U1331 Code – Software Incompatibility with Body Control Module

What are the Possible Causes of the Code U1331?
  • Faulty Main Body ECU (Multiplex Network Body ECU)
  • Faulty Blind Spot Monitor Sensor Left
  • Faulty Blind Spot Monitor Sensor Right
  • 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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