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B0423 Code – Right Temperature Control Feedback Circuit

What are the Possible Causes of the Code B0423?
  • Faulty Passenger Air Temperature Actuator
  • Passenger Air Temperature Actuator harness is open or shorted
  • Passenger Air Temperature Actuator circuit poor electrical connection
  • 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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