P0385 OBD II Trouble Code Crankshaft Position Sensor B Circuit Malfunction Engine Light Code

Detailed information on troubleshooting and repairing a p0385 automotive trouble code which refers to a malfunction in the crankshaft position sensor. Also includes links to relevant forum topics on the code.

Symptoms of P0385 OBD II Trouble Code

  • Vehicle may not start (see above)
  • Vehicle may run rough or misfire
  • MIL illumination

Common Causes of P0385 OBD II Trouble Code

  • Damaged CKP sensor connector
  • Damaged reluctor ring (missing teeth or not turning due to sheared-off keyway)
  • Sensor output open
  • Sensor output shorted to ground
  • Sensor output shorted to voltage
  • Failed crank sensor
  • Failed PCM