B3981 2016 Chevrolet Silverado Code - Incorrect Environmental Identifier Received from Electronic Brake Control Module
Quick Answer
When certain modules are programmed and configured during installation, the module learns a specific environment identifier which is unique to the vehicle. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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
- B3981 2016 Chevrolet Silverado indicates Incorrect Environmental Identifier Received from Electronic Brake Control Module.
- Common causes
- Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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.
Code B3981 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC B3981 2016 Chevrolet Silverado?
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module harness is open or shorted
- Electronic Brake Control Module circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3981 2016 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 B3981 2016 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.
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Frequently Asked Questions about B3981 2016 Chevrolet Silverado Code
1. What does the OBDII code B3981 mean on a 2016 Chevrolet Silverado?
The code B3981 indicates that the Electronic Brake Control Module (EBCM) has received an incorrect environmental identifier, which is typically a mismatch in configuration data.
2. What are the common symptoms of code B3981 in a 2016 Chevrolet Silverado?
Symptoms can include warning lights on the dashboard (such as ABS or traction control), malfunctioning stability control systems, or no noticeable symptoms at all.
3. What causes the B3981 code to appear in a 2016 Chevrolet Silverado?
The most common causes are incorrect module programming, a mismatch in vehicle configuration data, or communication errors between the EBCM and other modules.
4. Can a faulty Electronic Brake Control Module (EBCM) cause the B3981 code?
Yes, a faulty or improperly programmed EBCM can cause this code by sending or receiving incorrect environmental identifiers.
5. How is the B3981 code diagnosed on a 2016 Chevrolet Silverado?
A technician will use a professional scan tool to check for stored codes, review module communication data, and confirm the configuration settings of the EBCM and other related modules.
6. Can I still drive my 2016 Chevrolet Silverado with the B3981 code?
While the truck may still drive, safety features like ABS and stability control may not function properly, which could increase the risk of accidents in certain conditions.
7. How can the B3981 code be fixed on a 2016 Chevrolet Silverado?
The code can often be resolved by reprogramming or reconfiguring the EBCM to match the vehicle’s specifications. In some cases, module replacement may be necessary.
8. How much does it cost to fix the B3981 code on a 2016 Chevrolet Silverado?
Repair costs can vary, but reprogramming the EBCM typically costs $100–$250, while module replacement can range from $500–$1,000 or more, including parts and labor.
9. Can a weak battery or voltage issue trigger the B3981 code?
Yes, low voltage or power supply issues can disrupt communication between modules, potentially triggering this code.
10. Do I need to visit a dealership to fix the B3981 code on my 2016 Chevrolet Silverado?
While some independent shops have the tools to reprogram modules, visiting a dealership is often recommended as they have the specific software and expertise for Chevrolet vehicles.
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