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Error Code P20E5: What It Means & What To Do?

OBD Code P20E5 - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

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The trouble code P20E5 can be described as Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2. The error code P20E5 would start triggering when the PCM would detect some fault in exhaust gas temperature sensor. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

Learn More About OBD Error Code P20E5

This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another. This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code. The P20E5 trouble code would indicate that a exhaust gas temperature sensor which is not as per the predetermined limit has been detected by the ECM. Now when this would occur, the fault code would be stored and there would be an illumination in the malfunction indicator light.

What causes this problem with the Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2?

  • Defaults in the exhaust gas temperature sensor
  • Exhaust gas temperature sensor harness might be sometimes open or shorted
  • Exhaust gas temperature sensor circuit might have bad electrical connection
  • Sometimes there might be leakage in the exhaust
  • Imprudent particulate matter buildup on sensor

Replace/Repair These Parts To Fix Code P20E5

  1. Engine Control Module - It is not always the components, but the ECM that can also be faulty. It can cause misinterpretation of correct data thus leading to wrong operational decisions which will affect the transmission and overall engine performance. Thus, replace faulty module and reprogram it now!
  2. Powertrain Control Module - Powertrain Control Module can also be faulty in rare cases and thus needs through checks for system and software errors. Thus, check and replace it, if required.
  3. Diagnostic Tool - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!
  4. Electronic Control Unit – ECU monitors the temperature differences in the boost converter with the help of the temperature sensors to prevent the converter from overheating and malfunctioning. Thus, replace faulty ECU immediately.
  5. Exhaust Gas Recirculation Valve - Did you just see check engine light flashing on your dashboard? If the computer would detect some fault with the automobile’s EGR valve circuit, then it would set up the check engine light so that the driver is notified about the fault. Don’t waste time and get them replaced or else this fault code can turn up.
  6. Diesel Exhaust Fluid Pump - The diesel exhaust fluid pump needs to work properly if the transmission system has to perform. If it is not functioning, the transmission may slip and cause harsh shifts too. Thus, replace faulty pump now and buy a new one from us!
  7. Fuel Injector – The fuel injector is a small nozzle into which liquid fuel is injected at high pressure. It works like a spray nozzle of a pressure washer. The placement of the injector can be in a different part of the engine depending upon the type of fuel injection system is being used. High pressure from the fuel pump feeds the fuel to the fuel injector. Thus, replace damaged fuel injector now!

Symptoms Of The OBD Error Code P20E5

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P20E5 code by mentioning some major symptoms below:

Common Symptoms

  • Illumination in the service engine soon light

How To Correct Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2 Issue

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P20E5:

  • Make sure to mend the faulty exhaust gas temperature sensor circuit
  • Repair or replace the quirky exhaust gas temperature sensor harness
  • Recondition the non-functioning exhaust gas temperature sensor
  • Exhaust System parts replacement
  • Faulty wiring and connector issue
  • PCM repair and reprogramming

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of exhaust gas temperature sensor, ecm, pcm, exhaust manifold, body control module components, transmission shift solenoid, ecm module, pcm module and many more. Now all your problems would vanish within no time.

Easy Diagnosis Of Engine Error OBD Code P20E5

Here are some steps which you should follow in order to diagnose this fault code:

  • Hook up a scan tool to the DLC port and check for any codes present.
  • Note the codes and freeze frame data from all the codes.
  • Clear the stored codes from the ECU.
  • Perform a road test under similar conditions as the freeze frame data indicated.
  • Check that the P20E5 is the code that has come back after the test drive.
  • A visual inspection will be done looking for signs of exhaust leaks or damaged wiring for either the sensor itself of the harness.
  • Inspect the exhaust gas temperature sensor for voltage output and replace, it any fault is found.
  • Using a multimeter, the OHMs will be checked to the exhaust gas temperature sensor.
  • The vehicle will be run and the presence of exhaust leaks will be checked.

Common Mistakes When Diagnosing The P20E5 Code

  • There can be a failure in the powertrain control module
  • Defaults in the exhaust gas temperature sensor
  • Some issues related to the wiring

Other Diagnostic Codes Related To OBD Code P20E5

P20E2 - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1

P20E3 - Exhaust Gas Temperature Sensor 1/3 Correlation Bank 1

P20E4 - Exhaust Gas Temperature Sensor 2/3 Correlation Bank 1