AutoCodes – Scion – C1572 Scion

C1572 Scion Code - Vehicle Speed Signal Malfunction

Quick Answer

The Power Steering ECU receives vehicle speed signals from the Skid Control ECU via CAN communication. Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor 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: C1572 Scion indicates Vehicle Speed Signal Malfunction.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor 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.

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Code Popularity 740

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 Nov 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1572 Scion Description

The Power Steering ECU receives vehicle speed signals from the Skid Control ECU via CAN communication. The ECU provides appropriate assisting force in accordance with the vehicle speed, based on the signals. If the ECU detects this Diagnostic Trouble Code (DTC), it adjusts the amount of power assistance for a speed of 100 km/h (62 mph) and continues the system control. The Power Steering ECU monitors the Vehicle Speed Signal. The Power Steering ECU sets the OBDII code when the Vehicle Speed Signal is not to factory specifications.

OBDII Code C1572 Scion - Vehicle Speed Signal Malfunction - AutoCodes.com — C1572 Scion Code - Vehicle Speed Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC C1572 Scion?

Faulty Vehicle Speed Sensor
Vehicle Speed Sensor harness is open or shorted
Vehicle Speed Sensor circuit poor electrical connection
Faulty Skid Control ECU
Faulty Power Steering ECU

How to Fix the DTC C1572 Scion?

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 C1572 Scion 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 C1572 Scion code?

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Need Help with the 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 C1572 Scion Code

1. What are the common symptoms of OBDII code C1572 Scion (Vehicle Speed Signal Malfunction)?

- Common symptoms include a malfunctioning speedometer, erratic speed readings, and potential issues with cruise control.

2. What are the possible causes of OBDII code C1572 in a Scion?

- The code C1572 can be triggered by issues such as a faulty vehicle speed sensor, damaged wiring or connectors, or a problem with the speedometer itself.

3. How can I diagnose the cause of OBDII code C1572 in my Scion?

- Diagnosing the issue typically involves using a scan tool to retrieve the specific code, checking the vehicle speed sensor, inspecting wiring for damage, and testing the speedometer system.

4. Can a faulty vehicle speed sensor cause OBDII code C1572 in a Scion?

- Yes, a malfunctioning vehicle speed sensor is a common cause of code C1572 in Scion vehicles as it directly affects the speed signal being sent to the vehicle's system.

5. Is it safe to continue driving with OBDII code C1572 present in my Scion?

- It is not recommended to drive with OBDII code C1572 as it can lead to inaccurate speed readings, potentially affecting other vehicle systems and safety features.

6. How can I repair OBDII code C1572 in my Scion?

- Repairing code C1572 may involve replacing a faulty vehicle speed sensor, repairing damaged wiring or connectors, or addressing any issues with the speedometer.

7. Can a DIY enthusiast fix OBDII code C1572 in a Scion?

- Depending on the cause of the code, some DIY enthusiasts with automotive repair experience may be able to address the issue by following repair guides and utilizing the necessary tools.

8. Are there any common mistakes to avoid when troubleshooting OBDII code C1572 in a Scion?

- Common mistakes include overlooking simple wiring or connector issues, ignoring the vehicle speed sensor as a potential cause, or failing to properly clear the code after repairs.

9. Will resetting the OBDII code C1572 in my Scion make the issue go away?

- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing code C1572. Proper diagnosis and repair are necessary.

10. Can a mechanic help me diagnose and repair OBDII code C1572 in my Scion?

- Yes, a qualified mechanic with experience in diagnosing and repairing OBDII codes can help identify the specific cause of code C1572 and perform the necessary repairs to resolve the issue.