AutoCodes – Chevrolet – C111A Chevrolet

C111A Chevrolet Code - Trailer Brake Power Control Module

Quick Answer

The internal fault detection is handled inside the Trailer Brake Power Control Module. Common causes include Faulty Trailer Brake Power Control Module. 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: C111A Chevrolet indicates Trailer Brake Power Control Module.
Common causes: Common causes include Faulty Trailer Brake Power Control Module.
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 592

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 Jul 19, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C111A Chevrolet Description

The internal fault detection is handled inside the Trailer Brake Power Control Module. No external circuits are involved. The Trailer Brake Power Control Module runs the program to detect an internal fault when power-up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range. The Diagnostic Trouble Code (DTC) will be set when the Trailer Brake Power Control Module has detected an internal malfunction.

OBDII Code C111A Chevrolet - Trailer Brake Power Control Module - AutoCodes.com — C111A Chevrolet Code - Trailer Brake Power Control Module

What does this mean?

What are the Possible Causes of the DTC C111A Chevrolet?

Faulty Trailer Brake Power Control Module

How to Fix the DTC C111A 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 C111A 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.

Need more information about the C111A Chevrolet code?

Need more information on how to fix the C111A Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C111A Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

C111A 2014 Chevrolet Silverado — Trailer Brake Power Control Module
C111A 2015 Chevrolet Silverado — Trailer Brake Power Control Module
C111A 2016 Chevrolet Silverado — Trailer Brake Power Control Module
C111A 2017 Chevrolet Silverado — Trailer Brake Power Control Module
C111A 2018 Chevrolet Silverado — Trailer Brake Power Control Module

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 C111A Chevrolet Code

1. What does the OBDII code C111A for Chevrolet indicate?

The code C111A typically refers to a problem with the Trailer Brake Power Control Module in Chevrolet vehicles.

2. What are common symptoms of a Trailer Brake Power Control Module issue?

Common symptoms include trailer brake system malfunctions, erratic trailer brake operation, and warning lights on the dashboard.

3. What could cause the C111A code to trigger in a Chevrolet?

The C111A code can be triggered by issues such as a faulty trailer brake power control module, damaged wiring, or poor electrical connections.

4. How can I diagnose a C111A code related to the Trailer Brake Power Control Module in my Chevrolet?

Diagnosing a C111A code may involve using a diagnostic scan tool to retrieve the specific fault codes, testing the trailer brake system components, and inspecting the wiring and connections.

5. Can I still drive my Chevrolet if the C111A code is present?

It is not recommended to drive your Chevrolet with an active C111A code, as it can affect the functionality of the trailer brake system and potentially compromise safety.

6. How can I repair a Trailer Brake Power Control Module issue causing the C111A code in my Chevrolet?

Repair options may include replacing the faulty trailer brake power control module, repairing damaged wiring, or addressing any electrical connection issues.

7. Are there any specific maintenance tips to prevent the C111A code from appearing in my Chevrolet?

Regularly inspecting the trailer brake system components, ensuring proper electrical connections, and following recommended maintenance schedules can help prevent issues leading to the C111A code.

8. Can a DIY enthusiast fix a C111A code related to the Trailer Brake Power Control Module in a Chevrolet?

While some simple checks and repairs may be possible for experienced DIY enthusiasts, diagnosing and repairing complex electrical issues related to the Trailer Brake Power Control Module may require professional assistance.

9. Is it important to address a C111A code promptly in a Chevrolet vehicle?

Yes, addressing the C111A code promptly is crucial to ensure the proper functioning of the trailer brake system and maintain overall vehicle safety.

10. How much does it typically cost to repair a Trailer Brake Power Control Module issue causing the C111A code in a Chevrolet?

The cost of repairs can vary depending on the exact cause of the issue, parts needed, and labor charges. It is advisable to consult a mechanic for an accurate estimate.