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P1574 2003 Nissan Altima Sedan Code - ASCD Vehicle Speed Sensor

Quick Answer

The P1574 diagnostic trouble code (DTC) in a 2003 Nissan Altima Sedan refers to an issue with the Automatic Speed Control Device (ASCD) Vehicle Speed Sensor. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, ASCD control unit malfunction. 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
P1574 2003 Nissan Altima Sedan indicates ASCD Vehicle Speed Sensor.
Common causes
Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, ASCD control unit malfunction.
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 P1574 2003 Nissan Altima Sedan Description

The P1574 diagnostic trouble code (DTC) in a 2003 Nissan Altima Sedan refers to an issue with the Automatic Speed Control Device (ASCD) Vehicle Speed Sensor. The ASCD system is responsible for maintaining a constant speed set by the driver, similar to cruise control. The vehicle speed sensor plays a crucial role in this system by providing the necessary data to control the vehicle's speed accurately.

OBDII Code P1574 2003 Nissan Altima Sedan - ASCD Vehicle Speed Sensor
P1574 2003 Nissan Altima Sedan Code - ASCD Vehicle Speed Sensor

Common Causes of P1574 2003 Nissan Altima Sedan

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors
  3. ASCD control unit malfunction
  4. Corrosion or debris affecting sensor operation
  5. Electrical issues within the ASCD system

Symptoms of P1574 2003 Nissan Altima Sedan

  1. Inconsistent speed control
  2. Surging or hesitation during acceleration or deceleration
  3. Inability to maintain a set speed
  4. ASCD system not engaging
  5. Check Engine Light illuminated

How to Fix P1574 2003 Nissan Altima Sedan

  1. Begin by diagnosing the specific cause of the P1574 code using a diagnostic scanner.
  2. Inspect the vehicle speed sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the vehicle speed sensor's operation and replace if necessary.
  4. Check the ASCD control unit for proper function and replace if faulty.
  5. Clear the DTC and test drive the vehicle to ensure the ASCD system operates correctly.

Cost to Fix P1574 2003 Nissan Altima Sedan

The cost to repair the ASCD Vehicle Speed Sensor issue can vary depending on the specific cause of the problem. Typically, the replacement of a vehicle speed sensor can range from $100 to $200, while labor costs may add another $80 to $150 per hour. If additional components such as wiring or the ASCD control unit need to be replaced, the total repair cost could increase. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and repair needed. Labor rates at auto repair shops can vary based on location, vehicle make and model, and other factors.

When is the Code Detected?

ECM detects a difference between two vehicle speed signals is out of the specified range.

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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 P1574 2003 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1574 on a 2003 Nissan Altima Sedan?

- Common symptoms include the cruise control system not working properly, the vehicle stalling or hesitating, and the speedometer behaving erratically.

2. What does the OBDII code P1574 on a 2003 Nissan Altima Sedan indicate?

- This code indicates an issue with the ASCD (Automatic Speed Control Device) vehicle speed sensor.

3. What are the possible causes of OBDII code P1574 on a 2003 Nissan Altima Sedan?

- Possible causes include a faulty vehicle speed sensor, damaged wiring or connectors in the ASCD circuit, or a malfunctioning ASCD control unit.

4. How can I diagnose the cause of OBDII code P1574 on my 2003 Nissan Altima Sedan?

- Diagnosis typically involves checking the vehicle speed sensor for proper operation, inspecting the wiring and connectors for damage, and testing the ASCD control unit for faults.

5. Can I still drive my 2003 Nissan Altima Sedan with OBDII code P1574?

- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent further damage to the ASCD system and ensure proper vehicle performance.

6. How can I repair OBDII code P1574 on a 2003 Nissan Altima Sedan?

- Repair may involve replacing the faulty vehicle speed sensor, repairing damaged wiring or connectors, or replacing the ASCD control unit if necessary.

7. Is it possible to reset OBDII code P1574 on a 2003 Nissan Altima Sedan without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is important to address the root cause to prevent the code from reappearing and ensure proper ASCD system functionality.

8. How much does it typically cost to repair OBDII code P1574 on a 2003 Nissan Altima Sedan?

- The cost of repair can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

9. Are there any preventive maintenance tips to avoid OBDII code P1574 on a 2003 Nissan Altima Sedan?

- Regularly inspecting and maintaining the ASCD system components, such as the vehicle speed sensor and wiring, can help prevent issues that may trigger this code.

10. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P1574 on a 2003 Nissan Altima Sedan?

- Depending on the specific issue, a DIY enthusiast may be able to diagnose and repair OBDII code P1574 by following online guides or service manuals, but more complex issues may require professional assistance.

Discuss the causes and fixes for P1574 2003 Nissan Altima Sedan OBDII Code

Submit a New Comment

  • Where is the location?

    Reply to Comment

  • What part? Unfortunately P1574 doesn't give you the exact part that have failed. More tests needs to be done to find what the problem is.

    Does the speedometer works? any other symptoms?

    Reply to Comment