B2039 Code – Left Power Sliding Door Switch Open/Close Signal Input Error

What are the Possible Causes of the Code B2039?
  • Faulty Left Power Sliding Door Switch
  • Left Power Sliding Door Switch harness is open or shorted
  • Left Power Sliding Door Switch circuit poor electrical connection
  • Faulty Left Power Sliding Door Control Unit
  • 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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