P2122 2018 Toyota RAV4 Code - Throttle Pedal Position Sensor/Switch 'D' Circuit Input Low
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
- P2122 2018 Toyota RAV4 indicates Throttle Pedal Position Sensor/Switch 'D' Circuit Input Low.
- 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 P2122 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 P2122 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 P2122 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 P2122 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.
Need more information about the P2122 2018 Toyota RAV4 code?
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Frequently Asked Questions about P2122 2018 Toyota RAV4 Code
1. What does OBDII code P2122 for a 2018 Toyota RAV4 mean?
The code P2122 indicates a problem with the Throttle Pedal Position Sensor/Switch 'D' Circuit Input being low, affecting the throttle pedal position sensor's signal.
2. What are common symptoms of OBDII code P2122 in a 2018 Toyota RAV4?
Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.
3. What are possible causes of OBDII code P2122 in a 2018 Toyota RAV4?
Possible causes include a faulty throttle pedal position sensor, damaged wiring or connectors in the throttle pedal circuit, or issues with the engine control module (ECM).
4. How can I diagnose the OBDII code P2122 in my 2018 Toyota RAV4?
Diagnosis typically involves using a scan tool to read the trouble codes, testing the throttle pedal position sensor's voltage, and inspecting the wiring and connectors for any damage.
5. Can I still drive my 2018 Toyota RAV4 with OBDII code P2122?
It is not recommended to drive the vehicle with this code as it can lead to unsafe driving conditions and potential further damage to the engine.
6. How can I repair OBDII code P2122 in a 2018 Toyota RAV4?
Repair options may include replacing the throttle pedal position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the engine control module (ECM).
7. Are there any DIY tips for addressing OBDII code P2122 in a 2018 Toyota RAV4?
While some basic checks like inspecting wiring connections can be done DIY, resolving this code often requires specialized tools and knowledge, so it's best to consult a professional mechanic.
8. Can a dirty throttle body cause OBDII code P2122 in a 2018 Toyota RAV4?
While a dirty throttle body can cause related issues, OBDII code P2122 specifically points to problems with the throttle pedal position sensor circuit and is not directly caused by a dirty throttle body.
9. What is the typical cost to repair OBDII code P2122 in a 2018 Toyota RAV4?
The cost of repairing this code can vary depending on the exact cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.
10. How do I reset the OBDII code P2122 in my 2018 Toyota RAV4 after repairs?
After addressing the underlying issue causing the code, you can reset it using an OBDII scan tool or by disconnecting the car battery for a few minutes to clear the ECM's memory.
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