Engine-CodesGeneric – B1758

B1758 Code - Seat Driver Rear Down Circuit Open

Quick Answer

The diagnostic trouble code B1758 indicates that there is an issue with the Seat Driver Rear Down Circuit being open. Common causes include Damaged wiring or connectors in the seat adjustment system, Loose connections in the electrical circuit, Faulty control module for the seat adjustment system. 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
B1758 indicates Seat Driver Rear Down Circuit Open.
Common causes
Common causes include Damaged wiring or connectors in the seat adjustment system, Loose connections in the electrical circuit, Faulty control module for the seat adjustment system.
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 17, 2024
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Code B1758 Description

The diagnostic trouble code B1758 indicates that there is an issue with the Seat Driver Rear Down Circuit being open. This means that there is an interruption in the electrical circuit that controls the movement of the driver's rear seat in a downward direction. This can affect the functionality of the seat adjustment system, preventing the driver from adjusting the rear of the seat to their desired position.

OBDII Code B1758 - Seat Driver Rear Down Circuit Open
B1758 Code - Seat Driver Rear Down Circuit Open

Common Causes of B1758

  1. Damaged wiring or connectors in the seat adjustment system.
  2. Loose connections in the electrical circuit.
  3. Faulty control module for the seat adjustment system.
  4. Corrosion in the electrical components of the system.
  5. Physical obstruction preventing the seat from moving downward.

Symptoms of B1758

  1. Inability to adjust the rear of the driver's seat downward.
  2. Unusual noises coming from the seat adjustment system.
  3. Erratic movement of the driver's seat.
  4. Warning light on the dashboard related to the seat adjustment system.

How to Fix B1758

  1. Begin by conducting a visual inspection of the wiring and connectors in the seat adjustment system to look for any signs of damage or corrosion.
  2. Use a multimeter to test the continuity of the wiring and connectors to identify any open circuits.
  3. Check the control module for any signs of damage or malfunction and replace if necessary.
  4. Clear any physical obstructions that may be preventing the seat from moving downward.
  5. Once the issue has been identified and resolved, clear the diagnostic trouble code from the vehicle's system to ensure the warning light is no longer illuminated.

Cost to Fix B1758

The cost of repairing the Seat Driver Rear Down Circuit Open issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair can range from $50 to $200, while the labor costs can range from $100 to $300. Overall, the total repair cost for this issue is typically between $150 and $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. It is recommended to consult with a qualified mechanic to get a more accurate cost estimate for this repair.

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Code B1758 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.

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