For the steering angle sensor, it will need to be calibrated and the system reset. If it is off it can turn on the traction control light as it will disable the system due to the error.
The 2 volt drop on the fogs shows you have a problem, Probably corrosion in the system either at a connector or the wires themselves. The issue isn't so much voltage as current. That is why a meter works but using a test light with a higher load works better. To explain it, think about what the wire does, a single strand of very light wire will show correct voltage, but that single strand cannot carry the amount of amperage needed to light the lights. So they wind a few strands together to increase the amount of current the wire can carry to light up the lights. In your case the wires cannot carry that amount and you get no lights, plus as there is an issue it also is blowing the fuses. I would trace the fog light wires back, you need to look for damage, rust or other reason why the wires cannot carry the proper current. It's one of the reasons I try to use a test light in situations like this, the loading makes a difference, in your case the fog lights are the test lights. As you are going to school for this you might want to ask about voltage drop and what it means.
Wednesday, January 13th, 2021 AT 10:02 PM