So I fixed my defroster flap and now I have a new issue. NO HEAT. I ordered the DCDC fuses in case those were bad and almost bought a used PTC. I hooked up scanmytesla and am observing some interesting behavior with the HEATER R sensor and PTC air heater. HEATER R shows 415 degrees F and PTC air heater is at 0%. Temp is set at to HI. HEATER R will show 55 degrees for about 20 seconds and PTC air heater will jump to 73%. Then HEATER R will indicate 415 degrees F and PTC air heater will drop to 0% for 80 seconds. So I'm guessing I have an erroneous HEATER R probe. Problem is I don't know the location pf the sensor. I can feel the air get warm on the passenger side so I believe the PTC is working. I pulled the connection from the Floor vent sensor and it showed 5 degrees. I then pulled the connection to the upper sensor and Mid vent R went to 5 degrees. Is there a temp sensor adjacent to the PTC air flow? Anyone else see this kind of behavior?
2013 Model S, 112,000 miles
2013 Model S, 112,000 miles