P2109 2015 Toyota RAV4 Code - Throttle / Pedal Position Sensor 'A' Minimum Stop Performance

P2109 indicates an issue with the Throttle/Pedal Position Sensor 'A' Minimum Stop Performance, meaning the sensor is reporting a throttle stop position outside the expected range.

Symptoms may include reduced engine performance, the vehicle going into limp mode, poor acceleration, and the Check Engine Light being illuminated.

Common causes include a faulty throttle position sensor, pedal position sensor, damaged wiring or connectors, carbon buildup in the throttle body, or a malfunctioning electronic throttle control system.

While the vehicle may still be drivable, it may experience reduced performance or enter limp mode. It is recommended to diagnose and repair the issue promptly to avoid further damage.

Start by inspecting the throttle body and pedal assembly for damage or debris. Check the wiring and connectors for any signs of wear or corrosion. Use a scan tool to monitor throttle and pedal position sensor data.

Possible repairs include cleaning the throttle body, replacing the throttle position sensor or pedal position sensor, repairing damaged wiring, or replacing the electronic throttle control module if necessary.

Repair costs can vary, but cleaning the throttle body may cost $50-$100, while replacing a sensor or module could range from $150 to $500, depending on parts and labor.

Yes, carbon buildup in the throttle body can interfere with proper sensor readings and trigger the P2109 code.

Regularly clean the throttle body, inspect wiring for damage, and ensure sensors are functioning properly during routine maintenance.

In some cases, a throttle position sensor or throttle body replacement may require an ECU relearn or calibration using a scan tool to reset the throttle parameters.