AutoCodes – Chevrolet – B243B 2018 Chevrolet Silverado

B243B 2018 Chevrolet Silverado Code - Right Front Seat Heating Switch

Quick Answer

The Body Control Module (BCM) detects an internal fault with the seat heating switch. Common causes include Faulty Right Front Seat Heating Switch, Right Front Seat Heating Switch harness is open or shorted, Right 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: B243B 2018 Chevrolet Silverado indicates Right Front Seat Heating Switch.
Common causes: Common causes include Faulty Right Front Seat Heating Switch, Right Front Seat Heating Switch harness is open or shorted, Right 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.

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Code Popularity 187

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
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Code B243B 2018 Chevrolet Silverado 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 B243B 2018 Chevrolet Silverado - Right Front Seat Heating Switch - AutoCodes.com — B243B 2018 Chevrolet Silverado Code - Right Front Seat Heating Switch

What does this mean?

What are the Possible Causes of the DTC B243B 2018 Chevrolet Silverado?

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

How to Fix the DTC B243B 2018 Chevrolet Silverado?

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 B243B 2018 Chevrolet Silverado 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 B243B 2018 Chevrolet Silverado code?

Need more information on how to fix the B243B 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 B243B 2018 Chevrolet Silverado Code

1. What does the OBDII code B243B mean on a 2018 Chevrolet Silverado?

The B243B code indicates an issue with the right front seat heating switch, often related to a circuit malfunction or communication error.

2. What are the symptoms of code B243B in a 2018 Chevrolet Silverado?

Common symptoms include the right front seat heater not functioning, the seat heater button not lighting up, or intermittent heating performance.

3. What causes the B243B code to appear?

This code can be caused by a faulty seat heating switch, damaged wiring or connectors in the circuit, or a malfunctioning seat heater control module.

4. How can I diagnose the B243B code?

Start by visually inspecting the right front seat heating switch, wiring, and connectors for damage or corrosion. Use a scan tool to check for additional codes and confirm communication with the seat heater control module.

5. Can I still drive my Silverado with the B243B code active?

Yes, the vehicle is safe to drive; however, the right front seat heater functionality may be impaired or completely unavailable.

6. How do I fix the B243B code on a 2018 Chevrolet Silverado?

Repairs may involve replacing the faulty seat heating switch, repairing damaged wiring or connectors, or reprogramming or replacing the seat heater control module.

7. How much does it cost to fix the B243B code?

Repair costs can vary, but replacing a seat heating switch typically costs $100â€“$200, while wiring repairs or module replacements may be more expensive depending on labor rates.

8. Can a blown fuse cause the B243B code?

Yes, a blown fuse in the seat heater circuit can interrupt power to the switch and trigger this code. Check the fuse box for any blown fuses related to the seat heater system.

9. Will clearing the B243B code fix the problem?

Clearing the code may temporarily turn off the warning, but the underlying issue must be diagnosed and repaired to prevent the code from returning.

10. Do I need a professional mechanic to fix the B243B code?

While some DIY fixes like replacing a switch or checking fuses are possible, more complex issues involving the control module or wiring may require a professional mechanic.