B3656 Code – Electrical Power Take Off Control Switch Circuit High

What are the Possible Causes of the Code B3656?
  • Faulty Auxiliary Power Outlet (APO) Switch
  • Auxiliary Power Outlet (APO) Switch harness is open or shorted
  • Auxiliary Power Outlet (APO) Switch circuit poor electrical connection
  • Faulty Hybrid Control Module (HCM)
  • Faulty AWD 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.

Leave a Reply