Engine-CodesGeneric – B1722

B1722 Code - Seat Driver Rearward Switch Circuit Open

Quick Answer

The B1722 diagnostic trouble code (DTC) indicates that there is an open circuit in the seat driver rearward switch. Common causes include Damaged wiring or connectors in the seat driver rearward switch circuit, Faulty seat driver rearward switch, Corrosion or moisture in the electrical connections. 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
B1722 indicates Seat Driver Rearward Switch Circuit Open.
Common causes
Common causes include Damaged wiring or connectors in the seat driver rearward switch circuit, Faulty seat driver rearward switch, Corrosion or moisture in the electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B1722 Description

The B1722 diagnostic trouble code (DTC) indicates that there is an open circuit in the seat driver rearward switch. This means that there is a break or discontinuity in the electrical connection between the switch and the vehicle's electronic control module (ECM) that monitors and controls the seat adjustment functions. The seat driver rearward switch is responsible for adjusting the position of the driver's seat backward, allowing the driver to find a comfortable driving position.

OBDII Code B1722 - Seat Driver Rearward Switch Circuit Open
B1722 Code - Seat Driver Rearward Switch Circuit Open

Common Causes of B1722

  1. Damaged wiring or connectors in the seat driver rearward switch circuit
  2. Faulty seat driver rearward switch
  3. Corrosion or moisture in the electrical connections
  4. Issues with the ECM or related control modules
  5. Wear and tear from regular use of the seat adjustment function

Symptoms of B1722

  1. Inability to adjust the driver's seat backward
  2. Unresponsive or erratic movement of the driver's seat
  3. Illumination of the seat adjustment warning light on the dashboard
  4. Audible clicking or buzzing sounds when attempting to adjust the seat
  5. Intermittent loss of power to the seat adjustment function

How to Fix B1722

  1. Begin by conducting a visual inspection of the wiring and connectors in the seat driver rearward switch circuit to identify any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the circuit and determine the exact location of the open circuit.
  3. Replace any damaged wiring, connectors, or components in the circuit.
  4. Test the functionality of the seat driver rearward switch and ensure that it is sending the correct signals to the ECM.
  5. Clear the DTC using a diagnostic scanner and verify that the issue has been resolved by testing the seat adjustment function.

Cost to Fix B1722

The typical repair costs for addressing a B1722 code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can add another $100 to $200 to the total bill. Keep in mind that these estimates are approximate and can fluctuate based on the location of the repair shop, the make and model of the vehicle, and the technician's hourly labor rates. It's advisable to obtain quotes from multiple service providers to ensure a competitive price for the repair.

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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 B1722 Code

1. What does the OBDII code B1722 mean?

B1722 indicates an issue with the Seat Driver Rearward Switch Circuit, specifically an open circuit that disrupts its operation.

2. What are common symptoms of the B1722 code?

The driver’s seat may not move backward when using the rearward adjustment switch, and you might notice unresponsiveness or limited seat adjustment functionality.

3. What causes the B1722 Seat Driver Rearward Switch Circuit Open code?

Common causes include a faulty seat adjustment switch, damaged wiring or connectors in the circuit, or a malfunctioning seat motor.

4. Can I still drive my car with the B1722 code?

Yes, the vehicle is still drivable, but you may experience inconvenience due to limited seat adjustment, potentially affecting comfort or driving posture.

5. How do I diagnose the B1722 code?

Start by inspecting the seat rearward switch, wiring, and connectors for damage or loose connections. Use a multimeter to check for continuity and proper voltage in the circuit.

6. How can the B1722 code be fixed?

Repairs may involve replacing the faulty seat adjustment switch, repairing or replacing damaged wiring or connectors, or addressing a defective seat motor.

7. Is the B1722 code related to any other seat adjustment functions?

It typically only affects the rearward adjustment function of the driver’s seat, but further issues in the circuit could impact other seat movements.

8. How much does it cost to fix the B1722 code?

Repair costs vary depending on the issue. Replacing a switch may cost $50-$200, while fixing wiring or replacing the seat motor could cost more.

9. Can I fix the B1722 code myself?

If you’re comfortable with basic electrical diagnostics and repairs, you can attempt to fix loose connections or replace a faulty switch. For complex issues, professional help is recommended.

10. Will clearing the B1722 code solve the issue?

Clearing the code may temporarily remove it from the system, but it will return if the underlying problem is not resolved.

Discuss the causes and fixes for B1722 OBDII Code

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