AutoCodes – Chevrolet – B3941 Chevrolet

B3941 Chevrolet Code - Front Seat Heaters Circuit

Quick Answer

The driver and passenger seat heaters are controlled by the Driver Seat Module (DSM). Common causes include Faulty Front Seat Heater Element, Front Seat Heater Element harness is open or shorted, Front Seat Heater Element 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: B3941 Chevrolet indicates Front Seat Heaters Circuit.
Common causes: Common causes include Faulty Front Seat Heater Element, Front Seat Heater Element harness is open or shorted, Front Seat Heater Element 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,419

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 Mar 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B3941 Chevrolet Description

The driver and passenger seat heaters are controlled by the Driver Seat Module (DSM). Power is supplied to the driver seat cushion and back heater elements through individual voltage supply circuits. Power is supplied to the passenger seat cushion and back heater elements through a common voltage supply circuit. All of the driver and passenger seat heater elements are grounded by the DSM through individual low side drive control circuits. The heater element control circuits are pulse width modulated to ground by the DSM in order to control the seat temperatures by regulating the current flow through the heater elements. The Diagnostic Trouble Code (DTC) sets when the DSM determines that one of the seat heater element voltage supply circuits is shorted to ground.

OBDII Code B3941 Chevrolet - Front Seat Heaters Circuit - AutoCodes.com — B3941 Chevrolet Code - Front Seat Heaters Circuit

What does this mean?

What are the Possible Causes of the DTC B3941 Chevrolet?

Faulty Front Seat Heater Element
Front Seat Heater Element harness is open or shorted
Front Seat Heater Element circuit poor electrical connection
Faulty Driver Seat Module (DSM)

How to Fix the DTC B3941 Chevrolet?

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 B3941 Chevrolet 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 B3941 Chevrolet code?

Need more information on how to fix the B3941 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3941 Chevrolet 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 B3941 Chevrolet Code

1. What are common symptoms of OBDII code B3941 on a Chevrolet related to the front seat heaters circuit?

- Common symptoms include inoperative front seat heaters, uneven heating, or no response when adjusting heat settings.

2. What are possible causes of OBDII code B3941 Chevrolet for the front seat heaters circuit issue?

- Potential causes may include a faulty seat heater module, damaged wiring or connectors, or a malfunctioning seat heater switch.

3. How can I diagnose the OBDII code B3941 Chevrolet for front seat heater circuit problems?

- Diagnosis involves checking the seat heater module, inspecting wiring for damage, testing connectors for proper connection, and verifying the functionality of the seat heater switch.

4. Can a DIY enthusiast repair the OBDII code B3941 Chevrolet related to the front seat heaters circuit?

- While some basic troubleshooting like checking for loose connections or blown fuses can be done by a DIY enthusiast, complex repairs involving module replacement or wiring repairs may require professional assistance.

5. Are there any quick tips for resolving OBDII code B3941 Chevrolet affecting the front seat heaters circuit?

- Quick tips include checking the fuse related to the seat heaters, ensuring the seat heater switch is functioning correctly, and inspecting wiring for any visible damage.

6. Is it safe to continue driving with OBDII code B3941 Chevrolet triggered for front seat heaters circuit issues?

- It is generally safe to continue driving, but it is recommended to address the problem promptly to avoid discomfort during cold weather and restore the functionality of the front seat heaters.

7. How much can I expect to pay for repairing OBDII code B3941 Chevrolet associated with the front seat heaters circuit?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 for minor fixes to $500 or more for complex repairs involving module replacement.

8. Can OBDII code B3941 Chevrolet be triggered intermittently for front seat heaters circuit problems?

- Yes, intermittent issues such as loose connections or a failing seat heater module can cause the code to trigger sporadically, making diagnosis and repair more challenging.

9. Are there any recalls or technical service bulletins related to OBDII code B3941 Chevrolet and the front seat heaters circuit?

- It is recommended to check with Chevrolet dealerships or online databases for any recalls or technical service bulletins specific to OBDII code B3941 and front seat heater circuit issues.

10. How long does it typically take to repair OBDII code B3941 Chevrolet tied to the front seat heaters circuit?

- The repair time can vary based on the complexity of the issue and the extent of repairs needed, but it generally takes a few hours to a day to diagnose and fix the problem.