No ECU Found update
Posted: Mon Jul 09, 2012 1:27 pm
After talking to Mike he said that the problem could be caused by an after market radio harness which I had. He said to unplug the harness and try again. I also have an after market alarm which was easier to unplug. I unpluged it and much to my surprise it found the ECU. I loaded the tow tuning. Tomorrow we leave on a 1500 mile trip one way to Colorado. I will find out how this tune works. This is on a 2005 C5500 Duramax on a Jeyco Seneca motor home towing a four door Jeep.