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P0122 2006 Nissan Altima Sedan Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The P0122 code in a 2006 Nissan Altima Sedan indicates that there is a low input signal from the throttle position sensor or switch '1'. Common causes include Faulty throttle position sensor, Wiring issues or a poor connection in the TPS circuit, Corrosion or dirt buildup on the sensor terminals. 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 2006 Nissan Altima Sedan indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Wiring issues or a poor connection in the TPS circuit, Corrosion or dirt buildup on the sensor terminals.
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 14, 2024
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Code P0122 2006 Nissan Altima Sedan Description

The P0122 code in a 2006 Nissan Altima Sedan indicates that there is a low input signal from the throttle position sensor or switch '1'. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic 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 optimal engine performance.

OBDII Code P0122 2006 Nissan Altima Sedan - Throttle Position Sensor/Switch '1' Circuit Low Input
P0122 2006 Nissan Altima Sedan Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Common Causes of P0122 2006 Nissan Altima Sedan

  1. Faulty throttle position sensor.
  2. Wiring issues or a poor connection in the TPS circuit.
  3. Corrosion or dirt buildup on the sensor terminals.
  4. Issues with the ECM or other related components.
  5. Environmental factors such as extreme temperatures affecting sensor performance.

Symptoms of P0122 2006 Nissan Altima Sedan

  1. Poor acceleration or lack of response when pressing the gas pedal.
  2. Rough idling or stalling when coming to a stop.
  3. Difficulty starting the engine, especially in cold weather.
  4. Decreased fuel efficiency.
  5. Illumination of the Check Engine Light.

How to Fix P0122 2006 Nissan Altima Sedan

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P0122 code and pinpoint the exact cause.
  2. Inspect the throttle position sensor and its wiring for any visible damage, corrosion, or loose connections.
  3. Test the sensor's voltage output using a multimeter to determine if it falls within the acceptable range.
  4. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the error code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0122 2006 Nissan Altima Sedan

The cost of repairing a throttle position sensor issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, replacing a throttle position sensor can cost between $100 and $300 for parts, with additional costs for labor. The total repair cost, including diagnosis time and labor, can range from $150 to $500. It's recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Labor rates typically range from $80 to $150 per hour, but may vary based on location and shop rates.

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 2006 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0122 on a 2006 Nissan Altima Sedan?

- Common symptoms include a lack of power, poor acceleration, rough idling, stalling, and potential issues with shifting gears.

2. What causes the Throttle Position Sensor/Switch '1' Circuit Low Input code on a 2006 Nissan Altima Sedan?

- This code is often triggered by a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module.

3. How can I diagnose the cause of the P0122 code on my 2006 Nissan Altima Sedan?

- You can diagnose the issue by checking the throttle position sensor's voltage output with a multimeter, inspecting the sensor's wiring and connectors for damage, and scanning the vehicle's computer for any related error codes.

4. Can a dirty throttle body cause the P0122 code on a 2006 Nissan Altima Sedan?

- Yes, a dirty throttle body can cause erratic readings from the throttle position sensor, leading to the P0122 code. It is recommended to clean the throttle body as part of the diagnostic process.

5. How can I repair the Throttle Position Sensor/Switch '1' Circuit Low Input code on my 2006 Nissan Altima Sedan?

- Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, and resetting the error code with an OBDII scanner after the repair.

6. Is it safe to continue driving my 2006 Nissan Altima Sedan with the P0122 code?

- It is not recommended to drive the vehicle with the P0122 code present, as it can lead to poor performance, decreased fuel efficiency, and potential safety hazards. It's best to address the issue promptly.

7. Can I reset the P0122 code on my 2006 Nissan Altima Sedan without fixing the underlying issue?

- While you can reset the code using an OBDII scanner, it will likely return if the underlying issue is not repaired. It's important to diagnose and fix the root cause of the problem.

8. How much does it typically cost to repair the Throttle Position Sensor/Switch '1' Circuit Low Input code on a 2006 Nissan Altima Sedan?

- The cost of repair can vary depending on the exact cause of the issue and whether you choose to do the repair yourself or take it to a mechanic. In general, the cost can range from $100 to $300 or more.

9. Can a DIY enthusiast fix the P0122 code on a 2006 Nissan Altima Sedan?

- Yes, if you have the necessary tools, knowledge, and experience, you may be able to diagnose and repair the P0122 code yourself. However, if you are unsure, it's best to consult a professional mechanic.

10. How often does the Throttle Position Sensor/Switch '1' Circuit Low Input code occur in 2006 Nissan Altima Sedans?

- The occurrence of this code can vary, but it is a relatively common issue in vehicles with throttle position sensor problems. Regular maintenance and monitoring can help prevent this code from appearing.

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