C1255 GMC 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
- C1255 GMC 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 C1255 GMC Description
What are the Possible Causes of the DTC C1255 GMC?
- 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 C1255 GMC?
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 C1255 GMC 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 C1255 GMC Code
1. What does the OBDII code C1255 mean on a GMC vehicle?
C1255 indicates an "EBCM Internal Malfunction," meaning the Electronic Brake Control Module (EBCM) has detected an internal error in its circuitry or processing.
2. What are the common symptoms of code C1255 on a GMC?
Symptoms may include an illuminated ABS warning light, traction control light, reduced braking performance, or loss of ABS functionality.
3. What causes the C1255 code on a GMC?
Common causes include a faulty EBCM, wiring issues such as damaged or corroded connectors, or a software glitch in the module.
4. Can I still drive my GMC with a C1255 code?
Yes, the vehicle can typically still be driven, but the ABS and traction control systems may not function properly, increasing the risk of wheel lock-up during hard braking.
5. How can I diagnose the C1255 code on a GMC?
Use an OBDII scanner to confirm the code and check live data. Inspect the EBCM wiring harness and connectors for damage or corrosion, and test the module's power and ground circuits.
6. Does clearing the C1255 code fix the problem?
Clearing the code may turn off the warning light temporarily, but if the underlying issue isn't resolved, the code will likely return.
7. How much does it cost to repair a C1255 code on a GMC?
Repair costs can vary widely, typically ranging from $150 to $1,200, depending on whether the issue is a wiring repair or an EBCM replacement.
8. Can a C1255 code be caused by a low battery?
Yes, a low or weak battery can sometimes cause the EBCM to malfunction, triggering the C1255 code. Ensure the battery is fully charged and in good condition.
9. How do I reset the C1255 code on a GMC?
After repairing the issue, use an OBDII scanner to clear the code. If the problem persists, the code will reappear.
10. Is replacing the EBCM the only solution for a C1255 code?
Not always. In some cases, the issue can be resolved by repairing wiring, cleaning corroded connectors, or updating the module’s software. Replacing the EBCM is a last resort.
Discuss the causes and fixes for C1255 GMC OBDII Code
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