P2122 2010 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'D' Circuit Input Low
Quick Answer
The Accelerator Pedal Position (APP) sensor is mounted on the accelerator pedal to detect the angle of the accelerator pedal. Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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 2010 Toyota Camry indicates Throttle Pedal Position Sensor/Switch 'D' Circuit Input Low.
- Common causes
- Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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 2010 Toyota Camry Description
In the accelerator pedal position sensor, the voltage applied to terminals VPA and VPA2 of the Engine Control Module (ECM) changes between 0 V and 5 V in proportion to the angle of the accelerator pedal. The VPA is a signal to indicate the actual accelerator pedal angle and is used for the engine control. VPA2 is used to detect malfunctions of the sensor itself.
The ECM monitors the accelerator pedal angle from VPA and VPA2 signal outputs, and controls the throttle motor based on these signals.
What are the Possible Causes of the DTC P2122 2010 Toyota Camry?
- Faulty Accelerator Pedal Position (APP) Sensor
- Accelerator Pedal Position (APP) Sensor harness is open or shorted
- Accelerator Pedal Position (APP) Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2122 2010 Toyota Camry?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2122 2010 Toyota Camry 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 2010 Toyota Camry Code
1. What does OBDII code P2122 mean on a 2010 Toyota Camry?
P2122 indicates that the Throttle Pedal Position Sensor/Switch 'D' circuit has a low input voltage, which the vehicle’s engine control module (ECM) detects as a problem.
2. What are the common symptoms of code P2122 in a 2010 Toyota Camry?
Symptoms include reduced engine power (limp mode), unresponsive throttle, hesitation during acceleration, and the check engine light being illuminated.
3. What causes the P2122 code to appear in my Toyota Camry?
This code can be caused by a faulty throttle pedal position sensor, damaged or corroded wiring, loose electrical connections, or a malfunctioning ECM.
4. Can I drive my 2010 Toyota Camry with a P2122 code?
It is not recommended to drive the vehicle with this code, as reduced power or throttle response issues can make driving unsafe.
5. How do I diagnose the P2122 code on a Toyota Camry?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the throttle pedal position sensor and its wiring for damage, and testing the sensor's voltage with a multimeter.
6. How do I fix the P2122 code on a 2010 Toyota Camry?
Common fixes include replacing the throttle pedal position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the ECM.
7. How much does it cost to fix a P2122 code on a Toyota Camry?
Repair costs depend on the issue. Replacing the throttle pedal position sensor typically costs $150–$300, while wiring repairs may vary based on complexity.
8. Can a dirty throttle body cause code P2122?
A dirty throttle body is unlikely to cause this specific code, as it relates directly to the throttle pedal position sensor circuit.
9. Does the P2122 code always mean the throttle pedal position sensor is bad?
No, this code could also be due to wiring issues, corroded connectors, or a problem with the ECM, so a proper diagnosis is essential.
10. Will resetting the check engine light fix the P2122 code?
Resetting the light may clear the code temporarily, but unless the underlying issue is resolved, the code will likely return.
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