P0223 - OBD-II Trouble Code

Our automotive experts have put together the following information about the P0223 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0223 code.

What Does P0223 Code Mean?

Fault Code Definition

Code P0223 is triggered when the voltage output from the Throttle/Pedal Position Sensor/Switch to the PCM is too high.

The Throttle Position Sensor/Switch is located on the Throttle Body of the Intake Manifold and the Pedal Position Sensor/Switch is located on the Accelerator Pedal. These sensors provide precise input from the driver's foot in terms of how much power is needed—and how urgently—from the engine.

As the Throttle Position Sensor is rotated from its base resting position to full acceleration, it sends a decreasing voltage signal to the Powertrain Control Module (PCM). This decreasing or increasing voltage signal is used by the PCM to manage the Air Fuel Ratio and Spark Timing of the engine as well as other emissions system components.

P0223 Symptoms

  • Check Engine Light will illuminate
  • In many cases, no abnormal symptoms may be noticed
  • In some cases, the engine may be hard starting
  • In some cases, the engine may hesitate during acceleration

Common Problems That Trigger the P0223 Code

  • Defective Throttle or Pedal Position Sensor or Switch
  • Torn or jammed floor mats
  • Chafed or corroded Throttle/Pedal Position Sensor, wiring, or connections

Common Misdiagnoses

  • Throttle or Pedal Position Sensor is replaced when the real problem is a poor connection or chafed wiring
  • Pedal Position Sensor is replaced when the real problem is torn or damaged floor mats

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