C1116 2016 GMC Sierra Code - Manual Trailer Brake Apply Request Signal 1 Malfunction
Quick Answer
The C1116 code for a 2016 GMC Sierra indicates a malfunction in the manual trailer brake apply request signal 1. Common causes include Faulty manual trailer brake controller, Wiring issues or shorts in the trailer brake system, Malfunctioning brake actuator in the trailer. 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 2016 GMC Sierra indicates Manual Trailer Brake Apply Request Signal 1 Malfunction.
- Common causes
- Common causes include Faulty manual trailer brake controller, Wiring issues or shorts in the trailer brake system, Malfunctioning brake actuator in the trailer.
- 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 C1116 2016 GMC Sierra Description
The C1116 code for a 2016 GMC Sierra indicates a malfunction in the manual trailer brake apply request signal 1. This means that there is an issue with the signal being sent from the manual trailer brake controller to the vehicle's braking system. This can result in the trailer brakes not engaging properly when requested, leading to potential safety concerns while towing.
Common Causes of C1116 2016 GMC Sierra
- Faulty manual trailer brake controller.
- Wiring issues or shorts in the trailer brake system.
- Malfunctioning brake actuator in the trailer.
- Corrosion or damage to electrical connections related to the trailer brake system.
- Issues with the vehicle's brake control module.
Symptoms of C1116 2016 GMC Sierra
- Trailer brakes not engaging when manually activated.
- Uneven braking between the vehicle and trailer.
- Warning lights related to the trailer brake system appearing on the dashboard.
- Decreased braking performance while towing a trailer.
- Inconsistent braking response from the trailer.
How to Fix C1116 2016 GMC Sierra
- Begin by checking the manual trailer brake controller for any visible damage or malfunctions.
- Inspect the wiring and connections in the trailer brake system for any signs of damage or corrosion.
- Test the brake actuator in the trailer to ensure it is functioning properly.
- Check the vehicle's brake control module for any fault codes or malfunctions.
- Replace or repair any components that are found to be faulty in the manual trailer brake system.
Cost to Fix C1116 2016 GMC Sierra
The cost estimate for repairing a Manual Trailer Brake Apply Request Signal 1 Malfunction in a 2016 GMC Sierra can vary depending on the specific issue causing the code and the labor rates in your area. On average, the repair for this type of issue can range from $100 to $500, including parts and labor. However, it's important to note that additional diagnostic time may be needed to pinpoint the exact cause of the problem, which can increase the overall cost. It is recommended to get quotes from local auto repair shops to get a more accurate estimate.
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Frequently Asked Questions about C1116 2016 GMC Sierra Code
What does the OBDII code C1116 mean on a 2016 GMC Sierra?
Code C1116 indicates a malfunction in the Manual Trailer Brake Apply Request Signal 1, suggesting an issue with the trailer brake system's manual operation.
What are common symptoms of code C1116 on a 2016 GMC Sierra?
Common symptoms include reduced or no manual trailer brake function, a brake warning light on the dashboard, or a trailer brake system error message.
What causes code C1116 on a 2016 GMC Sierra?
Possible causes include a faulty trailer brake control module, damaged wiring or connectors in the trailer brake system, or a malfunctioning manual brake lever or switch.
Can code C1116 affect trailer braking performance?
Yes, this code can impact manual trailer braking, potentially reducing control and safety when towing a trailer that requires manual brake inputs.
How can I diagnose code C1116 on a 2016 GMC Sierra?
Start by inspecting the trailer brake control module, manual brake lever, and associated wiring and connectors for damage, corrosion, or loose connections.
Is it safe to drive with code C1116 on a 2016 GMC Sierra?
While you can drive, towing a trailer without proper manual brake functionality can be unsafe. It's recommended to address the issue promptly.
How do I fix code C1116 on a 2016 GMC Sierra?
Repairs may involve replacing a damaged trailer brake control module, repairing or replacing faulty wiring, or servicing the manual brake lever assembly.
Can a faulty trailer brake control module cause code C1116?
Yes, a malfunctioning trailer brake control module is a common cause of this code and can disrupt the signal for manual trailer brake application.
How much does it cost to repair code C1116 on a 2016 GMC Sierra?
Repair costs vary but typically range from $100 to $500 depending on whether the issue is with the module, wiring, or manual brake lever.
Can I clear code C1116 without repairing the issue?
Clearing the code without addressing the root cause may temporarily remove the warning, but the problem will likely persist and may re-trigger the code.
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