B3921 Code – Group 2 Seat Motors Circuit Shorted

What are the Possible Causes of the Code B3921?
  • Faulty Seat, Lumbar, or Adjustable Pedal Motors
  • Seat, Lumbar, or Adjustable Pedal Motors harness is open or shorted
  • Seat, Lumbar, or Adjustable Pedal Motors 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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