C1118 2016 Chevrolet Silverado Code - Trailer Brake Control Sensitivity Switch Circuit Malfunction
Quick Answer
The C1118 code on a 2016 Chevrolet Silverado indicates a malfunction in the trailer brake control sensitivity switch circuit. Common causes include Faulty trailer brake control sensitivity switch, Wiring issues in the circuit, Corrosion or damage to electrical connections. 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 2016 Chevrolet Silverado indicates Trailer Brake Control Sensitivity Switch Circuit Malfunction.
- Common causes
- Common causes include Faulty trailer brake control sensitivity switch, Wiring issues in the circuit, Corrosion or damage to electrical connections.
- 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 2016 Chevrolet Silverado Description
The C1118 code on a 2016 Chevrolet Silverado indicates a malfunction in the trailer brake control sensitivity switch circuit. This system is responsible for adjusting the sensitivity of the trailer brakes based on the weight and load of the trailer being towed. When this circuit malfunctions, it can lead to issues with the trailer brake system, affecting the vehicle's ability to safely stop the trailer.
Common Causes of C1118 2016 Chevrolet Silverado
- Faulty trailer brake control sensitivity switch
- Wiring issues in the circuit
- Corrosion or damage to electrical connections
- Faulty trailer brake controller module
- Issues with the vehicle's electronic brake control module
Symptoms of C1118 2016 Chevrolet Silverado
- Trailer brakes not engaging properly
- Inconsistent braking performance while towing
- Trailer swaying or fishtailing
- ABS warning light illuminated on the dashboard
How to Fix C1118 2016 Chevrolet Silverado
- Begin by inspecting the trailer brake control sensitivity switch and its wiring for any visible damage or corrosion.
- Test the switch using a multimeter to determine if it is functioning correctly.
- Check the wiring harness for any breaks or shorts, repairing or replacing as necessary.
- Inspect the trailer brake controller module for any faults and replace if needed.
- Clear the trouble code from the vehicle's computer using a diagnostic scanner.
Cost to Fix C1118 2016 Chevrolet Silverado
The typical repair costs for addressing a C1118 code on a 2016 Chevrolet Silverado can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact repair costs. It's advisable to consult with a trusted mechanic or repair shop for a more accurate estimate based on your specific circumstances.
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Frequently Asked Questions about C1118 2016 Chevrolet Silverado Code
1. What does the OBDII code C1118 mean on a 2016 Chevrolet Silverado?
C1118 indicates a malfunction in the Trailer Brake Control Sensitivity Switch Circuit, which is responsible for adjusting the trailer brake force based on driver input.
2. What are the common symptoms of code C1118 on a Chevrolet Silverado?
Symptoms may include a Trailer Brake System warning message, inability to adjust trailer brake sensitivity, and reduced or inconsistent trailer braking performance.
3. What causes the C1118 code to appear on a 2016 Silverado?
Common causes include a faulty trailer brake sensitivity switch, damaged wiring or connector issues in the switch circuit, or a malfunction in the trailer brake control module.
4. Can a defective trailer brake control module trigger code C1118?
Yes, a malfunctioning trailer brake control module can cause this code, as it plays a key role in processing the sensitivity switch signals.
5. How do I diagnose the C1118 code on a Chevrolet Silverado?
Start by inspecting the trailer brake sensitivity switch and its wiring for damage, corrosion, or loose connections. Use a scan tool to test the functionality of the switch and check for additional codes.
6. Can I still drive my Silverado with the C1118 code active?
Yes, you can still drive the vehicle, but towing a trailer could be unsafe due to impaired braking control. Address the issue before towing.
7. How do I fix the C1118 code on a 2016 Chevrolet Silverado?
Repairs may include replacing the trailer brake sensitivity switch, repairing damaged wiring or connectors, or reprogramming or replacing the trailer brake control module.
8. Is the C1118 code a common issue on 2016 Silverado models?
It’s not extremely common, but it can occur in vehicles that frequently tow trailers, as wear on the trailer brake components may lead to faults.
9. How much does it cost to repair the C1118 code on a Chevrolet Silverado?
Repair costs vary depending on the specific issue. Replacing the sensitivity switch can cost $50-$150 for parts, plus labor, while module replacement or wiring repairs may cost more.
10. Can a blown fuse cause the C1118 code on my Silverado?
Yes, a blown fuse in the trailer brake system circuit can disrupt the sensitivity switch operation and trigger the code. Always check fuses during diagnosis.
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