C1118 2018 Chevrolet Silverado Code - Trailer Brake Control Sensitivity Switch Circuit 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
- C1118 2018 Chevrolet Silverado indicates Trailer Brake Control Sensitivity Switch Circuit 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 C1118 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC C1118 2018 Chevrolet Silverado?
- 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 C1118 2018 Chevrolet Silverado?
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 C1118 2018 Chevrolet Silverado 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.
Need more information about the C1118 2018 Chevrolet Silverado code?
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Frequently Asked Questions about C1118 2018 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code C1118 in a 2018 Chevrolet Silverado?
The common symptoms of OBDII code C1118 in a 2018 Chevrolet Silverado include issues with the trailer brake control system, such as erratic trailer brake response or complete loss of trailer brake function.
2. What does the OBDII code C1118 on a 2018 Chevrolet Silverado indicate?
OBDII code C1118 on a 2018 Chevrolet Silverado indicates a Trailer Brake Control Sensitivity Switch Circuit Malfunction.
3. What are the possible causes of OBDII code C1118 in a 2018 Chevrolet Silverado?
Possible causes of OBDII code C1118 in a 2018 Chevrolet Silverado include a faulty trailer brake control module, damaged wiring or connectors in the trailer brake system, or a malfunctioning sensitivity switch.
4. How can I diagnose the OBDII code C1118 in a 2018 Chevrolet Silverado?
Diagnosing OBDII code C1118 in a 2018 Chevrolet Silverado involves using a diagnostic scan tool to check for the specific code, inspecting the trailer brake control system components for any visible damage, and testing the sensitivity switch for proper functionality.
5. Can I still drive my 2018 Chevrolet Silverado with OBDII code C1118?
It is not recommended to drive your 2018 Chevrolet Silverado with OBDII code C1118, as it may affect the trailer brake control system's performance and compromise safety while towing a trailer.
6. How can I repair OBDII code C1118 on a 2018 Chevrolet Silverado?
Repairing OBDII code C1118 on a 2018 Chevrolet Silverado may involve replacing the faulty trailer brake control module, repairing or replacing damaged wiring or connectors, or adjusting or replacing the sensitivity switch as needed.
7. Is it possible to reset OBDII code C1118 on a 2018 Chevrolet Silverado without repairs?
Resetting OBDII code C1118 on a 2018 Chevrolet Silverado without addressing the underlying issue may temporarily clear the code, but the problem will likely reoccur until the root cause is fixed.
8. Can a DIY enthusiast fix OBDII code C1118 in a 2018 Chevrolet Silverado?
While some DIY enthusiasts may have the skills to diagnose and repair OBDII code C1118 in a 2018 Chevrolet Silverado, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure safety and functionality.
9. Will OBDII code C1118 on a 2018 Chevrolet Silverado affect vehicle performance?
OBDII code C1118 on a 2018 Chevrolet Silverado primarily affects the trailer brake control system's performance and does not directly impact the vehicle's engine or drivability.
10. How can I prevent OBDII code C1118 from occurring in my 2018 Chevrolet Silverado?
To prevent OBDII code C1118 in a 2018 Chevrolet Silverado, regular maintenance of the trailer brake control system is essential, including inspecting wiring, connectors, and sensitivity switch for any signs of wear or damage.
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