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Engine-Codes – Scion – C1572 Scion

C1572 Scion Code - Vehicle Speed Signal Malfunction

Quick Answer

The C1572 diagnostic trouble code (DTC) for Scion vehicles indicates a Vehicle Speed Signal Malfunction. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors related to the speed sensor, Corrosion or debris affecting the speed sensor. 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, Damaged wiring or connectors related to the speed sensor, Corrosion or debris affecting the speed sensor.
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 C1572 Scion Description

The C1572 diagnostic trouble code (DTC) for Scion vehicles indicates a Vehicle Speed Signal Malfunction. This code is typically triggered when the vehicle's onboard computer detects an issue with the signal that communicates the speed of the vehicle. The vehicle speed signal is crucial for various systems in the vehicle, including the transmission, ABS, traction control, and cruise control. When this signal malfunctions, it can lead to erratic behavior in these systems, affecting the overall performance and safety of the vehicle.

OBDII Code C1572 Scion - Vehicle Speed Signal Malfunction
C1572 Scion Code - Vehicle Speed Signal Malfunction

Common Causes of C1572 Scion

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors related to the speed sensor
  3. Corrosion or debris affecting the speed sensor
  4. Issues with the vehicle's computer or software programming
  5. Mechanical issues affecting the transmission or wheel hubs

Symptoms of C1572 Scion

  1. Inaccurate speedometer readings
  2. ABS or traction control warning lights illuminated on the dashboard
  3. Erratic shifting in automatic transmissions
  4. Cruise control not engaging or disengaging unexpectedly
  5. Loss of power or acceleration issues

How to Fix C1572 Scion

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific DTC and pinpoint the source of the problem.
  2. Inspect the vehicle speed sensor, wiring, and connectors for any visible damage, corrosion, or debris. Replace or repair any faulty components.
  3. Test the vehicle speed sensor's output using a multimeter to ensure it is functioning within the manufacturer's specifications.
  4. Clear the DTC from the vehicle's computer memory after completing the repair and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostics may be necessary to identify any underlying mechanical issues affecting the transmission or wheel hubs.

Cost to Fix C1572 Scion

The typical repair costs for a Vehicle Speed Signal Malfunction can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive prices.

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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.

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