- Faulty Rear Upper Duct Air Temperature Sensor Rear Upper Duct Air Temperature Sensor harness is open or shorted
- Rear Upper Duct Air 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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