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Engine-Codes – Nissan – P0122 2011 Nissan Versa

P0122 2011 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The P0122 code in a 2011 Nissan Versa indicates that there is a low input signal from the throttle position sensor or switch '1'. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Corroded or dirty sensor. 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
P0122 2011 Nissan Versa indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Corroded or dirty sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0122 2011 Nissan Versa Description

The P0122 code in a 2011 Nissan Versa indicates that there is a low input signal from the throttle position sensor or switch '1'. The throttle position sensor is a crucial component of the engine control system, as it monitors the position of the throttle valve and sends this information to the engine control module (ECM). The ECM uses this data to determine the appropriate air-fuel mixture for combustion, ignition timing, and other engine functions.

OBDII Code P0122 2011 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit Low Input
P0122 2011 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Common Causes of P0122 2011 Nissan Versa

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corroded or dirty sensor
  4. ECM malfunction
  5. Environmental factors such as moisture or debris affecting the sensor

Symptoms of P0122 2011 Nissan Versa

  1. Rough idling
  2. Stalling
  3. Hesitation during acceleration
  4. Poor fuel efficiency
  5. Engine misfires

How to Fix P0122 2011 Nissan Versa

  1. Begin by visually inspecting the throttle position sensor and its wiring for any visible damage or corrosion.
  2. Use a multimeter to test the sensor's output voltage to determine if it is within the manufacturer's specified range.
  3. If the sensor is faulty, replace it with a new one following the manufacturer's instructions.
  4. Check and repair any damaged wiring or connectors in the sensor circuit.
  5. Clear the diagnostic trouble codes from the ECM and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0122 2011 Nissan Versa

The typical repair costs for addressing a P0122 code in a 2011 Nissan Versa can range from $150 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate of the repair costs. Labor rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or metropolitan areas and lower at independent shops.

When is the Code Detected?

An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0122 2011 Nissan Versa Code

1. What are the common symptoms of OBDII code P0122 on a 2011 Nissan Versa?

- Common symptoms include poor acceleration, lack of power, rough idling, stalling, and in some cases, the vehicle may go into "limp mode."

2. What does the OBDII code P0122 mean on a 2011 Nissan Versa?

- The code P0122 indicates that the Throttle Position Sensor/Switch '1' Circuit has a low input. This means the signal from the throttle position sensor is lower than expected by the engine control module.

3. What are the possible causes of OBDII code P0122 on a 2011 Nissan Versa?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, a malfunctioning engine control module, or a mechanical issue with the throttle body.

4. How can I diagnose the OBDII code P0122 on my 2011 Nissan Versa?

- To diagnose OBDII code P0122, you can use a scan tool to read the code and check the throttle position sensor's voltage readings. You may also visually inspect the wiring and connectors for any signs of damage.

5. Can I drive my 2011 Nissan Versa with OBDII code P0122?

- It is not recommended to drive your vehicle with OBDII code P0122 as it can lead to poor performance, potential stalling, and other safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P0122 on my 2011 Nissan Versa?

- The repair for OBDII code P0122 typically involves replacing the throttle position sensor if it's faulty. Additionally, checking and repairing any damaged wiring or connectors in the circuit may be necessary.

7. Will resetting the OBDII code P0122 on my 2011 Nissan Versa make it go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, the code is likely to return. It's important to diagnose and fix the root cause.

8. Can a dirty throttle body cause OBDII code P0122 on a 2011 Nissan Versa?

- While a dirty throttle body may affect the sensor's readings, the code P0122 is specifically related to the throttle position sensor itself or its circuit. Cleaning the throttle body may help improve performance but might not directly resolve the code.

9. Is it safe to continue driving my 2011 Nissan Versa if the throttle position sensor triggers OBDII code P0122?

- It is not advisable to continue driving the vehicle with code P0122, as it can lead to drivability issues and potential safety concerns. It's best to address the problem promptly to ensure safe operation of the vehicle.

10. How much does it typically cost to repair OBDII code P0122 on a 2011 Nissan Versa?

- The cost of repairing OBDII code P0122 can vary depending on the exact cause of the issue. Generally, replacing the throttle position sensor or fixing wiring/connectors can cost anywhere from $100 to $300, including parts and labor.

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