C1117 Code - Manual Trailer Brake Apply Request Signal 2 Malfunction
Quick Answer
The diagnostic trouble code C1117 indicates a Manual Trailer Brake Apply Request Signal 2 Malfunction. Common causes include Faulty wiring or connectors in the trailer brake system, Malfunctioning brake control module in the vehicle, Damage to the trailer brake system components. 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 indicates Manual Trailer Brake Apply Request Signal 2 Malfunction.
- Common causes
- Common causes include Faulty wiring or connectors in the trailer brake system, Malfunctioning brake control module in the vehicle, Damage to the trailer brake system components.
- 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 C1117 Description
The diagnostic trouble code C1117 indicates a Manual Trailer Brake Apply Request Signal 2 Malfunction. This code is typically found in vehicles equipped with a trailer brake system, which allows the driver to manually apply the brakes on a trailer being towed. The signal malfunction referred to in this code means that there is an issue with the communication between the vehicle's brake control module and the trailer brake system. This can result in the trailer brakes not functioning properly or not responding to manual brake requests from the driver.
Common Causes of C1117
- Faulty wiring or connectors in the trailer brake system
- Malfunctioning brake control module in the vehicle
- Damage to the trailer brake system components
- Corrosion or poor connections in the electrical system
- Issues with the trailer brake controller settings
Symptoms of C1117
- Warning lights on the dashboard related to the trailer brake system
- Inconsistent or delayed response from the trailer brakes when manually applied
- Poor braking performance when towing a trailer
- Unexpected trailer sway or instability while braking
How to Fix C1117
- Begin by conducting a visual inspection of the trailer brake system wiring and connectors to check for any visible damage or corrosion. Repair or replace any faulty components.
- Use a diagnostic scanner to check for error codes and troubleshoot the communication between the vehicle's brake control module and the trailer brake system.
- Test the trailer brake system by manually applying the brakes to ensure they respond correctly. Adjust the settings on the trailer brake controller as needed.
- If the issue persists, consider replacing the brake control module in the vehicle or any damaged components in the trailer brake system.
- After completing the repairs, clear the error codes and perform a test drive to confirm that the issue has been resolved.
Cost to Fix C1117
The cost of repairing a Manual Trailer Brake Apply Request Signal 2 Malfunction can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, parts and labor for this type of repair can range from $200 to $500. However, it's important to note that diagnostic time and labor rates at auto repair shops can fluctuate based on factors such as location, vehicle make and model, and engine type. Rates typically fall between $80 and $150 per hour, with higher rates in metropolitan areas or at dealerships, and lower rates at independent shops. For a more accurate estimate, it's recommended to obtain quotes from local auto repair shops.
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Code C1117 Information for Specific Makes
- C1117 Buick — Manual Trailer Brake Apply Request Signal 2 Malfunction
- C1117 Cadillac — Manual Trailer Brake Apply Request Signal 2 Malfunction
- C1117 Chevrolet — Manual Trailer Brake Apply Request Signal 2 Malfunction
- C1117 GMC — Manual Trailer Brake Apply Request Signal 2 Malfunction
Frequently Asked Questions about C1117 Code
1. What are the common symptoms of OBDII code C1117 (Manual Trailer Brake Apply Request Signal 2 Malfunction)?
- Common symptoms include the trailer brakes not engaging properly or at all, the trailer brake warning light on the dashboard illuminating, and potential issues with the trailer brake system.
2. What are the possible causes of OBDII code C1117?
- Possible causes include faulty wiring in the trailer brake system, a malfunctioning trailer brake controller, poor electrical connections, or issues with the brake switch.
3. How can I diagnose the cause of OBDII code C1117?
- Diagnose by inspecting the trailer brake wiring for damage, testing the trailer brake controller for proper function, checking electrical connections for corrosion, and ensuring the brake switch is working correctly.
4. Can driving with OBDII code C1117 cause further damage?
- Driving with this code may lead to ineffective trailer braking, potentially compromising safety while towing. It is advisable to address the issue promptly.
5. How can I repair OBDII code C1117?
- Repair options include fixing or replacing damaged wiring, repairing or replacing the trailer brake controller, cleaning or securing electrical connections, and replacing a faulty brake switch if necessary.
6. Is it safe to continue using the trailer with OBDII code C1117 present?
- It is not recommended to continue using the trailer until the issue causing the code is identified and resolved to ensure safe operation of the trailer brakes.
7. Can a malfunctioning trailer brake apply request signal affect the vehicle's overall braking system?
- While the issue primarily affects the trailer's braking system, a malfunctioning trailer brake apply request signal can potentially impact the overall braking performance of the vehicle while towing.
8. How can I prevent OBDII code C1117 from reoccurring?
- Regularly inspect and maintain the trailer brake system, ensure proper installation of components, and address any issues promptly to prevent the code from reoccurring.
9. Are there specific tools needed to diagnose and repair OBDII code C1117?
- Basic tools such as a multimeter, wire strippers, and electrical tape may be required to diagnose and repair issues related to OBDII code C1117 in the trailer brake system.
10. Can a professional mechanic help diagnose and repair OBDII code C1117?
- Yes, a professional mechanic with experience in trailer brake systems can efficiently diagnose and repair OBDII code C1117 to ensure proper functioning of the trailer brakes.
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