Hi everyone

I´m a new RR 5.0sc 2010 owner and I need a bit advice.

Currently, the car is needing supercharger snout change as it's quite noisy, anyway, that's not what I need advice for. The car waited outside of the garage for about 2 weeks and now it won't start, actually I cannot even get ignition on.
By pressing the start button (keyless) nothing happens on the instrument cluster, it's just staying black. Both fobs are currently opening and closing locks without issues and I've already changed batteries on both as well as the car.

I do have sdd and it's showing following persistent faults:
B100D-67 Column lock authorisation
B1009-63 Ignition authorisation
U0155-00 Lost communication with instrument cluster control module

When I run "verify keys", it's seeing both keys but failed to verify them.
I have also Topix account and I found that LTB00492V4 is talking about a quite similar issue that I have but it's saying that I should perform "Configure new modules - Body control module" application. And that is what I need advice for, also because I don't know if I have correct calibration files and if that is even correct approach to this issue or is there some other things I should do first?
Just to clarify, the car was working and starting fine before this.

It sounds like the KVM has either corrupted or prevented a theft. Are there any signs of entry attempts? 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

I think there’s a manual way to start the car, have you checked the handbook? 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

I cannot see any obvious sign of attempted theft.
Handbook doesn't say anything about manual starting or at least I've not found anything.

I did take a quick look at the previous session on sdd and I see there's an option to "recover programmed keys" which I plan to try tomorrow.
But if that doesn't help I'm not sure what I should try after that.

tried charging the battery ?

Have you tried these? This is from my 2012 manual, the petrol procedure is interesting.
 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Yes, and swapped to a new one and tried with power source.
Sdd was showing voltage ~12,7 and with booster it was around 16v.

@Brit Plumber
I tried to put fob on that spot but it didn't help, still couldn't turn ignition on. Radio is only thing I can turn on, everything else is staying without power.

Ok I’d go back to basics and check the fuses and relays in the main fuse box if you haven’t already. The fact that the BCM is reporting sounds like it’s not but it’s worth a check. 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

DTCs

B100D-67 - Medium speed CAN bus short to ground, short to power, open circuit, high resistance.

B1009-63 - dame as above with additional Instrument cluster failure, CJB failure, battery voltage to low.

U0155-00 - instrument cluster power or ground circuit open circuit, high resistance. High speed CAN bus circuit short to ground, short to power, open circuit, high resistance. Instrument cluster internal failure.

It does appear that no power would cause these issues. 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Check Link 17E and 15E in the engine junction box. 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Also 18E in engine box and fuse 40P in the CJB (for MS Can). 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Was a bit busy at work so didn't have time to visit car until today.
I checked fuses, actually all of them with a tester, everything good.

Still can't get ignition on. Cleared fault codes and U0155-00 is only one present. However, it's still failing to verify keys when tested with SDD.

I'm not really sure what to do next. Is it KVM that has failed or is it BCM which gave the original "ignition authorisation" fault code or something else?
As far as I know, KVM is programmable only once so I have to buy new if that's it. I tried to program it as a new and existing module but failed at both. It's giving me the following message: the keyless vehicle fitted to the vehicle is incorrect, please check part number as it should be either BJ32 or DPLA.

Any ideas?

Did you get to the bottom of this fault? I have one that the ignition wont turn on after the vehicle is warm