AutoCodes – Buick – B2172 Buick

B2172 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
B2172 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 656
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 22, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B2172 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 B2172 Buick - Power Seat Switch Circuit - AutoCodes.com
B2172 Buick Code - Power Seat Switch Circuit

What are the Possible Causes of the DTC B2172 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 B2172 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 B2172 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.

Need more information about the B2172 Buick code?

Need more information on how to fix the B2172 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2172 Buick code diagnosed by a professional: Find a repair shop in your area

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 B2172 Buick Code

1. What are the common symptoms of OBDII code B2172 in a Buick related to the power seat switch circuit?

The common symptoms include non-functioning power seat controls, inability to adjust the seat position, or erratic seat movement.

2. What are some possible causes of the B2172 OBDII code in a Buick's power seat switch circuit?

Possible causes may include a faulty power seat switch, damaged wiring or connectors, a blown fuse, or a malfunctioning power seat control module.

3. How can I diagnose the B2172 code related to the power seat switch circuit in my Buick?

To diagnose the issue, you can start by checking the power seat fuse, inspecting the wiring and connectors for damage, testing the power seat switch for continuity, and using a scan tool to retrieve specific trouble codes.

4. Can I still drive my Buick with the B2172 OBDII code indicating a problem with the power seat switch circuit?

While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to avoid potential safety hazards or further damage to the power seat system.

5. Are there any simple repair tips for fixing the B2172 OBDII code in a Buick's power seat switch circuit?

Simple repair tips may include checking and replacing any blown fuses, repairing damaged wiring or connectors, cleaning the power seat switch contacts, or resetting the power seat control module.

6. How much does it typically cost to repair the B2172 OBDII code related to the power seat switch circuit in a Buick?

The cost of repair can vary depending on the exact cause of the issue, but it may range from a few dollars for a fuse replacement to a couple of hundred dollars for more complex repairs involving the power seat switch or control module.

7. Can I reset the B2172 OBDII code related to the power seat switch circuit in my Buick without professional help?

You can attempt to reset the code by disconnecting the car battery for a few minutes or using an OBDII scanner to clear the code. However, if the underlying issue is not addressed, the code may reappear.

8. Is it safe to attempt DIY repairs for the B2172 OBDII code in a Buick's power seat switch circuit?

DIY repairs such as checking fuses, inspecting wiring, or cleaning switch contacts can be safe if done carefully. However, more complex repairs involving electrical components may require professional expertise to ensure proper diagnosis and repair.

9. How long does it typically take to fix the B2172 OBDII code related to the power seat switch circuit in a Buick?

The repair time can vary based on the cause of the issue and the complexity of the repair. Simple fixes like replacing a fuse may take a few minutes, while more involved repairs could take several hours.

10. What should I do if I continue to experience issues with the power seat switch circuit in my Buick after repairing the B2172 OBDII code?

If problems persist after repair, it is recommended to have the vehicle inspected by a qualified mechanic to determine if there are any underlying issues or additional faults contributing to the power seat malfunction.

Discuss the causes and fixes for B2172 Buick OBDII Code

Code B2172 Buick comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play