P0120 2013 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction

P0120 indicates a malfunction in the Throttle/Pedal Position Sensor/Switch 'A' Circuit, which monitors the position of the throttle or accelerator pedal for proper engine control.

Common symptoms include poor engine performance, reduced power, difficulty accelerating, the Check Engine Light turning on, and possible limp mode activation.

Potential causes include a faulty throttle position sensor, damaged wiring or connectors, issues with the accelerator pedal position sensor, or a malfunctioning engine control module (ECM).

Driving with the P0120 code is not recommended, as it can lead to reduced performance or sudden loss of power, creating safety concerns.

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting wiring and connectors, testing the throttle position sensor and accelerator pedal sensor, and checking for related codes.

Repairs may include replacing the throttle position sensor, accelerator pedal sensor, or repairing damaged wiring and connectors. In rare cases, the ECM may require reprogramming or replacement.

Repair costs vary but typically range from $100 to $400, depending on whether the throttle position sensor, pedal sensor, or wiring needs replacement.

While unlikely, a dirty throttle body can sometimes contribute to sensor issues. Cleaning the throttle body may help if no other faults are found.

Not always. First, inspect and test the sensor, wiring, and connectors. Replace the sensor only if it is confirmed to be faulty.

Clearing the code without addressing the underlying issue will not resolve the problem, and the code will likely return. Proper diagnosis and repair are necessary.