P2135 2013 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' / 'B' Voltage Correlation

The code P2135 indicates a Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue in the vehicle's system.

Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.

Potential causes include a faulty throttle position sensor, accelerator pedal position sensor, wiring issues, or a problem with the electronic throttle control system.

Diagnosis involves using a scan tool to check for the code, examining the sensors and their wiring for any visible damage, and performing voltage tests on the sensors.

It is not recommended to drive with the P2135 code active, as it can lead to unsafe driving conditions and potential further damage to the vehicle.

Repair options include replacing the faulty sensors, repairing damaged wiring, or resetting the throttle control system through proper relearn procedures.

While basic checks like inspecting sensor connections and wiring can be done DIY, proper diagnosis and repair of the issue may require professional assistance.

The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the P2135 code is not addressed, it is likely to return.

While a dealership can provide specialized service, independent auto repair shops with experience in diagnosing and repairing electronic throttle control issues can also effectively address the problem.