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B1849 Code – Climate Control Temperature Differential Circuit Failure

What are the Possible Causes of the Code B1849?
  • Faulty Climate Control Temperature Sensor
  • Climate Control Temperature Sensor harness is open or shorted
  • Climate Control Temperature Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)
  • 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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