WOMS
P code powertrain Medium severity

P024E Charge Air Cooler Bypass Position Sensor "A" Circuit Low

The OBD2 code P024E indicates that the Charge Air Cooler Bypass Position Sensor "A" is reporting a low voltage or signal, suggesting a potential issue with the sensor or its circuit

Definition

The OBD2 code P024E indicates that the Charge Air Cooler Bypass Position Sensor "A" is reporting a low voltage or signal, suggesting a potential issue with the sensor or its circuit

Common causes

  • Faulty charge air cooler bypass position sensor
  • Damaged wiring or connectors in the sensor circuit
  • Short circuit in the sensor circuit
  • Open circuit in the sensor circuit
  • Faulty engine control module (ECM)
  • Vacuum leaks affecting the bypass actuator
  • Malfunctioning charge air cooler bypass actuator

Common misdiagnoses

  • Faulty charge air cooler bypass valve
  • Faulty charge air cooler bypass position sensor
  • Wiring issues or short circuits in the sensor circuit
  • Faulty engine control module (ECM)
  • Vacuum leaks
  • Turbocharger issues
  • Intercooler problems
  • Intake manifold leaks

Troubleshooting steps

  1. 1. Check for Additional Codes

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

  2. 2. Inspect the Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors associated with the Charge Air Cooler Bypass Position Sensor. Look for signs of damage, corrosion, or loose connections

  3. 3. Connector Condition

    Ensure that the connectors are clean and securely attached. Corrosion or dirt can lead to poor electrical connections

  4. 4. Test the Charge Air Cooler Bypass Position Sensor

    Resistance Check: Use a multimeter to measure the resistance of the sensor. Compare the readings to the specifications provided in the vehicle’s service manual

  5. 5. Voltage Check

    With the ignition on (engine off), check the voltage at the sensor connector. It should match the expected voltage as per the manufacturer’s specifications

  6. 6. Check the Ground Circuit

    Ensure that the ground circuit for the sensor is intact. A poor ground can lead to low voltage readings. Use a multimeter to check for continuity between the sensor ground and the vehicle ground

  7. 7. Inspect the Charge Air Cooler Bypass Valve

    If applicable, check the operation of the Charge Air Cooler Bypass Valve. Ensure it is functioning correctly and not stuck in a closed or open position

  8. 8. Check for Vacuum Leaks

    Inspect the vacuum lines and connections related to the Charge Air Cooler system. A vacuum leak can affect the operation of the bypass valve and sensor

  9. 9. Perform a System Reset

    After addressing any issues found, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  10. 10. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the P024E code for your specific vehicle make and model. Manufacturers may have issued updates or fixes for known issues

  11. 11. Replace the Sensor (if necessary)

    If the sensor is found to be faulty after testing, replace it with a new one. Ensure that the replacement part is compatible with your vehicle

  12. 12. Seek Professional Help

    If you are unable to diagnose or fix the issue after these steps, consider seeking help from a professional mechanic or automotive technician who has experience with your vehicle’s make and model.Conclusion By following these troubleshooting steps, you should be able to identify the cause of the P024E code and take appropriate action to resolve the issue. Always refer to the vehicle’s service manual for specific details and specifications related to your vehicle