P0223 2017 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'B' Circuit High Input

The P0223 code indicates a high input signal from the throttle or pedal position sensor 'B' circuit, meaning the sensor is sending voltage outside the expected range.

Symptoms can include reduced engine performance, difficulty accelerating, poor fuel efficiency, the check engine light being on, and potential limp mode activation.

Common causes include a malfunctioning throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

Driving with this code is not recommended as it can affect engine performance and safety; the vehicle may enter limp mode or lose acceleration control.

Diagnosis typically involves using an OBDII scanner, visually inspecting sensor wiring and connectors, and testing the throttle position sensor for proper voltage readings.

Repair options may include replacing the throttle position sensor, repairing damaged wiring or connectors, or resetting the ECM after resolving the issue.

You’ll typically need an OBDII scanner, a multimeter to test voltage and continuity, and possibly basic hand tools for sensor replacement.

Repair costs can vary, but throttle position sensor replacement generally ranges from $100 to $300, including parts and labor.

While less common, a dirty or sticking throttle body can interfere with sensor readings and may contribute to this code.

Clearing the code will reset the check engine light, but unless the underlying issue is resolved, the code is likely to return.