Yes I tried with engine running. Same resultCan you read the vehicle information after you select Benz ?
Have you tried scanning any other vehicle with the Creader scanner you have ?
Have you tried scanning with the Engine started ?
I believe you need to sort the scanner issue out first. You should be able to access the ECU first and any other module after that. You said you cleared the Airbag codes and they came back ? How did you do that ? Or did I misunderstand ?
Tried on Toyota Prius and was able to read sea faults (none) but when I tried another function on the Toyota. I got the ECU communication error. Maybe it’s the scanner. My son has 2003 ml so I’ll try it on that one this weekend. Do you think the airbag faults to ground and to positive could be clock spring or airbag. Is there a way to test airbag without activating it and creating more problems?