Agrampp

Hi yall. I have an 05 CDI. It will randomly not start and show a malfunction of ESP error, visit workshop. Car will not attempt to crank. I have several codes in various module for CAN issues from the EIS however when you hook a car up to it with jumper cables, something powers up correctly and the car will start fine. Only a running car, no jump packs.

Front left SAM makes a little buzzing sound when the thing fails to start. I've checked the relay 15 and it clicks on during a failed attempt.

Any suggestions?
This thing has 340k