Underseat connectors - heated seat and SRS issues

My drivers seat heater is not working and I have an SRS light, so I have been poking around under the drivers seat

SRS.
I have a B1008 error code, Open circuit in drivers seat airbag, Permenent.
I have tried replacing the airbag with a 2 ohm resistor and the light remained on. I also replaced the airbag with a used one of EBay (yes I know, but I didn't know about the 2 ohm resistor trick when I bought it) and the light remained on. So I am assuming that the fault is downstream, probably the Rotary Connector, but maybe something simple like an underseat sensor......?

Heated Seat.
Light illuminates on the switch, but no heat. Could be a duff element or module, or an underseat loose connection......?

Both of these led me to investigate under the seat, and I found two disconnected multiplugs and no obvious place for them to connect to. The first originates from under the carpet at the left rear of the seat. The cable has a large brown multiplug which is connected, a yellow multiplug which is connected and a small black multiplug with two pins with yellow insulation that is not connected.

The other disconnected line is a blue eight pin multiplug that comes from under the cubby and which has no other connectors.

Does anyone know what these connectors are and are they related to the heated seat and SRS issues?
Cheers

maybe if we could guess what vehicle it's about

Doh!
It's a 1999 Disco 2 ES with heated and powered seats.

Couldnt you take some pics about those unplugged connectors? ... anyway the airbag code is probably due to the rotary coupler cos there aren't sensors under the seat related to any airbag

for the seat heating the brown connector is important and the original elements are connected in series so if one is gone the other won't work either but the power seats have a heater module too.... measuremets are needed to see circuit continuity and feed path, eventually swap the heater modules between seats to rule it out

The horn, audio and cruise controls are all working well. Would they be affected if the rotary connector was faulty?
PSA photos of the disconnected plugs.

Every system has it's own circuit through the rotary coupler so it's possible that only one to not work, the two way black plug is for the seatbelt pretensioner switch which would not bring on the SRS but the seatbelt warning(unless it's not disabled like on most of them) i dont recognise the blue one exactly but seems like for the CD changer

OK, thanks. The CD changer is still there, but not in use so it sounds like I can ignore the blue one.
I would far rather the pretensioner was connected though, but cannot see a corresponding connection. Where should I be looking?

The pretensioner is connected with the yellow plug , that black one is as i said for the switch which monitors if the belt is connected or not and it's only for the seatbelt warning which is not part of the SRS protocol, it's for the instrument pack and it seems that it's connected only on LHD modells on the RHD schemes it's shown unconnected in the connector views

Perfect, thank you.