BMW E60 DONT CRANK DTC CAS POWER SUPPLY ERROR

[motorsport]

Hello have bmw E60 car dont crank and have dtc in cas modul cas terminal 30E/30L power supply
if some one can know what need fix to solve
Thanks

[cbp]

year of the car? engine type? and what is the DTC number...I guess you read the DTC from the CAS right? is there any other DTC from other modules from that CAN BUS ( DDME, GWS, and so on?)

[leandroks]

Line 30+ is linked to a master fuse, have a look on the fuse box, sure u ve got a missing feed on the cas...

[motorsport]

Car is from 2004 model with key metalik dt number A0B2 error only in cas modul
where is master fuse on rear or car?

[cbp]

279742279743
I assume its a 525i...I hope this helps.