C1256 Chevrolet Code - EBCM Internal Malfunction
Quick Answer
The Electronic Brake Control Module (EBCM) has identified an internal malfunction and have set the OBDII code. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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
- C1256 Chevrolet indicates EBCM Internal Malfunction.
- Common causes
- Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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 C1256 Chevrolet Description
What are the Possible Causes of the DTC C1256 Chevrolet?
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module (EBCM) harness is open or shorted
- Electronic Brake Control Module (EBCM) circuit poor electrical connection
How to Fix the DTC C1256 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 C1256 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.
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Frequently Asked Questions about C1256 Chevrolet Code
1. What does the OBDII code C1256 mean for Chevrolet vehicles?
The C1256 code indicates an "EBCM Internal Malfunction," meaning there is an issue with the Electronic Brake Control Module (EBCM) that may affect ABS functionality.
2. What are the common symptoms of code C1256 in a Chevrolet?
Common symptoms include the ABS warning light being illuminated, reduced or disabled ABS functionality, and in some cases, traction control or stability system warnings.
3. What causes the C1256 code to appear in a Chevrolet?
The most common causes are internal failure of the EBCM, electrical issues such as damaged wiring or poor ground connections, or software glitches in the module.
4. Can a faulty ABS wheel speed sensor trigger code C1256?
No, a faulty ABS wheel speed sensor typically triggers a different code; C1256 specifically refers to an internal issue within the EBCM.
5. How do mechanics diagnose the C1256 code on a Chevrolet?
Mechanics use a scan tool to confirm the code, inspect the EBCM and its wiring for damage or corrosion, check ground connections, and test the module's functionality.
6. Can I drive my Chevrolet with the C1256 code active?
While the vehicle may still be drivable, the ABS system may not function properly, increasing the risk of wheel lockup during hard braking. It’s best to address the issue promptly.
7. How is the C1256 code typically fixed on a Chevrolet?
Repairs may involve cleaning or repairing wiring and ground connections, reprogramming the EBCM, or replacing the module if it’s determined to be faulty.
8. Is reprogramming the EBCM required to fix code C1256?
Sometimes. If the issue is due to a software error, reprogramming the EBCM with updated software may resolve the problem.
9. How much does it cost to repair a C1256 code on a Chevrolet?
Costs vary depending on the repair. Cleaning or wiring repairs are inexpensive, but EBCM replacement can cost $500–$1,000 or more, including parts and labor.
10. Can a dead or weak battery cause the C1256 code in a Chevrolet?
Yes, a weak or dead battery can cause voltage irregularities that may lead to EBCM malfunctions and trigger the C1256 code.
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