Transmission fail safe..

[Themoog]

Agreed. £40 for the ABS module to be tested and since I had one fail on an E39 and a mini one I thought I would get it checked. If it’s not that then I’m not sure what to do.
I have seen videos on how to check the network with a multimeter via the diagnostic socket but I’m not an expert so we will see.

[Themoog]

Update.
The ECU testing company called today. The module was faulty but is beyond repair apparently as it has an internal hardware fault or something so they are sending it back. £19.
So I’ve had to source one off eBay and hope it’s ok. I did that with my E39 10 years ago and it fixed it so fingers crossed.