AutoCodes – Nissan – P1128 2005 Nissan Altima Sedan

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

Quick Answer

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Faulty Throttle Control Motor, Throttle Control Motor harness is open or shorted, Throttle Control Motor circuit poor electrical connection. 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, Throttle Control Motor harness is open or shorted, Throttle Control Motor circuit poor electrical connection.
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.

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Code Popularity 2,198

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 26, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1128 2005 Nissan Altima Sedan Description

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

OBDII Code P1128 2005 Nissan Altima Sedan - Throttle Control Motor Circuit Short - AutoCodes.com — P1128 2005 Nissan Altima Sedan Code - Throttle Control Motor Circuit Short

What does this mean?

What are the Possible Causes of the DTC P1128 2005 Nissan Altima Sedan?

Faulty Throttle Control Motor
Throttle Control Motor harness is open or shorted
Throttle Control Motor circuit poor electrical connection

How to Fix the DTC P1128 2005 Nissan Altima Sedan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1128 2005 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1128 2005 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 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.