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U1550 Code – Body Control Module Lost Communication With Driver Seat Heating and Cooling Switch On LIN Bus

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What are the Possible Causes of the Code U1550?
  • Faulty Driver Seat Heating and Cooling Switch
    • Driver Seat Heating and Cooling Switch harness is open or shorted
  • Driver Seat Heating and Cooling Switch 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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