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Engine-Codes – GMC – B1805 GMC

B1805 GMC Code - Driver Seat Motor Side Bolster Circuit

Quick Answer

The B1805 GMC code indicates a problem with the driver seat motor side bolster circuit. Common causes include Faulty wiring or connectors in the driver seat motor side bolster circuit, Defective seat control module, Failed driver seat motor. 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
B1805 GMC indicates Driver Seat Motor Side Bolster Circuit.
Common causes
Common causes include Faulty wiring or connectors in the driver seat motor side bolster circuit, Defective seat control module, Failed driver seat motor.
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 13, 2024
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Code B1805 GMC Description

The B1805 GMC code indicates a problem with the driver seat motor side bolster circuit. This circuit is responsible for controlling the movement of the side bolster on the driver's seat, which provides additional support and comfort while driving. When this code is triggered, it means that there is a malfunction in the circuit, which can lead to issues with adjusting the side bolster.

OBDII Code B1805 GMC - Driver Seat Motor Side Bolster Circuit
B1805 GMC Code - Driver Seat Motor Side Bolster Circuit

Common Causes of B1805 GMC

  1. Faulty wiring or connectors in the driver seat motor side bolster circuit
  2. Defective seat control module
  3. Failed driver seat motor
  4. Corrosion or water damage in the circuit
  5. Physical obstruction preventing the side bolster from moving smoothly

Symptoms of B1805 GMC

  1. Inability to adjust the side bolster position
  2. Side bolster moving erratically or only in one direction
  3. Unusual noises coming from the seat motor
  4. Warning light illuminated on the dashboard related to the seat system

How to Fix B1805 GMC

  1. Begin by diagnosing the specific cause of the issue using a scan tool to retrieve the B1805 GMC code and testing the components of the driver seat motor side bolster circuit.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace any faulty wiring or connectors.
  3. Test the seat control module and driver seat motor for proper functionality. Replace any components that are found to be defective.
  4. Clear the diagnostic trouble codes from the vehicle's memory using the scan tool.
  5. Test the driver seat motor side bolster circuit to ensure that the issue has been resolved and that the side bolster can be adjusted correctly.

Cost to Fix B1805 GMC

The typical repair costs for addressing the B1805 GMC code can vary depending on the specific cause of the issue. In general, the cost of parts such as wiring, connectors, the seat control module, or the driver seat motor can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour. The total cost of the repair can therefore range from $200 to $800 or more, depending on the extent of the issue and the rates charged by the repair shop. It is advisable to obtain a detailed quote from a qualified mechanic to get a more accurate estimate based on your vehicle's make and model, as well as the local labor rates.

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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 B1805 GMC Code

1. What are common symptoms of OBDII code B1805 GMC related to the Driver Seat Motor Side Bolster Circuit?

The common symptoms include the driver seat side bolster not moving or adjusting properly, unusual noises coming from the seat, or the seat not holding its position correctly.

2. What are the possible causes of OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

Possible causes include a faulty seat motor, damaged wiring or connectors in the side bolster circuit, a blown fuse, or a malfunctioning seat control module.

3. How can I diagnose the issue related to OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

Diagnose the issue by checking the seat motor functionality, inspecting the wiring and connectors for any damage, testing the fuse for continuity, and using a diagnostic tool to scan the seat control module for error codes.

4. Can I repair the OBDII code B1805 GMC related to the Driver Seat Motor Side Bolster Circuit myself?

If you have experience working with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty seat motor, repairing damaged wiring or connectors, or resetting the seat control module. Otherwise, it is recommended to seek professional help.

5. Are there any quick tips for troubleshooting OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

Quick tips include checking the fuse related to the seat motor circuit, ensuring the seat is clear of any obstructions that may prevent movement, and inspecting the seat controls for any visible damage or wear.

6. Is it safe to continue driving with OBDII code B1805 GMC triggered for the Driver Seat Motor Side Bolster Circuit?

It is not recommended to continue driving with this code triggered, as it can affect the functionality of the driver's seat, potentially leading to discomfort or safety issues while driving.

7. How much does it cost to repair OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

The cost of repair can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain quotes from different mechanics or dealerships.

8. Can the OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit be intermittent?

Yes, the code may sometimes appear intermittently if there is a loose connection or an intermittent fault in the seat motor circuit. It is important to address the issue promptly to prevent further problems.

9. Are there any recalls or technical service bulletins related to OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

Check with your local dealership or GMC's official website to see if there are any recalls or technical service bulletins related to this specific OBDII code. Keeping up to date with manufacturer information can be helpful in addressing the issue.

10. How long does it typically take to repair OBDII code B1805 GMC for the Driver Seat Motor Side Bolster Circuit?

The repair time can vary depending on the complexity of the issue and the availability of parts. In some cases, the repair can be completed within a few hours, while more complicated issues may take longer.

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