AutoCodes – Chevrolet – C1116 2017 Chevrolet Silverado

C1116 2017 Chevrolet Silverado Code - Manual Trailer Brake Apply Request Signal 1 Malfunction

Quick Answer

The trailer brake control system has a control panel with the trailer gain and manual apply switches. Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control Switch 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
C1116 2017 Chevrolet Silverado indicates Manual Trailer Brake Apply Request Signal 1 Malfunction.
Common causes
Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control Switch 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 210
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 18, 2023
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Code C1116 2017 Chevrolet Silverado Description

The trailer brake control system has a control panel with the trailer gain and manual apply switches. The switches are located on the instrument panel to the left of the steering column. The control panel and switches allow you to adjust the amount of output, referred to as trailer gain, available to the electric trailer brakes and allow you to manually apply the trailer brakes. The trailer brake control panel and switches are used along with the trailer brake display page on the driver information center to adjust and display power output to the trailer brakes.
OBDII Code C1116 2017 Chevrolet Silverado - Manual Trailer Brake Apply Request Signal 1 Malfunction - AutoCodes.com
C1116 2017 Chevrolet Silverado Code - Manual Trailer Brake Apply Request Signal 1 Malfunction

What are the Possible Causes of the DTC C1116 2017 Chevrolet Silverado?

  • Faulty Trailer Brake Control Switch
  • Trailer Brake Control Switch harness is open or shorted
  • Trailer Brake Control Switch circuit poor electrical connection
  • Faulty Chassis Control Module-Auxiliary

How to Fix the DTC C1116 2017 Chevrolet Silverado?

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 C1116 2017 Chevrolet Silverado 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 C1116 2017 Chevrolet Silverado code?

Need more information on how to fix the C1116 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1116 2017 Chevrolet Silverado 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 C1116 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C1116 on a 2017 Chevrolet Silverado?

- The common symptoms include the manual trailer brake not functioning properly, the trailer brakes applying unexpectedly, and an illuminated warning light on the dashboard.

2. What could cause the Manual Trailer Brake Apply Request Signal 1 Malfunction in a 2017 Chevrolet Silverado?

- Possible causes of this issue may include a faulty trailer brake module, damaged wiring or connectors, or a problem with the brake control switch.

3. How can I diagnose the C1116 code on my 2017 Chevrolet Silverado?

- To diagnose this code, it is recommended to check the trailer brake module for any visible damage, inspect the wiring harness for any signs of wear or corrosion, and test the brake control switch for proper functionality.

4. Is it safe to drive my 2017 Chevrolet Silverado with the C1116 code present?

- It is not recommended to drive the vehicle with the C1116 code active, as it may affect the functionality of the trailer brakes and compromise safety while towing.

5. Can I repair the C1116 code on my 2017 Chevrolet Silverado myself?

- Depending on your level of expertise, you may be able to repair the issue yourself by checking the trailer brake module, inspecting the wiring, and testing the brake control switch. However, if you are unsure, it is best to consult a professional mechanic.

6. How much does it typically cost to repair the Manual Trailer Brake Apply Request Signal 1 Malfunction on a 2017 Chevrolet Silverado?

- The cost of repairing the C1116 code can vary depending on the exact cause of the issue. It is advisable to get a diagnostic from a mechanic to determine the specific repair needed and associated costs.

7. Will resetting the OBDII code C1116 on my 2017 Chevrolet Silverado make the issue go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Manual Trailer Brake Apply Request Signal 1 Malfunction.

8. Can extreme weather conditions trigger the C1116 code on a 2017 Chevrolet Silverado?

- Yes, extreme weather conditions such as heavy rain or snow can potentially damage the trailer brake module or affect the wiring, leading to the C1116 code being triggered.

9. Are there any preventive measures to avoid encountering the C1116 code on a 2017 Chevrolet Silverado?

- Regularly inspecting the trailer brake system, ensuring proper maintenance, and using high-quality trailer brake components can help prevent issues like the Manual Trailer Brake Apply Request Signal 1 Malfunction.

10. How urgent is it to address the Manual Trailer Brake Apply Request Signal 1 Malfunction on a 2017 Chevrolet Silverado?

- It is recommended to address the issue promptly to ensure the safe operation of the trailer brakes while towing. Ignoring the C1116 code can lead to potential safety hazards and further damage.

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