P0513 OBD II Trouble Code Incorrect Immobilizer Key

Symptoms of P0513 OBD II Trouble Code

  • Engine no start condition
  • Flashing security light in instrument panel
  • Engine may start after delayed reset period
  • Service engine lamp illumination

Common Causes of P0513 OBD II Trouble Code

  • Defective microprocessor key or key fob
  • Faulty ignition cylinder
  • Bad PCM or a PCM programming error

Severity of P0513 OBD II Trouble Code

Since the presence of a code P0513 will likely be accompanied by a no-start condition, this should be treated as a severe condition.