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P code powertrain Medium severity

P2036 Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 2

The OBD2 code P2036 indicates that the exhaust gas temperature sensor circuit for Bank 2 Sensor 2 is reading a high voltage, which may suggest a malfunction in the sensor or its wiring

Definition

The OBD2 code P2036 indicates that the exhaust gas temperature sensor circuit for Bank 2 Sensor 2 is reading a high voltage, which may suggest a malfunction in the sensor or its wiring

Common causes

  • Faulty exhaust gas temperature sensor
  • Open or shorted wiring in the sensor circuit
  • Poor electrical connections or corroded connectors
  • Malfunctioning engine control module (ECM)
  • Exhaust system leaks
  • High resistance in the sensor circuit
  • Incorrect sensor installation or positioning

Common misdiagnoses

  • Faulty exhaust gas temperature sensor
  • Wiring issues or short circuits
  • Faulty engine control module (ECM)
  • Exhaust leaks
  • Incorrectly installed or damaged exhaust components
  • Other sensor failures (e.g., oxygen sensors)
  • Fuel system issues
  • Ignition system problems

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 EGT Sensor

    Visual Inspection: Check the EGT sensor for physical damage, corrosion, or loose connections. Ensure that the wiring harness and connectors are secure and free from damage

  3. 3. Sensor Condition

    If the sensor appears damaged or corroded, it may need to be replaced

  4. 4. Test the EGT Sensor

    Resistance Check: Use a multimeter to measure the resistance of the EGT sensor. Compare the readings to the manufacturer's specifications. If the resistance is out of range, the sensor may be faulty

  5. 5. Voltage Check

    With the engine running, check the voltage output of the EGT sensor. It should fall within the specified range. A voltage that is too high may indicate a short circuit or a faulty sensor

  6. 6. Inspect Wiring and Connectors

    Wiring Inspection: Look for any signs of fraying, chafing, or damage to the wiring leading to the EGT sensor. Repair or replace any damaged wiring

  7. 7. Connector Check

    Ensure that the connectors are clean and free of corrosion. A poor connection can lead to incorrect readings

  8. 8. Check for Short Circuits

    Use a multimeter to check for short circuits in the wiring harness. A short to power or ground can cause the sensor to send a high voltage signal

  9. 9. Inspect the Exhaust System

    Check for any exhaust leaks or issues that could affect the EGT sensor's readings. An exhaust leak can lead to incorrect temperature readings

  10. 10. Clear Codes and Test Drive

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

  11. 11. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the P2036 code for your specific vehicle make and model. Manufacturers may have issued guidance or solutions for known issues

  12. 12. Replace the EGT Sensor (if necessary)

    If all tests indicate that the EGT sensor is faulty, replace it with a new one. Ensure that the replacement part meets OEM specifications

  13. 13. Professional Diagnosis

    If the issue persists after following these steps, consider seeking help from a professional mechanic or technician who has experience with your vehicle's make and model. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the P2036 code