C1118 2017 Chevrolet Silverado Code - Trailer Brake Control Sensitivity Switch Circuit Malfunction
Quick Answer
The C1118 code on a 2017 Chevrolet Silverado indicates a problem with the trailer brake control sensitivity switch circuit. Common causes include Faulty trailer brake control sensitivity switch, Damaged wiring or connectors in the circuit, Corrosion or moisture intrusion in the trailer brake control system. 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 2017 Chevrolet Silverado indicates Trailer Brake Control Sensitivity Switch Circuit Malfunction.
- Common causes
- Common causes include Faulty trailer brake control sensitivity switch, Damaged wiring or connectors in the circuit, Corrosion or moisture intrusion in the trailer brake control system.
- 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 C1118 2017 Chevrolet Silverado Description
The C1118 code on a 2017 Chevrolet Silverado indicates a problem with the trailer brake control sensitivity switch circuit. This system is responsible for adjusting the sensitivity of the trailer brake controller, allowing the driver to fine-tune the braking force applied to the trailer. When this circuit malfunctions, it can lead to issues with the trailer brake system, affecting the vehicle's ability to safely stop when towing a trailer.
Common Causes of C1118 2017 Chevrolet Silverado
- Faulty trailer brake control sensitivity switch.
- Damaged wiring or connectors in the circuit.
- Corrosion or moisture intrusion in the trailer brake control system.
- Issues with the trailer brake controller module.
- Electrical problems in the vehicle's wiring harness.
Symptoms of C1118 2017 Chevrolet Silverado
- Illumination of the trailer brake warning light on the dashboard.
- Inconsistent or weak trailer brake response when towing.
- Trailer brakes locking up unexpectedly.
- Loss of trailer brake functionality.
- Abnormal braking behavior while towing a trailer.
How to Fix C1118 2017 Chevrolet Silverado
- Begin by conducting a thorough inspection of the trailer brake control sensitivity switch circuit to identify any visible damage or loose connections.
- Test the trailer brake control sensitivity switch using a multimeter to determine if it is functioning properly.
- Check for any corrosion or moisture in the circuit and clean or replace affected components as needed.
- Inspect the wiring harness for any signs of wear or damage, repairing or replacing any compromised sections.
- Reset the vehicle's onboard computer system to clear the C1118 code and test the trailer brake system to ensure proper functionality.
Cost to Fix C1118 2017 Chevrolet Silverado
The typical repair costs for addressing a trailer brake control sensitivity switch circuit malfunction can range from $150 to $500, depending on the extent of the issue and the specific parts that need to be replaced. This estimate includes both parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto repair shops for a more accurate estimate tailored to your specific situation.
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Frequently Asked Questions about C1118 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code C1118 in a 2017 Chevrolet Silverado related to the Trailer Brake Control Sensitivity Switch Circuit Malfunction?
The common symptoms include issues with the trailer brake control system, such as erratic trailer brake response or complete trailer brake failure.
2. What are the possible causes of OBDII code C1118 in a 2017 Chevrolet Silverado?
Possible causes include a faulty trailer brake control module, damaged wiring or connectors in the sensitivity switch circuit, or issues with the sensitivity switch itself.
3. How can I diagnose the source of the Trailer Brake Control Sensitivity Switch Circuit Malfunction in my 2017 Chevrolet Silverado?
To diagnose the issue, you can use an OBDII scanner to retrieve the specific trouble code, visually inspect the wiring and connectors for any damage, and test the sensitivity switch for proper functionality.
4. Is it safe to continue driving my 2017 Chevrolet Silverado with OBDII code C1118 indicating a Trailer Brake Control Sensitivity Switch Circuit Malfunction?
It is not recommended to drive the vehicle with this issue, as it can compromise the effectiveness of the trailer brake system and potentially lead to unsafe towing conditions.
5. Can I repair OBDII code C1118 in my 2017 Chevrolet Silverado related to the Trailer Brake Control Sensitivity Switch Circuit Malfunction myself?
Depending on your automotive repair skills, you may be able to address this issue yourself by checking and repairing any damaged wiring or connectors, or by replacing the sensitivity switch if necessary.
6. How much does it typically cost to repair OBDII code C1118 in a 2017 Chevrolet Silverado at a professional repair shop?
The cost of repair can vary depending on the exact cause of the issue and the labor rates of the repair shop, but it can range from a couple hundred to a few hundred dollars.
7. Can resetting the OBDII system clear the C1118 trouble code in a 2017 Chevrolet Silverado?
Resetting the OBDII system may temporarily clear the trouble code, but if the underlying issue causing the Trailer Brake Control Sensitivity Switch Circuit Malfunction is not addressed, the code is likely to reappear.
8. Will OBDII code C1118 in a 2017 Chevrolet Silverado cause the check engine light to illuminate?
While the check engine light may not directly illuminate due to this specific code, other warning lights related to the trailer brake system may light up on the dashboard.
9. Are there any recalls or technical service bulletins related to OBDII code C1118 in a 2017 Chevrolet Silverado?
It's recommended to check with a Chevrolet dealership or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are any relevant updates or remedies.
10. How important is it to address OBDII code C1118 indicating a Trailer Brake Control Sensitivity Switch Circuit Malfunction in a 2017 Chevrolet Silverado promptly?
It is crucial to address this issue promptly to ensure the proper functioning of the trailer brake system and maintain safe towing conditions with your Chevrolet Silverado.
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