AutoCodes – Infiniti – P1574 2003 Infiniti G35

P1574 2003 Infiniti G35 Code - ASCD Vehicle Speed Sensor

Quick Answer

The Engine Control Module (ECM) receives two vehicle speed sensor signals via Communication Area Network (CAN) communication line. Common causes include Harness or connectors of the Communication Area Network (CAN) communication line is open or shorted, Combination meter circuit is open or shorted, Faulty Combination meter. 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 Harness or connectors of the Communication Area Network (CAN) communication line is open or shorted, Combination meter circuit is open or shorted, Faulty Combination meter.
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 6,448

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 18, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1574 2003 Infiniti G35 Description

The Engine Control Module (ECM) receives two vehicle speed sensor signals via Communication Area Network (CAN) communication line. One is sent from combination meter, and the other is from TCM (Transmission control module). The ECM uses these signals for Automatic Speed Control Module (ASCD) control.

OBDII Code P1574 2003 Infiniti G35 - ASCD Vehicle Speed Sensor - AutoCodes.com — P1574 2003 Infiniti G35 Code - ASCD Vehicle Speed Sensor

What does this mean?

What are the Possible Causes of the DTC P1574 2003 Infiniti G35?

Harness or connectors of the Communication Area Network (CAN) communication line is open or shorted
Combination meter circuit is open or shorted
Faulty Combination meter
Faulty Vehicle speed sensor
Faulty Transmission Control Module
VDC/TCS/ABS control unit

How to Fix the DTC P1574 2003 Infiniti G35?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1574 2003 Infiniti G35 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.

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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 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.