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P code powertrain High severity

P2313 Ignition Coil "E" Primary Control Circuit High

The OBD2 code P2313 indicates that there is a high voltage or an open circuit in the primary control circuit of ignition coil "E," which can lead to misfires or poor engine performance

Definition

The OBD2 code P2313 indicates that there is a high voltage or an open circuit in the primary control circuit of ignition coil "E," which can lead to misfires or poor engine performance

Common causes

  • Faulty ignition coil "E"
  • Open or shorted wiring in the ignition coil circuit
  • Poor electrical connections or corroded connectors
  • Faulty engine control module (ECM)
  • Failed ignition control module
  • High resistance in the ignition coil circuit
  • Faulty power supply to the ignition coil

Common misdiagnoses

  • Faulty ignition coil
  • Bad spark plugs
  • Ignition control module issues
  • Wiring harness problems
  • Engine control unit (ECU) malfunction
  • Fuel injector issues
  • Vacuum leaks
  • Crankshaft or camshaft position sensor failure

Troubleshooting steps

  1. 1. Check for Additional Codes

    Before proceeding, check for any other related trouble codes that may provide more context to the issue

  2. 2. Visual Inspection

  3. 3. Inspect the wiring and connectors associated with ignition coil "E" for any signs of damage, corrosion, or loose connections

  4. 4. Look for any frayed wires, broken connectors, or signs of overheating

  5. 5. Test the Ignition Coil

  6. 6. Remove the ignition coil "E" and perform a resistance test using a multimeter. Compare the readings to the specifications provided in the vehicle's service manual

  7. 7. If the coil is out of specification, it may need to be replaced

  8. 8. Check the Power and Ground

  9. 9. Verify that the ignition coil is receiving the correct voltage. Use a multimeter to check the voltage at the coil connector while the ignition is on (but the engine is off)

  10. 10. Check the ground connection for the ignition coil. A poor ground can cause high resistance and trigger the code

  11. 11. Inspect the PCM (Powertrain Control Module)

  12. 12. If the wiring and coil are in good condition, the issue may lie with the PCM. Check for any signs of damage or corrosion in the PCM connectors

  13. 13. If possible, perform a PCM reset and see if the code returns

  14. 14. Check for Shorts or Open Circuits

  15. 15. Use a multimeter to check for shorts to ground or open circuits in the wiring harness leading to the ignition coil

  16. 16. Inspect the wiring harness for any signs of wear or damage that could cause a short circuit

  17. 17. Test the Ignition Control Module (ICM)

  18. 18. If applicable, test the ignition control module, as it may be responsible for controlling the ignition coil. Follow the manufacturer's testing procedures

  19. 19. Clear the Code and Test Drive

  20. 20. After performing repairs or replacements, clear the trouble code using an OBD-II scanner and take the vehicle for a test drive to see if the code returns

  21. 21. Consult a Professional

    If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician for further diagnosis. By following these steps, you should be able to identify and resolve the issue related to the P2313 code