Start with the harness that terminates into the two connectors at the main computer. The main computer sits on the drivers side inner fender. Strip back the tape about 8". There are about 100 wires that pass through this bundle. Tug a little on each wire to make sure it is securely in the terminal fitting and on the other end where it goes toward the engine. If its a solid wire it wont give but if its burned inside it will stretch the insulation where it is fried and and pull out. Once you find it you need to solder it back together. There may be more than one burnt wire. Good Luck.