WOMS
P code powertrain Medium severity

P06CE Cylinder 10 Glow Plug Incorrect

The OBD2 code P06CE indicates that the glow plug for cylinder 10 is either malfunctioning or not operating correctly, which can affect engine performance and starting, particularly in cold conditions

Definition

The OBD2 code P06CE indicates that the glow plug for cylinder 10 is either malfunctioning or not operating correctly, which can affect engine performance and starting, particularly in cold conditions

Common causes

  • Faulty glow plug
  • Poor electrical connection
  • Damaged wiring or connectors
  • Failed glow plug control module
  • Short circuit in the glow plug circuit
  • Open circuit in the glow plug circuit
  • Faulty engine control module (ECM)

Common misdiagnoses

  • Faulty glow plug
  • Glow plug control module failure
  • Wiring issues or short circuits
  • Engine control module (ECM) malfunction
  • Fuel injector problems
  • Cylinder compression issues
  • Incorrect fuel type or quality
  • Intake air leaks
  • Exhaust system blockages
  • Other cylinder misfire codes

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are other issues present

  2. 2. Inspect the Glow Plug

  3. 3. Locate the glow plug for cylinder 10 and visually inspect it for any signs of damage, corrosion, or wear

  4. 4. Use a multimeter to test the resistance of the glow plug. A typical reading should be within the manufacturer's specifications (usually a few ohms). If the resistance is too high or infinite, the glow plug may be faulty and needs replacement

  5. 5. Check Glow Plug Wiring and Connectors

  6. 6. Inspect the wiring harness and connectors leading to the glow plug for any signs of damage, fraying, or corrosion

  7. 7. Ensure that the connections are secure and free of dirt or debris

  8. 8. Test the Glow Plug Relay

  9. 9. The glow plug relay controls the power to the glow plugs. If the relay is faulty, it may not supply power to the glow plug, leading to the P06CE code

  10. 10. Test the relay for proper operation using a multimeter or by swapping it with a known good relay if available

  11. 11. Check the Engine Control Module (ECM)

  12. 12. Ensure that the ECM is functioning correctly. Sometimes, a software update or reprogramming may be necessary if the ECM is not recognizing the glow plug correctly

  13. 13. Check for any signs of water damage or corrosion in the ECM connectors

  14. 14. Inspect the Glow Plug Control Module (if applicable)

  15. 15. Some vehicles have a dedicated glow plug control module that manages the operation of the glow plugs. Check for any faults in this module

  16. 16. Perform a Visual Inspection of the Engine

  17. 17. Look for any signs of engine oil or coolant leaks that could affect the glow plug operation

  18. 18. Ensure that there are no obstructions or issues with the intake or exhaust systems that could impact engine performance

  19. 19. Clear the Codes and Test Drive

  20. 20. After performing the necessary repairs or replacements, clear the trouble codes using the OBD-II scanner

  21. 21. Take the vehicle for a test drive to see if the code reappears. Monitor the engine performance and starting conditions

  22. 22. Consult the Service Manual

  23. 23. Refer to the vehicle's service manual for specific diagnostic procedures and specifications related to the glow plug system

  24. 24. Seek Professional Help

  25. 25. If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with diesel engines and glow plug systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the P06CE code