Going through an ecm nightmare.......
ECM got fried and local shop tried to repair it by swapping a chip and forgot what way it goes on the circuit board.
Now we need a picture of the circuit board or wiring diagram.

It would be of huge help if somebody has that.

thanks much
Max

2011 Cayenne S

 

Can't help with a picture, but if it's an identifiable chip then you should be able to look up the pinouts for it and then compare those against the traces on the circuit board. Looking for positive, ground or bus connections are obvious indicators.

 

I have kind of similar situation. My screen is not working and somebody says that I need to change the system totally, it is super expensive and I think that this guys wants to make more money. My brother says that I just need to find someone who will fix or change the circuit board. The screen is not turning on, but the car is ok and the radio works well. I searched for a few guides for understanding circuit boards and I decided to check it by myself. I figured something out but I am not skilled enough. So I would like to know if you found any videos or more info about it, I really want to do it by myself.