Hi, can someone please help me!!! My engine light came on yesterday and then went off. The car was still drivable but I noticed the auto start stop feature wasn’t working when I stopped, the car stayed on. This morning the car wouldn’t crank. I have called the dealer and they don’t know what’s going on. The code gave a message saying repair wiring at battery tray. Power Train System, dc/dc converter actuator voltage performance 1. Can someone please help me or tell me what this is so I can try and get my vehicle fixed. Thank you.

 

Try this link. It's still possible that your MAP is bad or has wiring that might need to be checked out, but i doubt that.

https://www.diagnostictrouble.com/obdii-code/p3055