BMW 750Li E66 DIFFICULT TO START AND WAIT TO START AFTER 4 HOURS APPROX

[KriptoKey]

Dear Friends.
I have a problem with a BMW 750Li E66 from 2005. The car starts from time to time. The client arrives at my workshop with a Crane and when scanning the vehicle shows a part of the network without communication between them EGS, DME, DSC and others as can be seen in the attached image.
At the time the engine starts the diagnosis is made and can be seen as the second attached image.
I have checked fuses, relays, wiring, but I still can't find anything related to the problem. When the communication to the DME and EGS disappears, the 12V power that leaves the IVM is lost. So far I am suspecting CAS1 where I find fault codes that say:
A0BD CAS: Wakeup cable output
A0C3 CAS: Wakeup ACC cable output


PM (Power Module)
A149 PM: Terminal input 15 wake up
I hope you help me with your comments to find a solution to this problem.
Thank you for helping

[achaccha]

Brother, it is a very complicated problem that you have, the car leaves you anywhere and you have to wait two or three hours to start the engine again. I've had a similar case, check the CAS well. you will find the problem with the wakeup line
Good luck

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