U1066 Code – Loss Of Communication With Rear Integrated Module

What are the Possible Causes of the Code U1066?
  • Faulty Rear Integrated Module (RIM)
  • Rear Integrated Module harness is open or shorted
  • Rear Integrated Module 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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