P1128 2002 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 2002 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.
Code P1128 2002 Nissan Altima Sedan Description
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.
What are the Possible Causes of the DTC P1128 2002 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 2002 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 2002 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 2002 Nissan Altima Sedan code?
Need more information on how to fix the P1128 2002 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1128 2002 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1128 2002 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P1128 in a 2002 Nissan Altima Sedan?
- Common symptoms include poor engine performance, rough idling, stalling, and the Check Engine light illuminating on the dashboard.
2. What does the OBDII code P1128 in a 2002 Nissan Altima Sedan indicate?
- The code P1128 indicates an issue with the Throttle Control Motor Circuit Short.
3. What are the possible causes of OBDII code P1128 in a 2002 Nissan Altima Sedan?
- Possible causes include a faulty throttle control motor, damaged wiring or connectors in the throttle control motor circuit, or a problem with the Engine Control Module (ECM).
4. How can I diagnose the Throttle Control Motor Circuit Short in my 2002 Nissan Altima Sedan?
- Diagnosing this issue typically involves using an OBDII scanner to retrieve the trouble codes, inspecting the throttle control motor and its wiring, and testing the ECM for proper functioning.
5. Is it safe to continue driving my 2002 Nissan Altima Sedan with the P1128 code present?
- It is not recommended to drive the vehicle with the P1128 code present, as it can lead to further damage to the engine or other components.
6. Can I repair the Throttle Control Motor Circuit Short issue in my 2002 Nissan Altima Sedan myself?
- The repair process for the P1128 code may require advanced automotive knowledge and tools, so it is recommended to have a professional mechanic diagnose and repair the issue.
7. How much does it typically cost to repair the Throttle Control Motor Circuit Short in a 2002 Nissan Altima Sedan?
- The cost of repairing the P1128 code can vary depending on the exact cause of the issue, but it may range from $200 to $500 or more, including parts and labor.
8. Will resetting the Check Engine light make the P1128 code go away in my 2002 Nissan Altima Sedan?
- Resetting the Check Engine light will temporarily clear the code, but it will likely reappear if the underlying issue causing the P1128 code is not addressed.
9. Can a faulty Throttle Control Motor affect the fuel efficiency of my 2002 Nissan Altima Sedan?
- Yes, a faulty throttle control motor can lead to decreased fuel efficiency, as it may not properly regulate the air intake into the engine, affecting performance and fuel consumption.
10. How often should I have the throttle control system inspected in my 2002 Nissan Altima Sedan to prevent the P1128 code from reoccurring?
- It is recommended to have the throttle control system inspected during regular maintenance checks or whenever you experience symptoms of poor engine performance to prevent the recurrence of the P1128 code.
Discuss the causes and fixes for P1128 2002 Nissan Altima Sedan OBDII Code
Code P1128 2002 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
