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U1891 Code – Hybrid Control Module Lost Communication With Instrument Panel Cluster

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What are the Possible Causes of the Code U1891?
  • Faulty Instrument Panel Cluster (IPC)
    • Instrument Panel Cluster harness is open or shorted
  • Instrument Panel Cluster circuit poor electrical connection
  • Faulty Hybrid Control Module (HCM)

    • 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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