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Engine-Codes – Nissan – P0122 2006 Nissan Pathfinder

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

Quick Answer

The P0122 diagnostic trouble code (DTC) for a 2006 Nissan Pathfinder refers to the Throttle Position Sensor/Switch '1' Circuit Low Input. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Corrosion or poor connection at the TPS. 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 Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Corrosion or poor connection at the TPS.
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 17, 2024
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Code P0122 2006 Nissan Pathfinder Description

The P0122 diagnostic trouble code (DTC) for a 2006 Nissan Pathfinder refers to the Throttle Position Sensor/Switch '1' Circuit Low Input. This code indicates that the engine control module (ECM) has detected a lower than expected voltage from the throttle position sensor (TPS) or its circuit. The TPS is a crucial component that monitors the position of the throttle valve and sends this information to the ECM, which then adjusts fuel delivery and ignition timing accordingly. When the TPS signal is too low, it can lead to poor engine performance, decreased fuel efficiency, and potential drivability issues.

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

Common Causes of P0122 2006 Nissan Pathfinder

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the TPS circuit
  3. Corrosion or poor connection at the TPS
  4. ECM software or hardware issues
  5. Mechanical problems with the throttle body

Symptoms of P0122 2006 Nissan Pathfinder

  1. Rough idling or fluctuating idle speed
  2. Hesitation or jerking during acceleration
  3. Reduced fuel efficiency
  4. Engine stalling or difficulty starting
  5. Illumination of the Check Engine Light

How to Fix P0122 2006 Nissan Pathfinder

  1. Begin by verifying the P0122 code using a diagnostic scanner to confirm the issue.
  2. Inspect the throttle position sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the TPS using a multimeter to check for proper voltage output at different throttle positions.
  4. Replace the throttle position sensor if it fails the voltage test or shows signs of malfunction.
  5. Clear the DTC and reset the ECM to see if the issue has been resolved.

Cost to Fix P0122 2006 Nissan Pathfinder

The typical repair costs for addressing a P0122 code on a 2006 Nissan Pathfinder can range from $100 to $300, depending on the specific cause of the issue and the cost of parts. This estimate includes the price of a new throttle position sensor, any necessary wiring repairs, and labor charges. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to inquire about local rates for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can influence the final cost of the repair.

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 Pathfinder Code

1. What are the common symptoms of OBDII code P0122 in a 2006 Nissan Pathfinder?

- Common symptoms include issues with acceleration, hesitation or stalling when pressing the gas pedal, decreased fuel efficiency, and illuminated Check Engine Light.

2. What does the OBDII code P0122 indicate in a 2006 Nissan Pathfinder?

- The code P0122 indicates a problem with the Throttle Position Sensor/Switch '1' Circuit Low Input in the vehicle's throttle position sensor system.

3. What are the possible causes of OBDII code P0122 in a 2006 Nissan Pathfinder?

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

4. How can I diagnose the root cause of OBDII code P0122 in my 2006 Nissan Pathfinder?

- Diagnosis typically involves checking the throttle position sensor's voltage output with a multimeter, inspecting the sensor's wiring and connectors for damage, and testing the throttle body for proper function.

5. Can I continue driving my 2006 Nissan Pathfinder with OBDII code P0122?

- It is not recommended to continue driving the vehicle with code P0122, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. Is it safe to repair OBDII code P0122 in a 2006 Nissan Pathfinder on my own?

- Depending on your experience and skill level, you may be able to perform the repair yourself. However, seeking assistance from a professional mechanic is recommended for proper diagnosis and repair.

7. What are some possible repair tips for resolving OBDII code P0122 in a 2006 Nissan Pathfinder?

- Repair tips may include replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning the throttle body, and resetting the ECM after repairs are completed.

8. How much does it typically cost to repair OBDII code P0122 in a 2006 Nissan Pathfinder?

- The cost of repairs can vary depending on the root cause of the issue. Replacing a throttle position sensor may cost between $100 to $300, while more extensive repairs could be more expensive.

9. Can resetting the Check Engine Light resolve OBDII code P0122 temporarily in a 2006 Nissan Pathfinder?

- Resetting the Check Engine Light may temporarily clear the code, but it will likely return if the underlying issue causing code P0122 is not addressed and resolved.

10. How often should the throttle position sensor be inspected or replaced in a 2006 Nissan Pathfinder to prevent OBDII code P0122?

- Regular maintenance checks, such as during scheduled tune-ups or if symptoms arise, can help prevent issues with the throttle position sensor and potential OBDII code P0122 occurrences.

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