AutoCodes – GMC – C12E1 GMC

C12E1 GMC Code - Electronic Brake Control Module Supply Circuit Low Voltage

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. 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
C12E1 GMC indicates Electronic Brake Control Module Supply Circuit Low Voltage.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,833
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 05, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code C12E1 GMC Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Powertrain Control Module (PCM) sets the OBDII code when the Electronic Brake Control Module (EBCM) is not to factory specifications.
OBDII Code C12E1 GMC - Electronic Brake Control Module Supply Circuit Low Voltage - AutoCodes.com
C12E1 GMC Code - Electronic Brake Control Module Supply Circuit Low Voltage

What are the Possible Causes of the DTC C12E1 GMC?

  • Faulty Electronic Brake Control Module (EBCM)
  • Electronic Brake Control Module harness is open or shorted
  • Electronic Brake Control Module circuit poor electrical connection

How to Fix the DTC C12E1 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 C12E1 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.

Need more information about the C12E1 GMC code?

Need more information on how to fix the C12E1 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C12E1 GMC code diagnosed by a professional: Find a repair shop in your area

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 C12E1 GMC Code

1. What are the common symptoms of OBDII code C12E1 in a GMC related to the Electronic Brake Control Module Supply Circuit Low Voltage?

- Common symptoms include the illumination of the ABS warning light on the dashboard, poor brake performance, and potential activation of the vehicle's stability control system.

2. What are some possible causes of the Electronic Brake Control Module Supply Circuit Low Voltage code C12E1 in a GMC?

- Potential causes can include a faulty electronic brake control module, damaged wiring or connectors in the brake control circuit, or a weak battery or alternator.

3. How can I diagnose the Electronic Brake Control Module Supply Circuit Low Voltage issue in my GMC when OBDII code C12E1 is triggered?

- Diagnosis typically involves checking the condition of the brake control module, inspecting the wiring and connectors for any visible damage, and testing the battery and alternator for proper voltage output.

4. Is it safe to drive my GMC when OBDII code C12E1 for the Electronic Brake Control Module Supply Circuit Low Voltage is present?

- It is not recommended to drive your vehicle when this code is present, as it can affect the proper functioning of the electronic brake control system, compromising safety.

5. How can I reset the OBDII code C12E1 related to the Electronic Brake Control Module Supply Circuit Low Voltage in my GMC?

- Resetting the code typically involves using an OBDII scanner to clear the code after addressing the underlying issue causing the low voltage supply to the electronic brake control module.

6. Can a DIY enthusiast repair the Electronic Brake Control Module Supply Circuit Low Voltage issue in a GMC triggering OBDII code C12E1?

- While some basic troubleshooting steps can be done by DIY enthusiasts, diagnosing and repairing the root cause of this issue may require specialized tools and expertise, so professional help is often recommended.

7. Will replacing the brake control module resolve the OBDII code C12E1 in a GMC?

- Replacing the brake control module may resolve the issue, but it is essential to ensure that all wiring, connectors, and power supply components are thoroughly inspected and tested to prevent future occurrences of the code.

8. Are there any preventive maintenance tips to avoid encountering the Electronic Brake Control Module Supply Circuit Low Voltage issue in a GMC?

- Regularly checking the condition of the battery, alternator, and brake control system components, as well as ensuring proper wiring connections, can help prevent issues leading to the C12E1 OBDII code.

9. How much does it typically cost to repair the Electronic Brake Control Module Supply Circuit Low Voltage issue triggering OBDII code C12E1 in a GMC?

- The cost of repair can vary depending on the root cause of the problem, but it is advisable to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and required repairs.

10. Can the Electronic Brake Control Module Supply Circuit Low Voltage issue causing OBDII code C12E1 in a GMC impact the overall vehicle performance?

- Yes, this issue can impact overall vehicle performance, especially in terms of brake responsiveness and stability control system operation, potentially compromising the safety and drivability of the vehicle.

Discuss the causes and fixes for C12E1 GMC OBDII Code

Code C12E1 GMC comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play