AutoCodes – Nissan – P1574 2004 Nissan Altima Sedan

P1574 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan 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 5,905

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
Cost to Diagnose
FAQs
Comments
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Code P1574 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan - ASCD Vehicle Speed Sensor - AutoCodes.com — P1574 2004 Nissan Altima Sedan Code - ASCD Vehicle Speed Sensor

What does this mean?

What are the Possible Causes of the DTC P1574 2004 Nissan Altima Sedan?

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

How to Fix the DTC P1574 2004 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 P1574 2004 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 P1574 2004 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 P1574 2004 Nissan Altima Sedan Code

What does the OBDII code P1574 mean for a 2004 Nissan Altima Sedan?

The P1574 code indicates a malfunction in the ASCD (Automatic Speed Control Device) vehicle speed sensor circuit, which affects the cruise control system.

What symptoms might I experience with the P1574 code?

Common symptoms include the cruise control not functioning, erratic speedometer readings, or the vehicle's speed control system disabling unexpectedly.

What could cause the P1574 code to trigger?

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

How can I diagnose the P1574 code?

Start by inspecting the vehicle speed sensor and its wiring for damage or corrosion. Use a scan tool to check for related trouble codes and test the sensor's output voltage.

What is the vehicle speed sensor's role in the ASCD system?

The vehicle speed sensor provides real-time speed data to the ASCD control unit, which is essential for maintaining the desired speed during cruise control operation.

What repairs are typically needed for the P1574 code?

Repairs may include replacing a faulty vehicle speed sensor, repairing damaged wiring, or replacing the ASCD control unit if it is determined to be defective.

Can I drive my 2004 Nissan Altima with the P1574 code?

Yes, you can drive the vehicle, but cruise control will not function correctly, and it may affect overall performance if other issues are present.

Is it necessary to clear the OBDII code after repairs?

Yes, after making repairs, you should clear the code using an OBDII scanner and test drive the vehicle to ensure the code does not reappear.

How can I prevent future issues with the ASCD vehicle speed sensor?

Regular maintenance checks of electrical connections and sensors, along with prompt repairs of any diagnosed issues, can help prevent future problems with the ASCD system.