Disco 2 6 Chimes and a Crossed B

Ciao to all that read this!

In short I have a 2004 Disco 2, which currently state is

Central Locking not working on fob/key or internal button.
6 Chimes when ignition is turned on
B appears on the mileage display with a slash from top left to bottom right
Immobiliser light not illuminated
Engine does not turn over (no signal being sent to the starter)

What happened.

Drove her twice in the morning. On the third journey when she started the sun roof opened fully and would not close. Drove her ten minutes home. Took out the fuse for the sun roof and replaced. Closed the sunroof.

Any thoughts would be greatly appreciated, and any information on the 6 chimes. I have plugged her in and not getting any fault codes. I plan to check through all fuses and relays under the steering wheel to ensure they haven't come loose. It feels like it might be a bit more than a lose connection though.

Many thanks

Hi, that's bad news, it can have various symotoms but the fix is the same: https://www.landyzone.co.uk/land-rover/please-help-no-crank-no-start.296713/#post-3692921

Thank you for reply and link. It was not looking too good this morning going through the internal fuse box, until I started on the fuses in the engine bay. F26 was the Culprit. Multifunction Control Module 10a fuse had blown. Replaced and all related problems seemingly fixed. Fingers cross. Thanks again

F26 is for auxiliary circuits relay and should not cause that symptom but anyway i'm glad it was so easy cos usually it's more complicated