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Engine-Codes – Generic – P1722

P1722 Code - Estimated Vehicle Speed Signal

Quick Answer

The P1722 diagnostic trouble code (DTC) refers to an issue with the Estimated Vehicle Speed Signal. Common causes include Faulty wheel speed sensors, Damaged wiring or connectors, Transmission issues. 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
P1722 indicates Estimated Vehicle Speed Signal.
Common causes
Common causes include Faulty wheel speed sensors, Damaged wiring or connectors, Transmission issues.
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 07, 2024
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Code P1722 Description

The P1722 diagnostic trouble code (DTC) refers to an issue with the Estimated Vehicle Speed Signal. This code indicates that the vehicle's control module has detected a discrepancy between the actual speed of the vehicle and the speed that is being estimated by the vehicle's systems. The Estimated Vehicle Speed Signal is crucial for various systems within the vehicle to operate effectively, including the transmission, ABS, traction control, and cruise control.

OBDII Code P1722 - Estimated Vehicle Speed Signal
P1722 Code - Estimated Vehicle Speed Signal

Common Causes of P1722

  1. Faulty wheel speed sensors
  2. Damaged wiring or connectors
  3. Transmission issues
  4. Malfunctioning control module
  5. Issues with the vehicle's speedometer

Symptoms of P1722

  1. Erratic or incorrect speedometer readings
  2. Transmission shifting issues
  3. ABS or traction control warning lights illuminated on the dashboard
  4. Cruise control not functioning properly
  5. Loss of vehicle stability or control during driving

How to Fix P1722

  1. Perform a diagnostic scan using a OBD-II scanner to retrieve the specific fault codes.
  2. Inspect the wheel speed sensors, wiring, and connectors for any damage or corrosion.
  3. Test the vehicle's transmission for any mechanical or electrical issues.
  4. Check the control module for any faults or malfunctions.
  5. Repair or replace any faulty components identified during the diagnostic process.

Cost to Fix P1722

The typical repair costs for addressing the P1722 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for wheel speed sensors, wiring repairs, or control module replacements can range from $100 to $500 or more. Labor costs at auto repair shops typically range between $80 and $150 per hour. Additional diagnostic time may also be necessary to pinpoint the exact cause of the issue, which can incur extra charges. It is recommended to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of your vehicle.

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Code P1722 Information for Specific Makes

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 P1722 Code

1. What are the common symptoms of OBDII code P1722?

- Common symptoms of OBDII code P1722 include issues with the vehicle's speedometer, erratic speedometer readings, and potential transmission shifting problems.

2. What are the possible causes of OBDII code P1722?

- Possible causes of OBDII code P1722 include a faulty vehicle speed sensor, damaged wiring or connectors related to the speed sensor, or a defective instrument cluster.

3. How can I diagnose the source of OBDII code P1722?

- To diagnose OBDII code P1722, you can use a scan tool to check for any additional related codes, visually inspect the speed sensor and its wiring for damage, and perform a proper diagnostic test of the speed sensor.

4. What are the implications of ignoring OBDII code P1722?

- Ignoring OBDII code P1722 can lead to inaccurate speedometer readings, potential transmission issues, and a lack of critical vehicle speed data for other systems, which can affect overall vehicle performance.

5. Can I repair OBDII code P1722 by replacing the vehicle speed sensor?

- Yes, in many cases, replacing the faulty vehicle speed sensor can resolve OBDII code P1722. However, it's important to ensure proper diagnosis before proceeding with any repairs.

6. Are there any DIY tips for addressing OBDII code P1722?

- DIY tips for addressing OBDII code P1722 include checking the speed sensor wiring for any visible damage, ensuring proper connection of the speed sensor, and consulting the vehicle's service manual for specific troubleshooting steps.

7. Is it safe to continue driving with OBDII code P1722 present?

- It is not recommended to continue driving with OBDII code P1722 present, as it can lead to inaccurate speedometer readings and potential transmission issues, impacting the safety and performance of the vehicle.

8. Can a bad instrument cluster cause OBDII code P1722?

- Yes, a defective instrument cluster can be a potential cause of OBDII code P1722, as the instrument cluster plays a crucial role in receiving and displaying vehicle speed signal data.

9. How long does it typically take to repair OBDII code P1722?

- The repair time for OBDII code P1722 can vary depending on the exact cause of the issue, but it typically takes a few hours to diagnose and address the problem, especially if a speed sensor replacement is required.

10. Should I reset the OBDII code P1722 after making repairs?

- Yes, it is recommended to reset OBDII code P1722 after making the necessary repairs to clear the fault code from the vehicle's system and ensure that the issue has been successfully addressed.

Discuss the causes and fixes for P1722 OBDII Code

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  • i hve a nissan that it crank but cant start,,what can be a problem

    Reply to Comment

  • Unfortunately, there are many things that could cause that problem (e.g. fuel, spark plugs, key). What model and year is your vehicle? What codes do you have?

    Reply to Comment