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Engine-Codes – Nissan – P1128 2005 Nissan Altima Sedan

P1128 2005 Nissan Altima Sedan Code - Throttle Control Motor Circuit Short

Quick Answer

The P1128 code for a 2005 Nissan Altima Sedan indicates a Throttle Control Motor Circuit Short. Common causes include Faulty throttle control motor, Wiring issues or shorts in the throttle control motor circuit, Corrosion or poor connections in the circuit. 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
P1128 2005 Nissan Altima Sedan indicates Throttle Control Motor Circuit Short.
Common causes
Common causes include Faulty throttle control motor, Wiring issues or shorts in the throttle control motor circuit, Corrosion or poor connections in the circuit.
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 05, 2024
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Code P1128 2005 Nissan Altima Sedan Description

The P1128 code for a 2005 Nissan Altima Sedan indicates a Throttle Control Motor Circuit Short. This means that there is a problem with the circuit that controls the throttle motor in the vehicle. The throttle control motor is responsible for regulating the amount of air entering the engine, which is crucial for maintaining the proper air-fuel mixture for combustion. A short in this circuit can lead to issues with engine performance, fuel efficiency, and overall drivability.

OBDII Code P1128 2005 Nissan Altima Sedan - Throttle Control Motor Circuit Short
P1128 2005 Nissan Altima Sedan Code - Throttle Control Motor Circuit Short

Common Causes of P1128 2005 Nissan Altima Sedan

  1. Faulty throttle control motor
  2. Wiring issues or shorts in the throttle control motor circuit
  3. Corrosion or poor connections in the circuit
  4. Electronic control module (ECM) malfunction
  5. Throttle position sensor (TPS) failure

Symptoms of P1128 2005 Nissan Altima Sedan

  1. Engine stalling or hesitation
  2. Reduced engine power
  3. Difficulty accelerating
  4. Rough idling
  5. Check Engine Light illuminated

How to Fix P1128 2005 Nissan Altima Sedan

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and inspecting the throttle control motor circuit for any visible damage.
  2. Test the throttle control motor and other related components for proper functionality.
  3. Replace the faulty throttle control motor or repair any wiring issues in the circuit.
  4. Clear the trouble code from the ECM and test drive the vehicle to ensure the issue is resolved.
  5. Perform a throttle body relearn procedure to recalibrate the throttle control system.

Cost to Fix P1128 2005 Nissan Altima Sedan

The cost of repairing a P1128 code on a 2005 Nissan Altima Sedan can vary depending on the specific issue and the labor rates in your area. Typically, the cost of replacing a throttle control motor can range from $200 to $500, while addressing wiring issues or other related components may increase the cost. Including parts and labor, the total repair cost could be between $300 and $800. It's recommended to get quotes from local auto repair shops to get a more accurate estimate.

When is the Code Detected?

Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor.

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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 P1128 2005 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1128 in a 2005 Nissan Altima Sedan?

- Common symptoms include reduced engine power, stalling, rough idling, and the Check Engine light illuminated.

2. What does the OBDII code P1128 in a 2005 Nissan Altima Sedan indicate?

- This code indicates a Throttle Control Motor Circuit Short, meaning there is a problem with the circuit controlling the throttle motor.

3. What are the possible causes of OBDII code P1128 in a 2005 Nissan Altima Sedan?

- Possible causes include a faulty throttle control motor, damaged wiring or connectors in the circuit, or a failed throttle position sensor.

4. How can I diagnose the issue causing OBDII code P1128 in my 2005 Nissan Altima Sedan?

- Diagnose by checking the throttle control motor and its circuit for any visible damage, testing the throttle position sensor, and inspecting the wiring for shorts.

5. Can I still drive my 2005 Nissan Altima Sedan with OBDII code P1128 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to poor engine performance and potential safety hazards.

6. How can I repair OBDII code P1128 in my 2005 Nissan Altima Sedan?

- Repair involves replacing the faulty throttle control motor, repairing or replacing damaged wiring or connectors, and resetting the Check Engine light.

7. Is it possible to reset OBDII code P1128 in a 2005 Nissan Altima Sedan without fixing the underlying issue?

- While resetting the code may temporarily turn off the Check Engine light, the issue causing the code will persist and may lead to further problems if left unresolved.

8. Can a DIY enthusiast fix OBDII code P1128 in a 2005 Nissan Altima Sedan?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code, but it is recommended to seek professional help for complex issues.

9. How much does it typically cost to repair OBDII code P1128 in a 2005 Nissan Altima Sedan at a mechanic?

- Repair costs can vary depending on the specific issue and labor rates, but expect to pay anywhere from $200 to $500 for parts and labor.

10. Are there any preventive measures to avoid OBDII code P1128 in a 2005 Nissan Altima Sedan?

- Regular maintenance checks, such as inspecting the throttle system components and addressing any issues promptly, can help prevent the occurrence of this code.

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