AutoCodes – GMC – B243A 2016 GMC Sierra

B243A 2016 GMC Sierra Code - Left Front Seat Heating Switch

Quick Answer

The Body Control Module (BCM) detects an internal fault with the seat heating switch. Common causes include Faulty Left Front Seat Heating Switch, Left Front Seat Heating Switch harness is open or shorted, Left Front Seat Heating 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: B243A 2016 GMC Sierra indicates Left Front Seat Heating Switch.
Common causes: Common causes include Faulty Left Front Seat Heating Switch, Left Front Seat Heating Switch harness is open or shorted, Left Front Seat Heating 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.

Save to My Repairs My Repairs

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

Code Popularity 155

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 Apr 26, 2023

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 B243A 2016 GMC Sierra Description

The Body Control Module (BCM) detects an internal fault with the seat heating switch. No external circuits are involved. The Diagnostic Trouble Code (DTC) sets when the BCM detects an internal fault with the seat heating switch.

OBDII Code B243A 2016 GMC Sierra - Left Front Seat Heating Switch - AutoCodes.com — B243A 2016 GMC Sierra Code - Left Front Seat Heating Switch

What does this mean?

What are the Possible Causes of the DTC B243A 2016 GMC Sierra?

Faulty Left Front Seat Heating Switch
Left Front Seat Heating Switch harness is open or shorted
Left Front Seat Heating Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B243A 2016 GMC Sierra?

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 B243A 2016 GMC Sierra 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 B243A 2016 GMC Sierra code?

Need more information on how to fix the B243A 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B243A 2016 GMC Sierra 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 B243A 2016 GMC Sierra Code

1. What does OBDII code B243A for a 2016 GMC Sierra indicate?

- This code specifically relates to the Left Front Seat Heating Switch in the vehicle.

2. What are the common symptoms of OBDII code B243A in a 2016 GMC Sierra?

- The common symptoms include malfunctioning or inoperative left front seat heating functionality.

3. What are the possible causes of OBDII code B243A in a 2016 GMC Sierra?

- The code may be triggered due to a faulty left front seat heating switch, wiring issues, or a malfunction in the heating element itself.

4. How can I diagnose the issue related to OBDII code B243A in my 2016 GMC Sierra?

- You can start by visually inspecting the left front seat heating switch and its wiring for any visible damage. Using a multimeter to test for continuity can also help pinpoint the issue.

5. Can I repair OBDII code B243A in a 2016 GMC Sierra myself?

- Depending on your expertise, you may be able to replace the left front seat heating switch or address wiring problems yourself. However, it is recommended to consult a professional for proper diagnosis and repair.

6. Is it safe to continue driving with OBDII code B243A in a 2016 GMC Sierra?

- While the code may not affect the overall drivability of the vehicle, it is recommended to address the issue promptly, especially if you rely on the seat heating function for comfort.

7. Are there any temporary fixes for OBDII code B243A in a 2016 GMC Sierra?

- Temporary fixes like checking and securing any loose connections or fuses related to the left front seat heating system may help, but a permanent solution would involve proper diagnosis and repair.

8. How much does it typically cost to repair OBDII code B243A in a 2016 GMC Sierra?

- The cost of repair can vary depending on the exact underlying issue. Replacing the left front seat heating switch or addressing wiring problems can range from a few hundred to a thousand dollars.

9. Will resetting the OBDII system clear the B243A code in a 2016 GMC Sierra?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear upon further system checks.

10. Can OBDII code B243A in a 2016 GMC Sierra be related to other heating system issues in the vehicle?

- While the code specifically pertains to the left front seat heating switch, it is recommended to inspect the entire heating system to rule out any interconnected issues.