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Error Code P2622: What It Means & What To Do?

OBD Code P2622 - Throttle Position Output Circuit High

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Decreased engine performance is usually known as the throttle position output circuit high. The throttle position sensor/ switch is usually found on the intake manifold of the throttle body and the pedal position sensor/ switch comes as a part of the accelerator pedal assembly. The ECM will get information from these sensors as to how fast and quick the driver has to go. The error code will be set in the PCM if an issue arises with the sensor or the circuit. The speed of the vehicle will also get reduced to 20 miles per hour so that the engine can be protected as well as the driver due to the inability of the control module to properly identify the engine performance as expected.

Learn More About OBD Error Code P2622

The throttle position circuit signal is carefully looked after by the engine control module. If the throttle position circuit signal goes out of factory specification, then the ECM will set the error code in the vehicle.


What causes this problem with the Throttle Position Output Circuit High?


  • Damaged throttle position sensor/switch.
  • There might be an opening or the throttle position sensor/switch harness might have a short circuit.
  • The electrical connection of the throttle position sensor/switch circuit might be weak.

Replace/Repair These Parts To Fix OBD Code P2622

  1. Powertrain Control Module - The PCM regulates important functions of the vehicle as well as it has a direct impact on how well your vehicle performs. Fixing your faulty powertrain control module (PCM) will help your engine to run smoothly
  2. Throttle Position Sensor - Do you find the flashing of the engine light without any reason? Then the throttle position sensor can be defective. Alter it quickly.
  3. Throttle Body - A very low idle after starting the vehicle indicates that the throttle body is defective. Get it fixed instantly by buying a new throttle body from Parts Avatar.
  4. Accelerator Pedal Assembly - Does your engine surge without any reason? Then your accelerator pedal assembly can be defective which needs replacement.
  5. Engine Control Module - Conditions of misfire shows that your ECM is faulty. Fix it as soon as possible to avoid the P2622 error in your vehicle by getting a new ECM from PartsAvatar.
  6. Throttle Control Motor - Does your engine hesitate to start? Then it’s high time to replace the throttle control motor as it might be defective.
  7. Throttle Pedal Sensor If your vehicle hesitates to move when the gas pedal is pressed, then the throttle pedal sensor can be defective. Replacing it quickly can help you to get rid of the P2622 error code.

Symptoms Of OBD Error Code P2622

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2622 here:


Common Symptoms


  • Performance of the engine is less.
  • As a result of low performance, the engine might reach the limp home mode.
  • Fuel consumption is high.

How To Correct P2622 Throttle Position Output Circuit High

Here are some ways with the help of which you will be able to correct the OBD Code P2622


  • Replacing the throttle position sensor can help you to avoid this error.


There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high-grade PCM, throttle position sensor, throttle position switch, throttle body, accelerator pedal assembly, ECM, digital volt, ohmmeter, throttle control motor and a lot more for our precious customers.

Easy Diagnosis Of Engine Error OBD Code P2622

Here are some steps which you should follow in order to diagnose this fault code P2622:


  • A variable output voltage reading is received by the PCM from the TPS which usually lies between 0.5 to 5.0 volts.
  • In order to achieve the desired RPM level, this output signal helps the PCM to determine the degree to which the throttle body must open.
  • Most of the TPS belong to non-contact variety type which has the hall effect sensors, magnetoresistive style sensors, and inductive sensors in it.
  • To successfully diagnose this situation, you will need multiple tools.
  • A scanner and DVOM can be useful to diagnose this error.
  • The service manual of the manufacturer will be needed when you try to diagnose this error.
  • Start the process by checking the wires and connectors.
  • As necessary, every one of the damaged, separated, shorted or eroded wires must be fixed.
  • After every repair, clear the error code and ensure it’s successful.
  • If every component function perfectly, attaches a scanner to the diagnostic scanner to retrieve the codes and freeze frame data.
  • To diagnose the erratic condition, this information can be highly useful to analyze which contributed to the storing of this error code.
  • Operate the vehicle, once the error is cleared to see if the error returns again.
  • If the code doesn’t show up immediately, there might be an erratic condition.
  • Erratic conditions are always quite challenging to carry out and in such situations, they must be worsened before proceeding for further diagnosis.
  • As the voltage goes down look for sudden jumps in voltage or glitches.
  • Adjusting the throttle position sensor is dangerous to proper operation if it is fixed with an adjustable sensor.
  • If the TPS works well, then you will have to separate the connector and its linked controllers.
  • Carry out a continuity and resistance test on every circuit and fix every one of the open and short circuits if necessary.
  • Test drive the vehicle by clearing the codes to make sure the diagnosis is successful.
  • The PCM can be faulty if all the system circuits and TPS prove to be within the accepted specifications.
  • Failure of the PCM is very rare and if you replace them, you must reprogram them early.


Common Mistakes When Diagnosing the P2622 Code


  • The throttle control motor is faulty.
  • PCM might be defective.
  • Problem with the electrical wires.

Other Diagnostic Codes Related To OBD Code P2622

P2620 - Throttle Position Output Circuit/Open

P2621 - Throttle Position Output Circuit Low