WOMS
P code powertrain Medium severity

P0095 Intake Air Temperature Sensor 2 Circuit

The OBD2 code P0095 indicates a malfunction in the circuit of the Intake Air Temperature Sensor 2, which measures the temperature of the air entering the engine

Definition

The OBD2 code P0095 indicates a malfunction in the circuit of the Intake Air Temperature Sensor 2, which measures the temperature of the air entering the engine

Common causes

  • Faulty intake air temperature sensor 2
  • Open or shorted wiring in the sensor circuit
  • Poor electrical connections or corroded connectors
  • Faulty engine control module (ECM)
  • Intake air temperature sensor 2 circuit ground issues
  • Air intake duct leaks
  • Contaminated or damaged sensor element

Common misdiagnoses

  • Faulty Mass Air Flow (MAF) Sensor
  • Faulty Engine Coolant Temperature (ECT) Sensor
  • Vacuum Leaks
  • Faulty Engine Control Module (ECM)
  • Wiring Issues or Short Circuits
  • Faulty Intake Air Temperature Sensor 1
  • Air Filter Restrictions
  • Fuel System Issues

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 additional context for the problem

  2. 2. Inspect the IAT Sensor

    Locate the IAT sensor 2, which is typically found in the intake manifold or near the air intake duct

  3. 3. Check for physical damage to the sensor, such as cracks or corrosion

  4. 4. Check Wiring and Connectors

    Inspect the wiring harness and connectors associated with the IAT sensor for signs of damage, fraying, or corrosion

  5. 5. Ensure that the connectors are securely attached and free of dirt or moisture

  6. 6. Test the IAT Sensor

    Use a multimeter to test the resistance of the IAT sensor. Compare the readings to the specifications provided in the vehicle’s service manual

  7. 7. If the resistance is out of range, the sensor may need to be replaced

  8. 8. Check for Short Circuits or Open Circuits

    With the multimeter, check for continuity in the wiring between the IAT sensor and the ECM

  9. 9. Look for any short circuits to ground or open circuits that could be causing the fault

  10. 10. Inspect the Air Intake System

    Check for any obstructions or leaks in the air intake system that could affect the sensor readings

  11. 11. Ensure that the air filter is clean and properly installed

  12. 12. Check the ECM

    If all other components are functioning correctly, there may be an issue with the ECM itself. This is less common but can happen

  13. 13. Ensure that the ECM is receiving the correct voltage and ground

  14. 14. Clear Codes and Test Drive

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

  15. 15. Take the vehicle for a test drive to see if the code returns

  16. 16. Consult a Professional

    If the issue persists after following these steps, it may be best to consult a professional mechanic or technician for further diagnosis.Additional Tips: - Always refer to the vehicle’s service manual for specific testing procedures and specifications. - Ensure that you are working in a safe environment and take necessary precautions when working on the vehicle’s electrical system. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the P0095 code