't favour repair.
The old ECU plays no part in 'coding' the new one to the vehicle
I decided to go for repair with a fallback option of a new one I could align with MES, so far I haven't had to do the latter. 18+ months and counting.