AutoCodes – Buick – B2177 Buick

B2177 Buick Code - Power Seat Switch Circuit

Quick Answer

The seat adjuster switch signal circuits are supplied 12 volts through resistors within the Memory Seat Module. Common causes include Faulty Power Seat Switch, Power Seat Switch harness is open or shorted, Power Seat 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: B2177 Buick indicates Power Seat Switch Circuit.
Common causes: Common causes include Faulty Power Seat Switch, Power Seat Switch harness is open or shorted, Power Seat 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 495

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2177 Buick Description

The seat adjuster switch signal circuits are supplied 12 volts through resistors within the Memory Seat Module. When a seat adjuster switch is pressed the signal circuit is grounded. Closing the signal circuit to ground pulls the signal circuit voltage low indicating to the Memory Seat Module the switch status is active. The OBDII code is set when a seat adjuster switch input to the Memory Seat Module is active for more than 20 seconds.

OBDII Code B2177 Buick - Power Seat Switch Circuit - AutoCodes.com — B2177 Buick Code - Power Seat Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B2177 Buick?

Faulty Power Seat Switch
Power Seat Switch harness is open or shorted
Power Seat Switch circuit poor electrical connection
Faulty Memory Seat Module

How to Fix the DTC B2177 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 B2177 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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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 B2177 Buick Code

1. What are common symptoms of OBDII code B2177 in a Buick related to the power seat switch circuit?

- Common symptoms include non-responsive power seat controls, erratic movement of the power seat, or complete failure of the power seat functions.

2. What are possible causes of OBDII code B2177 in a Buick indicating an issue with the power seat switch circuit?

- Potential causes include a faulty power seat switch, damaged wiring or connectors in the circuit, or a malfunctioning power seat control module.

3. How can I diagnose the power seat switch circuit issue triggering OBDII code B2177 in my Buick?

- You can use a multimeter to test the continuity of the power seat switch, inspect the wiring for any visible damage, and check the power seat control module for proper functioning.

4. Is it safe to continue driving my Buick with OBDII code B2177 related to the power seat switch circuit?

- It is not recommended to drive the vehicle with this issue, as it can lead to further electrical problems or potential safety hazards due to the malfunctioning power seat controls.

5. Can I reset OBDII code B2177 in my Buick related to the power seat switch circuit by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is crucial to address the underlying issue causing the fault code to prevent it from reoccurring.

6. How much does it typically cost to repair the power seat switch circuit issue triggering OBDII code B2177 in a Buick?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the power seat switch, repairing wiring, or reprogramming the power seat control module.

7. Are there any DIY tips for troubleshooting OBDII code B2177 related to the power seat switch circuit in a Buick?

- You can start by checking the fuse related to the power seat circuit, inspecting the wiring under the seat for damage, and ensuring the power seat switch is securely connected.

8. Will fixing OBDII code B2177 in my Buick related to the power seat switch circuit require specialized tools or equipment?

- Basic tools like a multimeter, electrical tape, and a socket set may be sufficient for diagnosing and repairing the power seat switch circuit issue in your Buick.

9. Can a malfunctioning power seat switch cause other electrical problems in my Buick, in addition to triggering OBDII code B2177?

- Yes, a faulty power seat switch can potentially cause other electrical issues in the vehicle, as it is part of the overall electrical system that may impact other components.

10. How long does it typically take to repair the power seat switch circuit problem associated with OBDII code B2177 in a Buick?

- The repair time can vary based on the exact cause of the issue and the extent of the repairs needed, but it may take a few hours to a full day to address the power seat switch circuit problem effectively.