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Engine-Codes – Nissan – P0122 2006 Nissan Maxima

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

Quick Answer

The P0122 diagnostic trouble code (DTC) for a 2006 Nissan Maxima indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a low input signal. Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors in the TPS circuit, Issues with the ECM. 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 Maxima indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors in the TPS circuit, Issues with the ECM.
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 Maxima Description

The P0122 diagnostic trouble code (DTC) for a 2006 Nissan Maxima indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a low input signal. The throttle position sensor (TPS) is a crucial component of the engine management 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 and efficiency.

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

Common Causes of P0122 2006 Nissan Maxima

  1. Faulty throttle position sensor.
  2. Damaged or corroded wiring/connectors in the TPS circuit.
  3. Issues with the ECM.
  4. Poor electrical connection or ground.
  5. Environmental factors such as moisture or debris affecting the TPS.

Symptoms of P0122 2006 Nissan Maxima

  1. Poor acceleration or hesitation when pressing the gas pedal.
  2. Rough idling or stalling at idle.
  3. Reduced fuel efficiency.
  4. Check Engine Light illuminated on the dashboard.
  5. Limp mode activation, limiting engine power.

How to Fix P0122 2006 Nissan Maxima

  1. Begin by conducting a thorough inspection of the throttle position sensor, wiring, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the TPS for proper voltage output according to manufacturer specifications.
  3. If the TPS is faulty, replace it with a new, OEM-quality sensor.
  4. Repair or replace any damaged wiring or connectors in the TPS circuit.
  5. Clear the DTC using a scan tool and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0122 2006 Nissan Maxima

The typical repair costs for addressing a P0122 code on a 2006 Nissan Maxima can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence the final repair costs. For a more accurate estimate, it's recommended to consult with a local auto repair shop.

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 Maxima Code

1. What does OBDII code P0122 on a 2006 Nissan Maxima mean?

The code P0122 indicates a low input signal from the throttle position sensor/switch '1' circuit in the vehicle's engine control module.

2. What are common symptoms associated with OBDII code P0122 in a 2006 Nissan Maxima?

Common symptoms include reduced engine power, hesitation or jerking during acceleration, poor fuel efficiency, and the vehicle going into "limp mode."

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

Potential causes of code P0122 include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning engine control module, or a problem with the throttle body.

4. How can I diagnose the issue causing OBDII code P0122 in my 2006 Nissan Maxima?

Diagnosis typically involves checking the throttle position sensor's voltage output, inspecting the sensor's wiring and connectors for damage, and testing the throttle body for proper operation.

5. Can I still drive my 2006 Nissan Maxima with OBDII code P0122?

It is not recommended to drive the vehicle with code P0122, as it can lead to further damage and potentially unsafe driving conditions. It is best to address the issue promptly.

6. What are some repair tips for resolving OBDII code P0122 in a 2006 Nissan Maxima?

Repair tips may include replacing the throttle position sensor, repairing any damaged wiring or connectors, resetting the engine control module, or cleaning the throttle body to address the issue.

7. Is it possible to reset OBDII code P0122 in a 2006 Nissan Maxima without fixing the underlying issue?

While clearing the code may temporarily turn off the check engine light, it will not fix the underlying problem causing the code to appear. The issue should be properly diagnosed and repaired.

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

The cost of repair can vary depending on the specific cause of the issue and whether you choose to address it yourself or take it to a mechanic. Costs may range from a few hundred to over a thousand dollars.

9. Can a DIY enthusiast fix OBDII code P0122 in a 2006 Nissan Maxima?

Depending on their skill level and access to tools, a DIY enthusiast may be able to address the issue themselves by following repair guides or consulting with experts. However, if unsure, it's best to seek professional help.

10. How urgent is it to address OBDII code P0122 in a 2006 Nissan Maxima?

It is important to address code P0122 promptly to prevent further damage to the vehicle and ensure safe driving conditions. Ignoring the issue can lead to more severe problems down the line.

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