P2135 2016 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' / 'B' Voltage Correlation

Code P2135 indicates a voltage correlation issue between the throttle position sensors (TPS) A and B, meaning the two sensors are not reading in sync as expected.

Symptoms may include reduced engine power, the Check Engine Light turning on, poor throttle response, or the vehicle entering "limp mode" to prevent further damage.

Common causes include a faulty throttle position sensor, damaged wiring or connectors, throttle body issues, or contamination affecting the sensors.

Yes, a dirty or carbon-clogged throttle body can cause incorrect sensor readings and trigger this code.

Repairs may include cleaning the throttle body, inspecting and repairing wiring and connectors, or replacing the throttle position sensor or throttle body assembly if needed.

Driving with this code is not recommended, as it can result in reduced power or sudden loss of throttle response, posing a safety risk.

Diagnosis involves using a scan tool to check live data from the throttle position sensors, inspecting wiring and connectors for damage, and testing the throttle body for proper operation.

While less common, a faulty accelerator pedal position sensor can potentially cause this code, as it's part of the vehicle's electronic throttle control system.

Repair costs vary but can range from $100 for cleaning or minor wiring repairs to $500 or more if the throttle body assembly needs replacement.

No, clearing the code without addressing the underlying problem will only temporarily turn off the Check Engine Light, and the issue is likely to reoccur.