Engine-Codes.com
Engine-Codes – GMC – B191A GMC

B191A GMC Code - Front Heated Seat Module

Quick Answer

The B191A code for GMC vehicles specifically relates to the Front Heated Seat Module. Common causes include Wiring harness damage or corrosion, Faulty connectors affecting communication with the module, Defective front heated seat module. 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
B191A GMC indicates Front Heated Seat Module.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty connectors affecting communication with the module, Defective front heated seat module.
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 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code B191A GMC Description

The B191A code for GMC vehicles specifically relates to the Front Heated Seat Module. This code indicates a problem with the module responsible for controlling the front heated seats in the vehicle. The front heated seat module is a component that manages the operation of the heated seats, regulating the temperature and ensuring they function correctly. When this module malfunctions or encounters an issue, it can lead to the heated seats not working as intended or not working at all.

OBDII Code B191A GMC - Front Heated Seat Module
B191A GMC Code - Front Heated Seat Module

Common Causes of B191A GMC

  1. Wiring harness damage or corrosion.
  2. Faulty connectors affecting communication with the module.
  3. Defective front heated seat module.
  4. Electrical issues in the vehicle's system impacting the module.
  5. Environmental factors such as moisture or debris affecting the module.

Symptoms of B191A GMC

  1. Front heated seats not warming up or inconsistent heating.
  2. Error message or indicator light related to the front heated seats on the dashboard.
  3. Inability to adjust the temperature of the front heated seats.
  4. Front heated seats turning off unexpectedly during use.

How to Fix B191A GMC

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the B191A code and identify the underlying problem.
  2. Inspect the wiring harness and connectors associated with the front heated seat module for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the front heated seat module for functionality and replace if found to be faulty.
  4. Clear the B191A code from the vehicle's system using the diagnostic scanner to reset the module and ensure proper operation.
  5. Test the front heated seats to verify that they are heating correctly and that the issue has been resolved.

Cost to Fix B191A GMC

The typical repair costs for addressing the B191A code related to the Front Heated Seat Module can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. For a more precise estimate, it's recommended to check local rates before proceeding with the repair.

Need more information about the B191A GMC code?

Need more information on how to fix the B191A GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B191A GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

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 B191A GMC Code

1. What does the OBDII code B191A mean for a GMC vehicle?

The code B191A indicates a malfunction in the Front Heated Seat Module, which is responsible for controlling the heating function of the front seats.

2. What are common symptoms of the B191A code in a GMC vehicle?

Common symptoms include the front heated seats not warming up, intermittent seat heating, or the heated seat controls not responding.

3. What causes the B191A code on a GMC vehicle?

Typical causes include a faulty Front Heated Seat Module, damaged wiring or connectors, or power supply issues to the module.

4. Can a blown fuse trigger the B191A code?

Yes, a blown fuse related to the heated seat circuit can contribute to the code and prevent the module from functioning properly.

5. How can I diagnose the B191A code in my GMC vehicle?

Start by checking the heated seat module fuse, inspecting wiring and connectors for damage, and testing the module itself for proper operation.

6. Is it safe to drive with the B191A code on my GMC vehicle?

Yes, the code usually affects comfort features and does not compromise vehicle safety or drivability.

7. How do you fix the B191A code on a GMC vehicle?

Repairs may include replacing the Front Heated Seat Module, repairing damaged wiring or connectors, or replacing a blown fuse.

8. Can a faulty heated seat switch cause the B191A code?

Yes, if the heated seat switch is malfunctioning, it can prevent the module from receiving commands and trigger the code.

9. How much does it typically cost to fix the B191A code on a GMC vehicle?

Repair costs vary but can range from $150 to $500 depending on whether the module, wiring, or other components need replacement.

10. Will clearing the B191A code with a scan tool fix the problem?

Clearing the code may temporarily erase it, but if the underlying issue isn’t resolved, the code will return.

Discuss the causes and fixes for B191A GMC OBDII Code

Submit a New Comment

Code B191A GMC comments

No comments found for this page.