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B3140 Code – Driver Door Unlock Switch Circuit

What are the Possible Causes of the Code B3140?
  • Faulty Driver Door Unlock Switch
  • Driver Door Unlock Switch harness is open or shorted
  • Driver Door Unlock Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
  • 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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