B2920 Code – Auxiliary Mode Door Feedback Circuit Open/Shorted

What are the Possible Causes of the Code B2920?
  • Faulty Auxiliary Temperature Mode Door Actuator
  • Auxiliary Temperature Mode Door Actuator harness is open or shorted
  • Auxiliary Temperature Mode Door Actuator circuit poor electrical connection
  • Faulty Smart Junction Box (SJB)
  • 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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