The engine wont even attempt to turn . i did a diagnosis and it said my ecu is disconnected but i connected all the wires and still nothing i even did the key reset and my alarm lock light stays on
I have a 2009 gmc yukon it wont start but i noticed my alarm light staying on so i tried to reset it by turning key on position for 10 minutes and i repeated this step 3 and 4 times still nothing i also had a diagnosis and it said my ecu is disconnected i really need help