AutoCodes – Hyundai – C1161 Hyundai

C1161 Hyundai Code - Brake Light Switch Failure

Quick Answer

The brake light switch indicates brake pedal status to the ABS control unit. Common causes include Faulty Brake Light Switch, Brake Light Switch harness is open or shorted, Brake Light 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
C1161 Hyundai indicates Brake Light Switch Failure.
Common causes
Common causes include Faulty Brake Light Switch, Brake Light Switch harness is open or shorted, Brake Light 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.
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Code Popularity 2,928
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 19, 2020
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Code C1161 Hyundai Description

The brake light switch indicates brake pedal status to the ABS control unit. The switch is turned on when the brake is applied. The brake light switch is a normally-open contact which runs to battery voltage when active (brake operated). When passive (brake not operated), the cable is grounded via the brake light bulbs. The brake light switch is not monitored if the valve relay drops out, or in the event of low voltage or overvoltage.
OBDII Code C1161 Hyundai - Brake Light Switch Failure - AutoCodes.com
C1161 Hyundai Code - Brake Light Switch Failure

What are the Possible Causes of the DTC C1161 Hyundai?

  • Faulty Brake Light Switch
  • Brake Light Switch harness is open or shorted
  • Brake Light Switch circuit poor electrical connection

How to Fix the DTC C1161 Hyundai?

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 C1161 Hyundai 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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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 C1161 Hyundai Code

1. What does the OBDII code C1161 mean on a Hyundai?

The C1161 code indicates a "Brake Light Switch Failure," meaning the vehicle's brake light switch is malfunctioning or not sending the correct signal.

2. What are the common symptoms of a C1161 code in a Hyundai?

Symptoms may include the brake lights not working, ABS or ESC warning lights on the dashboard, and potential issues with cruise control disengaging.

3. What causes the C1161 code to appear on a Hyundai?

Common causes include a faulty brake light switch, damaged or corroded wiring, a misaligned switch, or issues with the brake pedal position sensor.

4. How can I diagnose a C1161 code in my Hyundai?

Start by checking the brake light switch for proper operation, inspect the wiring and connectors for damage, and verify the brake lights function correctly.

5. Can I drive my Hyundai with a C1161 code?

Driving is possible, but it is not recommended since the brake lights may not work, and safety features like ABS and ESC could be compromised.

6. How do I fix a C1161 code on a Hyundai?

The most common fix is replacing the faulty brake light switch. Ensure proper alignment and inspect the wiring for any damage before completing the repair.

7. How much does it cost to repair a C1161 code on a Hyundai?

Replacing a brake light switch typically costs between $50 and $150, including parts and labor, depending on the model and location.

8. Will the C1161 code clear itself after the repair?

The code may clear itself after the brake light switch is fixed, but in some cases, you may need to use an OBDII scanner to manually clear it.

9. Can a C1161 code affect other systems in my Hyundai?

Yes, the code can impact systems like ABS, ESC, and cruise control, which rely on proper brake light switch functionality.

10. How can I prevent a C1161 code from recurring?

Regularly inspect the brake light switch and its wiring for wear or damage, and ensure the switch is properly adjusted to the brake pedal.

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