P0199 OBD II Trouble Code Engine Oil Temperature Sensor Intermittent

How to diagnose, repair, as well as symptoms and causes of a P0199 trouble code which means an intermittent problem has been detected in the engine oil temperature sensor signal. Also includes links to relevant forum topics on the code.

Symptoms of P0199 OBD II Trouble Code

  • Illuminated Check Engine Light

Common Causes of P0199 OBD II Trouble Code

  • Faulty engine oil temperature sensor
  • Engine cooling system problems
  • Wiring problems
  • Faulty PCM

Severity of P0199 OBD II Trouble Code

The severity of these codes is moderate to severe. In some cases, these codes set along with coolant temperature codes, can indicate an engine overheat condition. It?s a good idea to address this code as soon as possible.