2008 Fiat Ducato speedo not working

[Billogboy]

Hi I have a Fiat Ducato based motorhome and the speedo has stopped working.
The whole cluster started to go funny and we got it repaired (Cartronix) and everything was ok.
When I was taking it for it's MOT I noticed the speedo wasn't working so I returned it to Cartronix but they found nothing wrong.
Anyone have an idea where to start looking for the problem?

 

[Clivefog]

Did you take the cluster out, is there a speedo cable or is it all electric?

 

[GeoffnDee]

I think you will find that the speedo is controlled by the body computer module (BCM) which may need a reset and Google can bring up information about doing this which could be worth a try.

 

[Ivory55]

Just don’t drive faster then the car in front, haha

 

[Billogboy]

I think you will find that the speedo is controlled by the body computer module (BCM) which may need a reset and Google can bring up information about doing this which could be worth a try.

This makes a lot of sense as I have just renewed the battery. The cluster came back from the repairers, with them saying there's nothing wrong with it. Took her off the drive and the speedo now works.