AutoCodes – Cadillac – C12E1 Cadillac

C12E1 Cadillac 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 Cadillac 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.

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Code Popularity 1,259

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C12E1 Cadillac 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 Cadillac - Electronic Brake Control Module Supply Circuit Low Voltage - AutoCodes.com — C12E1 Cadillac Code - Electronic Brake Control Module Supply Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC C12E1 Cadillac?

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 Cadillac?

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 Cadillac 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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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 Cadillac Code

1. What are the common symptoms of OBDII code C12E1 Cadillac (Electronic Brake Control Module Supply Circuit Low Voltage)?

The common symptoms include ABS warning light illuminating on the dashboard, loss of traction control functionality, and potential brake system malfunctions.

2. What are the possible causes of OBDII code C12E1 in a Cadillac?

Possible causes include a faulty electronic brake control module, damaged wiring or connectors in the supply circuit, low battery voltage, or a failing alternator.

3. How do I diagnose the Electronic Brake Control Module Supply Circuit Low Voltage issue in my Cadillac?

Diagnosis typically involves using a diagnostic scanner to read the fault codes, checking the battery voltage, inspecting the wiring and connectors for damage, and testing the electronic brake control module.

4. Can I continue driving my Cadillac with OBDII code C12E1 present?

It is not recommended to drive the vehicle with this code present, as it can lead to potential brake system malfunctions and compromise overall safety.

5. How can I repair the Electronic Brake Control Module Supply Circuit Low Voltage issue in my Cadillac?

Repairing the issue may involve replacing the electronic brake control module, repairing or replacing damaged wiring or connectors, ensuring proper battery voltage, and addressing any alternator issues.

6. Is it possible to reset the OBDII code C12E1 in a Cadillac without fixing the underlying issue?

While you can clear the fault code using a diagnostic scanner, it is important to address the root cause of the issue to prevent it from recurring.

7. How much does it typically cost to repair OBDII code C12E1 in a Cadillac?

The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix the Electronic Brake Control Module Supply Circuit Low Voltage issue in a Cadillac?

DIY enthusiasts with the necessary tools and knowledge may be able to address simple causes of the issue, such as checking and repairing wiring connections. However, more complex issues may require professional assistance.

9. Are there any preventive maintenance tips to avoid OBDII code C12E1 in a Cadillac?

Regularly checking the battery voltage, ensuring proper electrical system maintenance, and addressing any warning lights promptly can help prevent issues leading to the C12E1 fault code.

10. How long does it take to repair OBDII code C12E1 in a Cadillac?

The repair time can vary based on the specific cause of the issue and the complexity of the repair. It can range from a quick fix to several hours of diagnostic and repair work.