I'm curiuos regarding error codes from the transmission. Do I really need to go to the stealer to read these? My car has the "large" OBC as I do believe all 540s have.
I know that you should beable to use the "press accelerator five times"-method, but does this work on the trans as well?
Reading error codes for my trans (540iA -95) is about $50. Not too expensive, but quite costly for a job as simple as this.
Appreciate your help!