Engine-CodesBuick – C1117 Buick

C1117 Buick Code - Manual Trailer Brake Apply Request Signal 2 Malfunction

Quick Answer

The C1117 Buick code indicates a malfunction in the Manual Trailer Brake Apply Request Signal 2. Common causes include Faulty Manual Trailer Brake Apply Request Signal 2 sensor, Wiring issues or shorts in the trailer brake system, Corrosion or damage to connectors in the brake system. 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
C1117 Buick indicates Manual Trailer Brake Apply Request Signal 2 Malfunction.
Common causes
Common causes include Faulty Manual Trailer Brake Apply Request Signal 2 sensor, Wiring issues or shorts in the trailer brake system, Corrosion or damage to connectors in the brake system.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code C1117 Buick Description

The C1117 Buick code indicates a malfunction in the Manual Trailer Brake Apply Request Signal 2. This signal is responsible for activating the trailer brakes when the driver manually applies the brakes while towing a trailer. When this signal malfunctions, it can affect the vehicle's ability to control the trailer's braking system, potentially leading to unsafe driving conditions.

OBDII Code C1117 Buick - Manual Trailer Brake Apply Request Signal 2 Malfunction
C1117 Buick Code - Manual Trailer Brake Apply Request Signal 2 Malfunction

Common Causes of C1117 Buick

  1. Faulty Manual Trailer Brake Apply Request Signal 2 sensor
  2. Wiring issues or shorts in the trailer brake system
  3. Corrosion or damage to connectors in the brake system
  4. Malfunctioning trailer brake controller
  5. Issues with the vehicle's brake system affecting the signal transmission

Symptoms of C1117 Buick

  1. Inconsistent trailer braking response
  2. Trailer swaying or instability while braking
  3. Delayed trailer brake engagement
  4. Illumination of the brake warning light on the dashboard

How to Fix C1117 Buick

  1. Perform a thorough inspection of the trailer brake system and wiring to identify any faults or damage.
  2. Test the Manual Trailer Brake Apply Request Signal 2 sensor for proper functionality and replace if necessary.
  3. Check and repair any wiring issues or shorts in the trailer brake system.
  4. Inspect and clean connectors in the brake system to ensure proper signal transmission.
  5. Test the trailer brake controller and replace if it is found to be malfunctioning.

Cost to Fix C1117 Buick

The typical repair costs for addressing the C1117 Buick code can range from $200 to $500, depending on the specific cause of the issue and the parts needed for repair. This estimate includes parts and labor, but actual costs may vary based on the location, vehicle make and model, and the rates of the auto repair shop. It is advisable to consult with a professional mechanic to get an accurate estimate for the repair.

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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 C1117 Buick Code

What are the common symptoms of OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- Common symptoms include issues with trailer brake functionality, abnormal brake system behavior, and the illumination of the brake warning light on the dashboard.

What are the possible causes of OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- Possible causes may include faulty wiring or connections related to the trailer brake system, a malfunctioning trailer brake controller, or issues with the brake switch.

How can I diagnose the Manual Trailer Brake Apply Request Signal 2 Malfunction in a Buick triggering OBDII code C1117?

- Diagnosis typically involves inspecting the trailer brake system components, checking for any visible damage or loose connections, testing the trailer brake controller, and using a diagnostic scanner to read the specific fault codes.

What are some repair tips for addressing OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- Repair tips may include repairing or replacing damaged wiring or connectors, ensuring proper installation and function of the trailer brake controller, and verifying the correct operation of the brake switch.

Can OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction be safely ignored?

- Ignoring this code may result in potential safety hazards or issues with the trailer brake system, so it is recommended to address the underlying problem promptly.

Is it safe to continue driving my Buick with OBDII code C1117 related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- It is advisable to avoid towing trailers or heavy loads until the issue is resolved to prevent any potential brake system failures or safety risks while driving.

Do I need a professional mechanic to fix OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- While some DIY enthusiasts may be able to troubleshoot and repair the issue, seeking help from a qualified mechanic or technician is recommended for accurate diagnosis and proper resolution of the problem.

What are the possible implications of ignoring OBDII code C1117 in a Buick related to Manual Trailer Brake Apply Request Signal 2 Malfunction?

- Ignoring this code may lead to compromised brake performance, potential safety risks while towing, and the possibility of causing further damage to the trailer brake system components.

Discuss the causes and fixes for C1117 Buick OBDII Code

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