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Engine-Codes – Nissan – P0122 2010 Nissan Versa

P0122 2010 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The P0122 diagnostic trouble code (DTC) for a 2010 Nissan Versa refers to the Throttle Position Sensor/Switch '1' Circuit Low Input. Common causes include Faulty throttle position sensor, Wiring issues or poor connections in the TPS circuit, Corrosion or contamination in the TPS connector. 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 2010 Nissan Versa indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Wiring issues or poor connections in the TPS circuit, Corrosion or contamination in the TPS connector.
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 Aug 19, 2024
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Code P0122 2010 Nissan Versa Description

The P0122 diagnostic trouble code (DTC) for a 2010 Nissan Versa refers to the Throttle Position Sensor/Switch '1' Circuit Low Input. This code indicates that the voltage input from the throttle position sensor (TPS) or its circuit is lower than the expected range. The TPS is a crucial component that monitors the position of the throttle valve and sends this information to the engine control module (ECM) to adjust fuel delivery and ignition timing. When the TPS signal is too low, it can lead to poor engine performance, fuel inefficiency, and potential drivability issues.

OBDII Code P0122 2010 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit Low Input
P0122 2010 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Common Causes of P0122 2010 Nissan Versa

  1. Faulty throttle position sensor
  2. Wiring issues or poor connections in the TPS circuit
  3. Corrosion or contamination in the TPS connector
  4. ECM software or hardware problems
  5. Environmental factors such as extreme temperatures affecting sensor performance

Symptoms of P0122 2010 Nissan Versa

  1. Reduced engine power or acceleration
  2. Rough idling or stalling
  3. Poor fuel efficiency
  4. Difficulty shifting gears
  5. Illumination of the Check Engine Light

How to Fix P0122 2010 Nissan Versa

  1. Begin by diagnosing the TPS using a digital multimeter to check for proper voltage readings.
  2. Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections.
  3. Test the TPS sensor for proper operation and replace if necessary.
  4. Clear the fault codes from the ECM using a scan tool and perform a test drive to ensure the issue is resolved.
  5. If the problem persists, further diagnostic tests may be required to identify any underlying issues with the ECM or other related components.

Cost to Fix P0122 2010 Nissan Versa

The cost of repairing a Throttle Position Sensor/Switch '1' Circuit Low Input code on a 2010 Nissan Versa can vary depending on the specific cause of the issue. In general, the replacement of a faulty TPS sensor can range from $50 to $200, while labor costs at an auto repair shop may add another $80 to $150 per hour. Additional diagnostic tests or repairs could increase the total cost. It's recommended to consult with a certified mechanic or dealership for a precise estimate based on the vehicle's condition and location.

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 2010 Nissan Versa Code

1. What are the common symptoms of OBDII code P0122 on a 2010 Nissan Versa?

- Common symptoms include poor acceleration, reduced engine power, stalling, rough idling, and the vehicle going into "limp mode."

2. What does the OBDII code P0122 indicate in a 2010 Nissan Versa?

- OBDII code P0122 in a 2010 Nissan Versa indicates that the Throttle Position Sensor/Switch '1' Circuit is registering a low input signal.

3. What are the possible causes of the Throttle Position Sensor/Switch '1' Circuit Low Input code on a 2010 Nissan Versa?

- The code P0122 on a 2010 Nissan Versa can be triggered by a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning throttle body, or a problem with the engine control module (ECM).

4. How can I diagnose the OBDII code P0122 on my 2010 Nissan Versa?

- To diagnose code P0122, you can use an OBDII scanner to read the code and check for any related codes. You should also inspect the throttle position sensor, wiring, and connectors for any visible damage.

5. Can I drive my 2010 Nissan Versa with the P0122 code?

- It is not recommended to drive your 2010 Nissan Versa with the P0122 code as it can lead to poor engine performance and potential safety issues due to reduced power or stalling.

6. How can I repair the Throttle Position Sensor/Switch '1' Circuit Low Input code on my 2010 Nissan Versa?

- Repairing the P0122 code may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, cleaning the throttle body, or reprogramming the ECM.

7. Is it necessary to reset the OBDII code P0122 after repairing the issue on my 2010 Nissan Versa?

- Yes, it is recommended to reset the OBDII code P0122 using an OBDII scanner after fixing the underlying issue. This will clear the code and allow you to monitor if the problem reoccurs.

8. Can a dirty throttle body cause the P0122 code on a 2010 Nissan Versa?

- Yes, a dirty throttle body can cause the P0122 code on a 2010 Nissan Versa as it can affect the proper functioning of the throttle position sensor, leading to a low input signal.

9. How much does it cost to repair the Throttle Position Sensor/Switch '1' Circuit Low Input code on a 2010 Nissan Versa?

- The cost of repairing the P0122 code on a 2010 Nissan Versa can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can I replace the throttle position sensor on my 2010 Nissan Versa myself?

- If you have the necessary tools and mechanical skills, you can replace the throttle position sensor on your 2010 Nissan Versa yourself. However, if you are unsure, it's recommended to seek professional help to ensure proper installation.

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