B3933 Code – Air Conditioning Evaporator Temperature Sensor Circuit

What are the Possible Causes of the Code B3933?
  • Faulty Air Conditioning Evaporator Temperature Sensor
  • Air Conditioning Evaporator Temperature Sensor harness is open or shorted
  • Air Conditioning Evaporator Temperature Sensor circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
  • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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