Do you have cruise control and power windows? If so, are those also dead? You have to look for what all these things have in common because obviously so many different problems did not occur at once. Check the "IgnB" 40-amp maxi fuse in the under-hood fuse box. If it is okay, check for 12 volts on both test points on that fuse. If you have 12 volts on both sides, the ignition switch is the best suspect, especially if the heater fan is used on the highest speeds often.
Go to the fuse box inside and find fuses 6, 12, and / or 18. Check for 12 volts on them when the ignition switch is in the "run" position. If it's missing there, inspect the connector body and terminals for the ignition switch. If two or three terminals are black, and the connector body is melted, I will describe how to repair it.
Sunday, February 19th, 2017 AT 5:11 PM