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Engine-Codes – Nissan – P1128 2004 Nissan Maxima

P1128 2004 Nissan Maxima Code - Throttle Control Motor Circuit Short

Quick Answer

The P1128 code on a 2004 Nissan Maxima indicates a problem with the 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 2004 Nissan Maxima 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 17, 2024
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Code P1128 2004 Nissan Maxima Description

The P1128 code on a 2004 Nissan Maxima indicates a problem with the Throttle Control Motor Circuit Short. This code is specifically related to the electronic throttle control system in the vehicle. The throttle control motor is responsible for controlling the throttle plate opening to regulate the airflow into the engine, which ultimately affects the engine's performance and fuel efficiency.

OBDII Code P1128 2004 Nissan Maxima - Throttle Control Motor Circuit Short
P1128 2004 Nissan Maxima Code - Throttle Control Motor Circuit Short

Common Causes of P1128 2004 Nissan Maxima

  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. Issues with the Engine Control Module (ECM)
  5. Environmental factors such as moisture or debris affecting the circuit

Symptoms of P1128 2004 Nissan Maxima

  1. Reduced engine power
  2. Engine stalling or hesitation
  3. Difficulty accelerating
  4. Illuminated Check Engine Light
  5. Poor fuel efficiency

How to Fix P1128 2004 Nissan Maxima

  1. Diagnose the issue using a scan tool to confirm the P1128 code and identify the specific cause of the problem.
  2. Inspect the throttle control motor and its wiring for any visible damage, corrosion, or loose connections.
  3. Test the throttle control motor circuit for continuity and resistance to pinpoint the location of the short circuit.
  4. Replace the faulty throttle control motor or repair any damaged wiring or connections.
  5. Clear the code from the ECM's memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1128 2004 Nissan Maxima

The cost of repairing a P1128 code on a 2004 Nissan Maxima can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair cost for this type of problem can range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates can vary, so it's recommended to get quotes from local auto repair shops for 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 2004 Nissan Maxima Code

1. What are the common symptoms of OBDII code P1128 in a 2004 Nissan Maxima?

The common symptoms of OBDII code P1128 in a 2004 Nissan Maxima include poor engine performance, stalling, rough idling, and a noticeable drop in fuel efficiency.

2. What does the OBDII code P1128 in a 2004 Nissan Maxima indicate?

OBDII code P1128 in a 2004 Nissan Maxima indicates a potential issue with the Throttle Control Motor Circuit Short.

3. What are some possible causes of OBDII code P1128 in a 2004 Nissan Maxima?

Possible causes of OBDII code P1128 in a 2004 Nissan Maxima include a faulty throttle control motor, damaged wiring or connectors in the throttle control system, or a malfunctioning throttle position sensor.

4. How can I diagnose the Throttle Control Motor Circuit Short in a 2004 Nissan Maxima?

To diagnose the Throttle Control Motor Circuit Short in a 2004 Nissan Maxima, you can use an OBDII scanner to read the trouble codes, visually inspect the throttle control motor and related components, and perform continuity tests on the wiring.

5. Is it safe to continue driving a 2004 Nissan Maxima with OBDII code P1128?

It is not recommended to continue driving a 2004 Nissan Maxima with OBDII code P1128, as it can lead to further damage to the engine and potentially compromise vehicle safety.

6. How can I repair OBDII code P1128 in a 2004 Nissan Maxima?

To repair OBDII code P1128 in a 2004 Nissan Maxima, you may need to replace the throttle control motor, repair or replace damaged wiring or connectors, or recalibrate the throttle position sensor.

7. Can a DIY enthusiast fix OBDII code P1128 in a 2004 Nissan Maxima?

While some DIY enthusiasts may be able to diagnose and repair OBDII code P1128 in a 2004 Nissan Maxima, it is recommended to seek professional help for accurate diagnosis and proper repair.

8. How much does it cost to fix OBDII code P1128 in a 2004 Nissan Maxima?

The cost to fix OBDII code P1128 in a 2004 Nissan Maxima can vary depending on the extent of the issue and the parts and labor required for the repair. It is advisable to get a quote from a trusted mechanic.

9. Can a bad throttle control motor cause OBDII code P1128 in a 2004 Nissan Maxima?

Yes, a bad throttle control motor can cause OBDII code P1128 in a 2004 Nissan Maxima, as it can lead to a short circuit in the throttle control motor circuit.

10. How often does OBDII code P1128 occur in a 2004 Nissan Maxima?

OBDII code P1128 in a 2004 Nissan Maxima can occur due to various reasons, and its frequency can vary depending on the maintenance and driving habits of the vehicle.

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