AutoCodes – Buick – B2104 Buick

B2104 Buick Code - Power Seat Switch Shorted

Quick Answer

When the Power Seat Switches are pressed, the Memory Seat Module (MSM) receives an input from the switch. Common causes include Faulty Power Seat Adjuster Switch, Power Seat Adjuster Switch harness is open or shorted, Power Seat Adjuster Switch circuit poor electrical connection. 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: B2104 Buick indicates Power Seat Switch Shorted.
Common causes: Common causes include Faulty Power Seat Adjuster Switch, Power Seat Adjuster Switch harness is open or shorted, Power Seat Adjuster Switch circuit poor electrical connection.
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.

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Code Popularity 506

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2104 Buick Description

When the Power Seat Switches are pressed, the Memory Seat Module (MSM) receives an input from the switch. The MSM commands the driver seat to move in response to the switch input. If a seat switch continues to be active for 30 seconds after the motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the MSM will set the Diagnostic Trouble Code (DTC) or if a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the MSM will set the DTC.

OBDII Code B2104 Buick - Power Seat Switch Shorted - AutoCodes.com — B2104 Buick Code - Power Seat Switch Shorted

What does this mean?

What are the Possible Causes of the DTC B2104 Buick?

Faulty Power Seat Adjuster Switch
Power Seat Adjuster Switch harness is open or shorted
Power Seat Adjuster Switch circuit poor electrical connection
Faulty Memory Seat Module (MSM)

How to Fix the DTC B2104 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2104 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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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 B2104 Buick Code

1. What are the common symptoms of OBDII code B2104 in a Buick related to the power seat switch being shorted?

The common symptoms include non-responsive power seat controls, inability to adjust the seat position, and potential malfunction of other power seat functions.

2. What could cause the power seat switch to short and trigger OBDII code B2104 in a Buick?

Potential causes include damaged wiring, moisture exposure, loose connections, faulty power seat switch, or a problem with the power seat control module.

3. How can I diagnose the power seat switch short causing OBDII code B2104 in my Buick?

You can diagnose the issue by inspecting the wiring for any visible damage, testing the power seat switch for continuity, checking the power seat fuse, and using a scan tool to retrieve the specific error codes.

4. Can I continue driving my Buick with OBDII code B2104 related to a power seat switch shorted?

It is not recommended to continue driving the vehicle with this issue, as it can lead to further electrical problems and potential safety hazards.

5. How can I repair the power seat switch short causing OBDII code B2104 in my Buick?

Repair options include fixing any damaged wiring, replacing the power seat switch if faulty, ensuring all connections are secure, and resetting the error code with a scan tool after completing the repairs.

6. Is it possible to reset OBDII code B2104 in a Buick related to a power seat switch short without fixing the underlying issue?

While you can clear the error code temporarily, it is crucial to address the root cause of the problem to prevent the code from reoccurring and ensure proper functioning of the power seat.

7. Can a DIY enthusiast fix OBDII code B2104 related to a power seat switch short in a Buick?

Depending on your skill level and access to tools, you may be able to perform basic diagnostics and repairs like checking wiring and connections. However, more complex issues may require professional assistance.

8. Will fixing OBDII code B2104 related to a power seat switch short require specialized tools or equipment?

Basic tools like a multimeter, wiring diagram, and a scan tool to reset the error code are typically sufficient for diagnosing and repairing the power seat switch short in a Buick.

9. How long does it typically take to repair OBDII code B2104 in a Buick caused by a power seat switch short?

The repair time can vary depending on the exact issue, but diagnosing and fixing a power seat switch short usually takes a few hours to complete.

10. Are there any preventive measures to avoid encountering OBDII code B2104 due to a power seat switch short in a Buick?

Regularly inspecting the power seat switch wiring for damage, avoiding exposure to moisture, and promptly addressing any power seat operation issues can help prevent the occurrence of this error code.