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Engine-Codes – Nissan – P1122 2002 Nissan Altima Sedan

P1122 2002 Nissan Altima Sedan Code - Electric Throttle Control Performance Problem

Quick Answer

The P1122 code for a 2002 Nissan Altima Sedan indicates an Electric Throttle Control Performance Problem. Common causes include Faulty throttle control module, Malfunctioning throttle position sensor, Wiring issues. 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 2002 Nissan Altima Sedan indicates Electric Throttle Control Performance Problem.
Common causes
Common causes include Faulty throttle control module, Malfunctioning throttle position sensor, Wiring issues.
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 P1122 2002 Nissan Altima Sedan Description

The P1122 code for a 2002 Nissan Altima Sedan indicates an Electric Throttle Control Performance Problem. This code is related to the vehicle's electronic throttle control system, which is responsible for managing the engine's throttle opening. The throttle control module communicates with the engine control module to regulate the throttle position based on driver input. When this code is triggered, it means that the system is not performing as expected, which can lead to a variety of performance issues.

OBDII Code P1122 2002 Nissan Altima Sedan - Electric Throttle Control Performance Problem
P1122 2002 Nissan Altima Sedan Code - Electric Throttle Control Performance Problem

Common Causes of P1122 2002 Nissan Altima Sedan

  1. Faulty throttle control module
  2. Malfunctioning throttle position sensor
  3. Wiring issues
  4. Electronic throttle body problems
  5. Software glitches in the engine control module

Symptoms of P1122 2002 Nissan Altima Sedan

  1. Poor acceleration
  2. Hesitation or stalling when accelerating
  3. Rough idling
  4. Vehicle going into limp mode
  5. Reduced power output

How to Fix P1122 2002 Nissan Altima Sedan

  1. Perform a thorough diagnostic scan to confirm the P1122 code and identify the specific component causing the issue.
  2. Inspect the throttle control module, throttle position sensor, wiring, and electronic throttle body for any signs of damage or malfunction.
  3. Replace the faulty component, whether it be the throttle control module, sensor, wiring, or throttle body.
  4. Clear the diagnostic trouble codes from the engine control module and test drive the vehicle to ensure the issue has been resolved.
  5. Perform a relearn procedure for the electronic throttle control system to recalibrate the components and ensure proper operation.

Cost to Fix P1122 2002 Nissan Altima Sedan

The typical repair costs for addressing a P1122 code on a 2002 Nissan Altima Sedan can vary depending on the specific component that needs to be replaced. On average, the parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $200. Keep in mind that the diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P1122 2002 Nissan Altima Sedan

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



There is a factory service bulletin for the 2002 Nissan Altima:

2002 Nissan Altima Factory Service Bulletin OBDII Code P1122

When is the Code Detected?

Electric throttle control function does not operate properly.

Need more information about the P1122 2002 Nissan Altima Sedan code?

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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 2002 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1122 in a 2002 Nissan Altima Sedan?

- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.

2. What typically causes the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- The code P1122 usually indicates an issue with the electric throttle control system, such as a faulty throttle position sensor or a problem with the throttle actuator.

3. How can I diagnose the OBDII code P1122 in my 2002 Nissan Altima Sedan?

- Diagnosing the code involves using an OBDII scanner to retrieve the code, checking the throttle position sensor and throttle actuator for proper operation, and inspecting wiring for any damage.

4. Can a dirty throttle body cause the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- Yes, a dirty or malfunctioning throttle body can disrupt the operation of the electric throttle control system, leading to the code P1122 being triggered.

5. What are some repair tips for fixing the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- Repair tips may include cleaning the throttle body, replacing the throttle position sensor or throttle actuator, checking and repairing any damaged wiring, and ensuring proper connections.

6. Is it safe to continue driving with the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- It is not recommended to drive the vehicle with the code P1122 present, as it can lead to performance issues and potentially unsafe driving conditions.

7. How much does it typically cost to repair the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- The cost of repairs can vary depending on the specific issue causing the code P1122, but it may involve parts replacement and labor costs, ranging from $200 to $500 or more.

8. Can resetting the OBDII code P1122 in a 2002 Nissan Altima Sedan make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed, it is likely to reappear once the system detects the problem again.

9. Will the OBDII code P1122 in a 2002 Nissan Altima Sedan cause the Check Engine light to stay on?

- Yes, the code P1122 will trigger the Check Engine light to illuminate on the dashboard until the issue is resolved and the code is cleared.

10. How long does it typically take to repair the OBDII code P1122 in a 2002 Nissan Altima Sedan?

- The repair time can vary depending on the specific cause of the code P1122, but it may take a few hours to a full day for diagnosis and repair.

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