Engine-Codes.com
Engine-Codes – Infiniti – P1574 2003 Infiniti G35

P1574 2003 Infiniti G35 Code - ASCD Vehicle Speed Sensor

Quick Answer

The P1574 diagnostic trouble code (DTC) in a 2003 Infiniti G35 indicates an issue with the ASCD (Automatic Speed Control Device) vehicle speed sensor. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, ECM 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 Infiniti G35 indicates ASCD Vehicle Speed Sensor.
Common causes
Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, ECM 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 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1574 2003 Infiniti G35 Description

The P1574 diagnostic trouble code (DTC) in a 2003 Infiniti G35 indicates an issue with the ASCD (Automatic Speed Control Device) 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 accurate speed data to the engine control module (ECM) to adjust throttle position accordingly.

OBDII Code P1574 2003 Infiniti G35 - ASCD Vehicle Speed Sensor
P1574 2003 Infiniti G35 Code - ASCD Vehicle Speed Sensor

Common Causes of P1574 2003 Infiniti G35

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors
  3. ECM malfunction
  4. Corrosion or debris affecting sensor operation
  5. Sensor misalignment or calibration issues

Symptoms of P1574 2003 Infiniti G35

  1. Erratic throttle response
  2. Difficulty maintaining a set speed
  3. Sudden acceleration or deceleration
  4. Hesitation when accelerating
  5. Stalling at low speeds

How to Fix P1574 2003 Infiniti G35

  1. Perform a thorough diagnostic scan to confirm the P1574 code and pinpoint the exact cause of the issue.
  2. Inspect the vehicle speed sensor, wiring, and connectors for any signs of damage or corrosion.
  3. Test the sensor's operation and alignment to ensure accurate speed data is being transmitted to the ECM.
  4. Replace the faulty vehicle speed sensor if necessary, ensuring proper calibration and alignment.
  5. Clear the DTC and test drive the vehicle to verify that the ASCD system is functioning correctly.

Cost to Fix P1574 2003 Infiniti G35

The cost of repairing the ASCD vehicle speed sensor issue in a 2003 Infiniti G35 can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of replacing a vehicle speed sensor ranges from $100 to $250, including parts and labor. Additional costs may apply if wiring or connectors need to be repaired or replaced. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's specific needs. Keep in mind that labor rates can vary significantly, so it's advisable to shop around for the best deal.

What does this mean?

Tech Notes for P1574 2003 Infiniti G35

If P1574 is displayed with U1000, U1001, P0500 or P0605 perform the other trouble diagnosis for U1000, U1001, P0500 or P0605 first.

When is the Code Detected?

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

Need more information about the P1574 2003 Infiniti G35 code?

Need more information on how to fix the P1574 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1574 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

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 Infiniti G35 Code

1. What is OBDII code P1574 in a 2003 Infiniti G35?

The P1574 code in a 2003 Infiniti G35 indicates an issue with the ASCD (Automatic Speed Control Device) vehicle speed sensor.

2. What are the common symptoms of a P1574 code in a 2003 Infiniti G35?

Common symptoms of a P1574 code may include the cruise control not functioning properly or the vehicle experiencing acceleration issues.

3. What causes the P1574 ASCD vehicle speed sensor code in a 2003 Infiniti G35?

The P1574 code in a 2003 Infiniti G35 is typically triggered by a faulty ASCD vehicle speed sensor or issues with the wiring connected to the sensor.

4. How can I diagnose a P1574 code in a 2003 Infiniti G35?

Diagnosing a P1574 code involves using an OBDII scanner to read the code, checking the ASCD vehicle speed sensor for any visible damage, and inspecting the wiring for any issues.

5. Can I still drive my 2003 Infiniti G35 with a P1574 ASCD vehicle speed sensor code?

While it may be possible to drive the vehicle with a P1574 code, it is recommended to address the issue promptly to prevent further damage and ensure proper functioning of the ASCD system.

6. How do I repair a P1574 code in a 2003 Infiniti G35?

Repairing a P1574 code may involve replacing the ASCD vehicle speed sensor, repairing or replacing any damaged wiring, and clearing the code with an OBDII scanner.

7. Can a DIY enthusiast fix a P1574 code in a 2003 Infiniti G35?

If you have experience working on automotive electrical systems, you may be able to address a P1574 code yourself by replacing the ASCD vehicle speed sensor and checking the wiring.

8. Is it necessary to reset the ECU after repairing a P1574 code in a 2003 Infiniti G35?

After repairing a P1574 code, it is recommended to reset the ECU (Engine Control Unit) using an OBDII scanner to clear the code and ensure proper system recalibration.

9. Are there any preventive maintenance tips to avoid a P1574 code in a 2003 Infiniti G35?

Regularly inspecting the ASCD system components, such as the vehicle speed sensor and wiring, can help prevent issues that may trigger a P1574 code in a 2003 Infiniti G35.

10. How much does it typically cost to repair a P1574 ASCD vehicle speed sensor code in a 2003 Infiniti G35?

The cost of repairing a P1574 code can vary depending on the extent of the issue, but it may involve a few hundred dollars for parts and labor at a repair shop.

Discuss the causes and fixes for P1574 2003 Infiniti G35 OBDII Code

Submit a New Comment

Code P1574 2003 Infiniti G35 comments

No comments found for this page.