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Engine-Codes – Lincoln – C111B Lincoln

C111B Lincoln Code - Left Stop Lamp Circuit

Quick Answer

The C111B diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to an issue with the left stop lamp circuit. Common causes include Faulty brake light bulb, Damaged or corroded wiring in the left stop lamp circuit, Blown fuse related to the stop lamp circuit. 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
C111B Lincoln indicates Left Stop Lamp Circuit.
Common causes
Common causes include Faulty brake light bulb, Damaged or corroded wiring in the left stop lamp circuit, Blown fuse related to the stop lamp circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code C111B Lincoln Description

The C111B diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to an issue with the left stop lamp circuit. This code indicates that there is a malfunction or fault in the electrical circuit that controls the left stop lamp, which is the brake light located on the left side of the vehicle. The stop lamp circuit is an essential safety feature that alerts other drivers when you are braking, helping to prevent rear-end collisions.

OBDII Code C111B Lincoln - Left Stop Lamp Circuit
C111B Lincoln Code - Left Stop Lamp Circuit

Common Causes of C111B Lincoln

  1. Faulty brake light bulb.
  2. Damaged or corroded wiring in the left stop lamp circuit.
  3. Blown fuse related to the stop lamp circuit.
  4. Malfunctioning brake light switch.
  5. Issue with the vehicle's body control module.

Symptoms of C111B Lincoln

  1. Left brake light not illuminating when the brake pedal is pressed.
  2. Dashboard warning light indicating a brake light malfunction.
  3. Rapid flashing of the left brake light.
  4. Dim or flickering left brake light.

How to Fix C111B Lincoln

  1. Inspect the left brake light bulb and replace if necessary.
  2. Check the wiring harness for any damage or corrosion, repairing or replacing as needed.
  3. Test the fuse related to the stop lamp circuit and replace if blown.
  4. Verify the operation of the brake light switch and replace if faulty.
  5. Scan the vehicle's computer system to clear the DTC and ensure the left stop lamp circuit is functioning properly.

Cost to Fix C111B Lincoln

The cost of repairing the left stop lamp circuit on a Lincoln vehicle can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $50 to $200 for parts and labor to address this problem. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from local shops for a more accurate estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for C111B Lincoln

C111B:11 Left Stop Lamp: Circuit Short to Ground

C111B:15 Left Stop Lamp: Circuit Short to Battery or Open

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C111B Lincoln Code

1. What are the common symptoms of OBDII code C111B in a Lincoln related to the Left Stop Lamp Circuit?

The common symptoms include the left stop lamp failing to illuminate when the brake pedal is pressed, causing a potential safety hazard.

2. What are the possible causes of OBDII code C111B in a Lincoln related to the Left Stop Lamp Circuit?

Possible causes include a faulty left stop lamp bulb, a damaged wiring harness, a defective stop lamp switch, or a problem with the body control module.

3. How can I diagnose the issue triggering OBDII code C111B in a Lincoln related to the Left Stop Lamp Circuit?

You can start by visually inspecting the left stop lamp bulb and wiring harness for any visible damage. Using a multimeter to test for continuity and voltage can help pinpoint the exact issue.

4. Is it safe to continue driving my Lincoln with OBDII code C111B related to the Left Stop Lamp Circuit illuminated?

It is not recommended to drive the vehicle with malfunctioning brake lights, as it can pose a safety risk to you and other drivers on the road. Promptly address the issue to ensure proper brake light functionality.

5. Can I repair OBDII code C111B in a Lincoln related to the Left Stop Lamp Circuit myself?

If you have experience working with automotive electrical systems and access to the necessary tools, you may be able to repair the issue yourself by replacing the faulty bulb, repairing damaged wiring, or fixing the stop lamp switch.

6. How much does it typically cost to fix OBDII code C111B in a Lincoln related to the Left Stop Lamp Circuit?

The cost of repair can vary depending on the exact cause of the issue and whether you choose to address it yourself or take it to a professional mechanic. Costs may range from a few dollars for a replacement bulb to a few hundred dollars for more extensive repairs.

7. Will resetting the OBDII code C111B related to the Left Stop Lamp Circuit make the issue go away?

Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the issue. It's important to diagnose and address the root cause to prevent the code from reappearing.

8. Can a Lincoln dealership or auto repair shop help me diagnose and repair OBDII code C111B related to the Left Stop Lamp Circuit?

Yes, a dealership or auto repair shop with experience working on Lincoln vehicles should be able to diagnose and repair the issue related to the Left Stop Lamp Circuit code effectively.

9. Are there any preventive measures I can take to avoid OBDII code C111B related to the Left Stop Lamp Circuit in my Lincoln?

Regularly checking and replacing brake light bulbs, inspecting wiring for damage, and maintaining the vehicle's electrical system can help prevent issues leading to the Left Stop Lamp Circuit code.

10. How long does it typically take to repair OBDII code C111B related to the Left Stop Lamp Circuit in a Lincoln?

The repair time can vary depending on the complexity of the issue. Simple fixes like replacing a bulb may take only a few minutes, while more involved repairs could take an hour or more.

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