Quick intro. I am helping a friend who was handed a project and I’m at the point I feel it’s a bad ecu.
I have power to everything in the car except when I turn the key to acc and on. Nothing changes. No instrument movement no information from the ecu. Lights dings etc are present when I put the key in and the doors are open. Power has been traced and grounds have been checked. I have power on 2 pins at the ecu and the grounds are good. There is just no communication. Anyone like to concur or offer up another idea before I pull the ecu?