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P1122 2005 Nissan Maxima Code - Electric Throttle Control Performance Problem

Quick Answer

The P1122 diagnostic trouble code (DTC) for a 2005 Nissan Maxima indicates an Electric Throttle Control Performance Problem. Common causes include Faulty throttle position sensor, Wiring or connector issues in the electric throttle control system, Malfunctioning throttle body. 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
P1122 2005 Nissan Maxima indicates Electric Throttle Control Performance Problem.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the electric throttle control system, Malfunctioning throttle body.
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 07, 2024
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Code P1122 2005 Nissan Maxima Description

The P1122 diagnostic trouble code (DTC) for a 2005 Nissan Maxima indicates an Electric Throttle Control Performance Problem. In simpler terms, this means that the engine control module (ECM) has detected an issue with the electric throttle control system, which is responsible for regulating the airflow into the engine. This system plays a crucial role in the overall performance and efficiency of the vehicle.

OBDII Code P1122 2005 Nissan Maxima - Electric Throttle Control Performance Problem
P1122 2005 Nissan Maxima Code - Electric Throttle Control Performance Problem

Common Causes of P1122 2005 Nissan Maxima

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the electric throttle control system
  3. Malfunctioning throttle body
  4. ECM software or programming issues
  5. Environmental factors such as water or debris affecting the throttle components

Symptoms of P1122 2005 Nissan Maxima

  1. Unresponsive throttle or delayed response when pressing the accelerator pedal
  2. Rough idling or engine misfires
  3. Reduced engine power or acceleration
  4. Stalling or difficulty starting the vehicle
  5. Decreased fuel efficiency

How to Fix P1122 2005 Nissan Maxima

  1. Begin by conducting a thorough inspection of the electric throttle control system, checking for any visible damage or loose connections.
  2. Use a diagnostic tool to retrieve the specific trouble codes stored in the ECM and identify the underlying cause of the issue.
  3. Test the throttle position sensor and other relevant components to determine if they are functioning correctly.
  4. If a faulty component is identified, replace it with a new part that meets the manufacturer's specifications.
  5. Clear the DTCs from the ECM memory and perform a test drive to ensure that the issue has been resolved.

Cost to Fix P1122 2005 Nissan Maxima

The cost of repairing a P1122 Electric Throttle Control Performance Problem in a 2005 Nissan Maxima can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair cost for this type of problem can range from $200 to $600, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it is advisable to obtain quotes from multiple shops to ensure a fair price. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often offer more competitive pricing.

What does this mean?

Tech Notes for P1122 2005 Nissan Maxima

Start by performing the "Idle Air Volume Learning Procedure", if the problem persists the Electric Throttle Control Actuator may need to be replaced.

When is the Code Detected?

Electric throttle control function does not operate properly.

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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 P1122 2005 Nissan Maxima Code

1. What does the OBDII code P1122 mean on a 2005 Nissan Maxima?

P1122 indicates an Electric Throttle Control Performance Problem, meaning there’s an issue with the throttle body or its related components in the electronic throttle control system.

2. What are common symptoms of a P1122 code in a 2005 Nissan Maxima?

Symptoms may include poor acceleration, engine hesitation, stalling, rough idle, or the throttle not responding to the accelerator pedal.

3. What causes the P1122 code on a 2005 Nissan Maxima?

Common causes include a faulty throttle body, a malfunctioning throttle position sensor, wiring or connector issues, or a failing electronic throttle control actuator.

4. Can a dirty throttle body cause a P1122 code?

Yes, carbon buildup or debris in the throttle body can restrict airflow or interfere with the throttle plate's operation, potentially triggering the P1122 code.

5. How can I diagnose a P1122 code on a 2005 Nissan Maxima?

Start by inspecting the throttle body for dirt or damage, check the wiring and connectors for corrosion or damage, and use a scan tool to verify throttle position sensor readings.

6. Is it safe to drive with a P1122 code on the 2005 Nissan Maxima?

Driving with a P1122 code is not recommended, as the throttle system may behave unpredictably, leading to potential safety risks such as stalling or lack of acceleration.

7. How do I fix the P1122 code on a 2005 Nissan Maxima?

Fixes may include cleaning or replacing the throttle body, repairing damaged wiring or connectors, or replacing the throttle position sensor or electronic throttle control actuator.

8. Can a P1122 code be caused by a weak battery?

Yes, low voltage from a weak or failing battery can affect the electronic throttle control system and potentially trigger the P1122 code.

9. Do I need to replace the throttle body to fix the P1122 code?

Not always. Cleaning the throttle body or repairing wiring issues may resolve the problem. Replacement is only necessary if the throttle body is confirmed to be faulty.

10. Will clearing the P1122 code fix the problem?

Clearing the code will remove it temporarily, but if the underlying issue isn’t fixed, the code will return, and the symptoms will persist.

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