B3981 2014 Chevrolet Silverado Code - Incorrect Environmental Identifier Received from Electronic Brake Control Module
Quick Answer
The B3981 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Body Control Module (BCM) has received an incorrect environmental identifier from the Electronic Brake Control Module (EBCM). Common causes include Faulty wiring or connectors between the EBCM and BCM, Corrosion or damage to the communication lines between the modules, Software issues or programming errors in either 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
- B3981 2014 Chevrolet Silverado indicates Incorrect Environmental Identifier Received from Electronic Brake Control Module.
- Common causes
- Common causes include Faulty wiring or connectors between the EBCM and BCM, Corrosion or damage to the communication lines between the modules, Software issues or programming errors in either 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B3981 2014 Chevrolet Silverado Description
The B3981 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Body Control Module (BCM) has received an incorrect environmental identifier from the Electronic Brake Control Module (EBCM). This means that there is a communication error between these two modules, which are crucial for the proper functioning of various vehicle systems.
Common Causes of B3981 2014 Chevrolet Silverado
- Faulty wiring or connectors between the EBCM and BCM
- Corrosion or damage to the communication lines between the modules
- Software issues or programming errors in either module
- Failed EBCM or BCM unit
- Electrical interference from aftermarket accessories or modifications
Symptoms of B3981 2014 Chevrolet Silverado
- ABS warning light illuminated on the dashboard
- Traction control system malfunction
- Loss of power windows or interior lighting control
- Keyless entry system not working properly
- Decreased braking performance
How to Fix B3981 2014 Chevrolet Silverado
- Begin by conducting a thorough visual inspection of the wiring and connectors between the EBCM and BCM to check for any damage or corrosion.
- Use a diagnostic scan tool to retrieve specific trouble codes and data from both modules to pinpoint the exact cause of the communication error.
- If necessary, reprogram or update the software in the EBCM and BCM to ensure compatibility and proper communication.
- Test the communication lines between the modules for continuity and repair or replace any damaged components.
- If the issue persists, consider replacing either the EBCM or BCM unit to resolve the communication error.
Cost to Fix B3981 2014 Chevrolet Silverado
The typical repair costs for addressing the B3981 code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $200 to $600, while labor costs can add an additional $100 to $300. Overall, the total repair cost may fall between $300 and $900. It is important to note that these estimates are rough averages, and actual costs can vary based on factors such as location, labor rates, and the extent of the repair needed. It is advisable to consult with a qualified mechanic or auto repair shop to get a more accurate cost estimate for this repair.
Need more information about the B3981 2014 Chevrolet Silverado code?
Need more information on how to fix the B3981 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B3981 2014 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B3981 2014 Chevrolet Silverado Code
1. What does the OBDII code B3981 mean on a 2014 Chevrolet Silverado?
B3981 indicates that the Electronic Brake Control Module (EBCM) has received an incorrect environmental identifier, which is a mismatch in communication data.
2. What are common symptoms of code B3981 in a 2014 Chevrolet Silverado?
Symptoms may include the ABS warning light being illuminated, reduced functionality of the ABS system, and potential loss of traction control features.
3. What causes code B3981 to appear in a 2014 Chevrolet Silverado?
This code is typically caused by a software mismatch, incorrect module programming, or a communication error between the EBCM and other control modules.
4. Can a faulty Electronic Brake Control Module cause B3981?
Yes, a malfunctioning or improperly programmed EBCM can cause code B3981 to appear.
5. How can code B3981 be diagnosed in a 2014 Chevrolet Silverado?
Diagnosis involves using a scan tool to confirm the code, checking for additional trouble codes, inspecting wiring and connectors to the EBCM, and verifying module programming.
6. Is it safe to drive a 2014 Chevrolet Silverado with code B3981?
While the truck may still be drivable, safety features like ABS and traction control may be compromised, so it’s recommended to address the issue promptly.
7. How is code B3981 fixed on a 2014 Chevrolet Silverado?
Repairs may include reprogramming or updating the EBCM software, resolving communication errors, or replacing the EBCM if necessary.
8. Can a dead battery cause code B3981 in a 2014 Chevrolet Silverado?
A dead or low battery can potentially cause communication errors between modules, which may trigger this code, but it’s not a common cause.
9. How much does it cost to fix code B3981 on a 2014 Chevrolet Silverado?
Repair costs can vary depending on the issue but typically range from $150 to $600, depending on whether reprogramming or module replacement is required.
10. Can clearing the code B3981 resolve the issue on a 2014 Chevrolet Silverado?
Clearing the code may temporarily remove it, but unless the underlying issue is addressed, the code is likely to return.
Discuss the causes and fixes for B3981 2014 Chevrolet Silverado OBDII Code
Code B3981 2014 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.