P2122 2015 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 2015 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 2015 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 2015 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 2015 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 2015 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 P2122 2015 Toyota RAV4 Code
1. What does the OBDII code P2122 mean on a 2015 Toyota RAV4?
The code P2122 indicates that the throttle pedal position sensor/switch "D" circuit is detecting a low voltage input, which may affect throttle response.
2. What are the symptoms of P2122 in a 2015 Toyota RAV4?
Common symptoms include reduced engine power, poor throttle response, the vehicle entering limp mode, and the illumination of the check engine light.
3. What causes the P2122 code to appear on a Toyota RAV4?
Possible causes include a faulty throttle pedal position sensor, damaged wiring or connectors in the sensor circuit, or an issue with the engine control module (ECM).
4. Can I drive my 2015 Toyota RAV4 with the P2122 code?
While the vehicle may still drive, it could experience reduced power and responsiveness, potentially making it unsafe to operate. It’s best to address the issue promptly.
5. How do I diagnose the P2122 code on my Toyota RAV4?
Start by inspecting the throttle pedal position sensor wiring and connectors for damage. Use a multimeter to check for proper voltage and continuity in the circuit. If everything checks out, test the sensor itself.
6. How do I fix the P2122 code on a 2015 Toyota RAV4?
Repairs may involve replacing a faulty throttle pedal position sensor, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to repair the P2122 code on a Toyota RAV4?
Repair costs can vary, but replacing the throttle pedal position sensor typically costs $100–$300, including parts and labor. Wiring repairs may cost less.
8. Can a dirty throttle body cause the P2122 code?
No, a dirty throttle body is not a direct cause of P2122. The code specifically relates to the throttle pedal position sensor "D" circuit detecting low voltage.
9. Will clearing the code fix the P2122 issue on my 2015 Toyota RAV4?
Clearing the code may temporarily turn off the check engine light, but if the underlying issue isn’t resolved, the code will return.
10. Is the throttle pedal position sensor the same as the accelerator pedal sensor?
Yes, the throttle pedal position sensor is often integrated into the accelerator pedal assembly and monitors the pedal's position to regulate throttle response.
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