P2120 2018 Toyota RAV4 Code - Throttle Pedal Position Sensor/Switch 'D' Circuit
Quick Answer
The Accelerator Pedal Position (APP) sensor is built into the accelerator pedal sensor assembly and has 2 sensor circuits: VPA (main) and VPA2 (sub). Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit 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
- P2120 2018 Toyota RAV4 indicates Throttle Pedal Position Sensor/Switch 'D' Circuit.
- Common causes
- Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit 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 P2120 2018 Toyota RAV4 Description
The ECM monitors the actual accelerator pedal opening angle (throttle valve opening angle) through the signals from VPA and VPA2 and controls the throttle actuator according to these signals.
When either the output voltage of VPA or VPA2 deviates from the standard range, or the difference between the output voltages of the 2 sensor circuits is more than the threshold, the ECM determines that there is a malfunction in the accelerator pedal position sensor. The ECM then illuminates the MIL and stores a Diagnostic Trouble Code (DTC).
What are the Possible Causes of the DTC P2120 2018 Toyota RAV4?
- Faulty Accelerator Pedal Position (APP) Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2120 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 P2120 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 P2120 2018 Toyota RAV4 Code
1. What are the common symptoms of OBDII code P2120 in a 2018 Toyota RAV4?
- Common symptoms include issues with acceleration, decreased engine power, and possibly the vehicle going into limp mode.
2. What does the Throttle Pedal Position Sensor/Switch 'D' Circuit refer to in a Toyota RAV4?
- This code indicates a problem with the throttle pedal position sensor or switch, specifically in circuit 'D'.
3. What are the possible causes of OBDII code P2120 in a 2018 Toyota RAV4?
- Possible causes include a faulty throttle pedal position sensor, damaged wiring or connectors in circuit 'D', or issues with the engine control module.
4. How can I diagnose the Throttle Pedal Position Sensor/Switch 'D' Circuit issue in my Toyota RAV4?
- Diagnosis typically involves checking the sensor's wiring and connectors for damage, testing the sensor's functionality, and using a diagnostic tool to read the code.
5. Can driving with OBDII code P2120 in a Toyota RAV4 cause further damage?
- Continuing to drive with this code may lead to decreased performance and potentially more severe issues if not addressed promptly.
6. Is it safe to continue driving my Toyota RAV4 with the P2120 code present?
- It's not recommended to drive the vehicle with this code active, as it can affect the performance and safety of the vehicle.
7. How can I repair the Throttle Pedal Position Sensor/Switch 'D' Circuit problem in my 2018 Toyota RAV4?
- Repair options may include replacing the throttle pedal position sensor, repairing damaged wiring or connectors, or resetting the engine control module.
8. Can I reset the OBDII code P2120 in my Toyota RAV4 without fixing the underlying issue?
- While you can clear the code with a diagnostic tool, it's crucial to address the root cause to prevent the issue from recurring.
9. Are there any DIY tips for troubleshooting OBDII code P2120 in a Toyota RAV4?
- DIY tips include checking the sensor's wiring for damage, ensuring proper connections, and consulting the vehicle's manual for guidance.
10. How much does it typically cost to fix the Throttle Pedal Position Sensor/Switch 'D' Circuit problem in a Toyota RAV4?
- The cost of repairs can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.
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