P2135 2018 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' / 'B' Voltage Correlation
Quick Answer
The throttle position sensor is mounted on the throttle with motor body assembly and detects the opening angle of the throttle valve. Common causes include Faulty Throttle Position Sensor (built into Throttle Body Assembly), Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2135 2018 Toyota RAV4 indicates Throttle / Pedal Position Sensor / Switch 'A' / 'B' Voltage Correlation.
- Common causes
- Common causes include Faulty Throttle Position Sensor (built into Throttle Body Assembly), Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2135 2018 Toyota RAV4 Description
As the valve closes, the sensor output voltage decreases and as the valve opens, the sensor output voltage increases. The Engine Control Module (ECM) calculates the throttle valve opening angle according to these signals and controls the throttle actuator in response to driver inputs. These signals are also used in calculations such as air-fuel ratio correction, power increase correction, and fuel-cut control.
The ECM uses the throttle position sensor to monitor the throttle valve opening angle. There are several checks that the ECM performs to confirm the proper operation of the throttle position sensor.
This sensor transmits two signals, if the output voltage difference between the two signals deviates from the normal operating range, the ECM interprets this as a malfunction in the throttle position sensor. The ECM illuminates the MIL and stores the Diagnostic Trouble Code (DTC).
What are the Possible Causes of the DTC P2135 2018 Toyota RAV4?
- Faulty Throttle Position Sensor (built into Throttle Body Assembly)
- Throttle Position Sensor circuit is open or shorted
- Throttle Position Sensor poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2135 2018 Toyota RAV4?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2135 2018 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2135 2018 Toyota RAV4 Code
What does the OBDII code P2135 mean on a 2018 Toyota RAV4?
P2135 indicates a voltage correlation issue between the throttle or pedal position sensors 'A' and 'B,' meaning the readings from these sensors do not match as expected.
What are the symptoms of code P2135 in a 2018 Toyota RAV4?
Common symptoms include reduced engine performance, the throttle becoming unresponsive, the vehicle entering "limp mode," and the illumination of the check engine light.
What causes the P2135 code to appear on a 2018 Toyota RAV4?
Possible causes include a faulty throttle position sensor (TPS), a damaged accelerator pedal position sensor, wiring issues such as corrosion or poor connections, or a malfunctioning throttle body.
Can I drive my 2018 Toyota RAV4 with a P2135 code?
It is not recommended to drive for long distances with this code active, as the vehicle may go into limp mode, potentially creating unsafe driving conditions.
How do I fix the P2135 code on my 2018 Toyota RAV4?
Possible fixes include inspecting and repairing damaged wiring or connectors, cleaning or replacing the throttle body, and replacing faulty sensors like the TPS or accelerator pedal position sensor.
What tools are needed to diagnose the P2135 code?
You will need an OBDII scanner to read the code, a multimeter to test sensor voltage and continuity, and potentially basic hand tools to access and inspect components.
How much does it cost to repair the P2135 code on a 2018 Toyota RAV4?
Repair costs vary depending on the issue. Replacing a throttle position sensor may cost $100–$300, while throttle body replacement can cost $300–$700, including parts and labor.
Can a dirty throttle body cause the P2135 code?
Yes, carbon buildup or debris in the throttle body can cause improper sensor readings, potentially triggering the P2135 code.
Is the P2135 code covered under warranty for a 2018 Toyota RAV4?
It depends on your vehicle's warranty status. If the powertrain or emissions warranty is still active, the repair may be covered. Check with your dealer for confirmation.
Do I need to reprogram the throttle body after fixing the P2135 code?
In some cases, a throttle body relearn procedure may be required after cleaning or replacing the throttle body. Consult your vehicle's repair manual or dealership for guidance.
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