B3887 Code – Trailer Left Turn Signal Circuit

What are the Possible Causes of the Code B3887?
  • Faulty Trailer Left Turn Signal
  • Trailer Left Turn Signal harness is open or shorted
  • Trailer Left Turn Signal circuit poor electrical connection
  • Faulty Trailer Lighting Control Module
  • 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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