C1117 2016 GMC Sierra Code - Manual Trailer Brake Apply Request Signal 2 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
- C1117 2016 GMC Sierra indicates Manual Trailer Brake Apply Request Signal 2 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.
Code C1117 2016 GMC Sierra Description
What are the Possible Causes of the DTC C1117 2016 GMC Sierra?
- 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 C1117 2016 GMC Sierra?
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 C1117 2016 GMC Sierra 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.
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Frequently Asked Questions about C1117 2016 GMC Sierra Code
What does the OBDII code C1117 mean in a 2016 GMC Sierra?
C1117 indicates a malfunction in the Manual Trailer Brake Apply Request Signal 2, which typically relates to the trailer brake system and its communication with the vehicle's control modules.
What are the common symptoms of the C1117 code?
Common symptoms may include warning lights on the dashboard, loss of trailer brake functionality, and possible erratic behavior of the trailer brake controller.
What could cause the C1117 code to trigger?
Causes may include a faulty trailer brake controller, damaged wiring or connectors related to the brake system, or issues with the vehicle’s body control module.
How can I diagnose the C1117 code?
Start by checking for any visible damage to wiring and connectors associated with the trailer brake system. Then, use a scan tool to assess if there are any additional trouble codes present that could provide more context.
What are some common repair tips for the C1117 code?
Repair tips include inspecting and repairing or replacing any damaged wiring or connectors, checking the trailer brake controller for proper operation, and ensuring all relevant fuses are intact.
Is it safe to drive with the C1117 code present?
While it may be possible to drive, it’s not recommended as you could lose trailer braking capability, which poses safety risks. It's best to address the issue before towing.
Can I clear the C1117 code without fixing the problem?
You can clear the code using an OBDII scanner, but if the underlying issue isn't resolved, the code will likely reappear after a short period of driving.
Will a faulty manual trailer brake controller cause the C1117 code?
Yes, a malfunctioning manual trailer brake controller is a common cause of the C1117 code, as it may not send the correct signals to the vehicle's system.
What should I do if I can't find the issue causing the C1117 code?
If you are unable to identify the problem, it’s advisable to consult a qualified mechanic or technician who can conduct a more thorough diagnostic using specialized tools.
Discuss the causes and fixes for C1117 2016 GMC Sierra OBDII Code
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