C1115 2017 GMC Sierra Code - Manual Trailer Brake Apply Request Switch Signal
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
- C1115 2017 GMC Sierra indicates Manual Trailer Brake Apply Request Switch Signal.
- 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 C1115 2017 GMC Sierra Description
What are the Possible Causes of the DTC C1115 2017 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 C1115 2017 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.
Code Tech Notes
C1115:5A Manual Trailer Brake Apply Request Switch Signal Plausibility Failure
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1115 2017 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 C1115 2017 GMC Sierra Code
1. What are common symptoms of OBDII code C1115 in a 2017 GMC Sierra related to the Manual Trailer Brake Apply Request Switch Signal?
- The most common symptom is the inability to manually apply the trailer brake, even when the switch is activated.
2. What can cause the OBDII code C1115 in a 2017 GMC Sierra?
- The code may be triggered by a faulty manual trailer brake apply request switch or issues with the wiring and connections associated with the switch.
3. How can I diagnose the cause of OBDII code C1115 in my 2017 GMC Sierra?
- To diagnose the issue, you can start by checking the wiring and connections related to the manual trailer brake apply request switch for any damage or loose connections.
4. Is it safe to continue driving my 2017 GMC Sierra with the OBDII code C1115?
- It is not recommended to drive the vehicle with this code active, as it may affect the trailer brake system's functionality, especially in emergency situations.
5. Can I reset the OBDII code C1115 in my 2017 GMC Sierra on my own?
- You can try resetting the code with an OBDII scanner, but it is important to diagnose and fix the underlying issue to prevent the code from reoccurring.
6. What are some repair tips for addressing OBDII code C1115 in a 2017 GMC Sierra?
- Check the manual trailer brake apply request switch and its connections first, as this is often the culprit. Ensure the switch is functioning properly and replace if necessary.
7. Will replacing the manual trailer brake apply request switch resolve the OBDII code C1115 in a 2017 GMC Sierra?
- In many cases, replacing the faulty switch will resolve the issue. However, it is essential to verify the switch's functionality before replacement.
8. How much does it typically cost to repair OBDII code C1115 in a 2017 GMC Sierra?
- The cost of repair can vary depending on the exact cause of the issue. Replacing the manual trailer brake apply request switch may cost anywhere from $50 to $150, including labor.
9. Can extreme weather conditions impact the triggering of OBDII code C1115 in a 2017 GMC Sierra?
- Yes, extreme weather conditions such as moisture or extreme temperatures can affect the switch's performance and wiring connections, potentially triggering the code.
10. Is it necessary to visit a dealership for servicing OBDII code C1115 in a 2017 GMC Sierra?
- While a dealership may have specialized knowledge, an experienced mechanic or technician can also diagnose and repair the issue related to the manual trailer brake apply request switch signal.
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