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Engine-Codes – Generic – C1446

C1446 Code - Park Brake Switch Circuit Failure

Quick Answer

The diagnostic trouble code C1446 indicates a Park Brake Switch Circuit Failure. Common causes include Faulty park brake switch, Damaged or corroded wiring in the circuit, Issues with the brake control module. 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
C1446 indicates Park Brake Switch Circuit Failure.
Common causes
Common causes include Faulty park brake switch, Damaged or corroded wiring in the circuit, Issues with the brake control module.
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 07, 2024
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Code C1446 Description

The diagnostic trouble code C1446 indicates a Park Brake Switch Circuit Failure. The park brake switch is an essential component of the vehicle's parking brake system, responsible for indicating when the parking brake is engaged or disengaged. When this circuit fails, it can lead to various issues with the vehicle's parking brake system, affecting overall performance and safety.

OBDII Code C1446 - Park Brake Switch Circuit Failure
C1446 Code - Park Brake Switch Circuit Failure

Common Causes of C1446

  1. Faulty park brake switch
  2. Damaged or corroded wiring in the circuit
  3. Issues with the brake control module
  4. Loose connections in the circuit
  5. Water or debris intrusion affecting the circuit

Symptoms of C1446

  1. Dashboard warning lights related to the parking brake system
  2. Inability to engage or disengage the parking brake
  3. Parking brake not holding the vehicle in place on inclines
  4. Unusual noises or vibrations when using the parking brake

How to Fix C1446

  1. Diagnose the issue by checking the park brake switch, wiring, and brake control module for faults.
  2. Replace the faulty park brake switch if necessary.
  3. Repair or replace any damaged wiring in the circuit.
  4. Check and tighten any loose connections in the circuit.
  5. Clear any water or debris that may be affecting the circuit.

Cost to Fix C1446

The typical repair costs for a park brake switch circuit failure can range from $150 to $400, depending on the extent of the issue and the specific components that need to be replaced. Additional costs may include labor charges, which can vary depending on the repair shop's hourly rates and the time required to diagnose and fix the problem. It's advisable to consult with a qualified mechanic to get an accurate estimate for your specific vehicle.

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Code C1446 Information for Specific Makes

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 C1446 Code

1. What are the common symptoms of OBDII code C1446 (Park Brake Switch Circuit Failure)?

- Common symptoms include the parking brake warning light staying illuminated on the dashboard and potential issues with the parking brake system's functionality.

2. What can cause the OBDII code C1446 to trigger?

- The code C1446 is typically triggered by a malfunction in the park brake switch circuit, which may be caused by a faulty switch, wiring issues, or a problem with the park brake control module.

3. How can I diagnose the cause of the OBDII code C1446?

- Diagnosing the cause of code C1446 usually involves checking the park brake switch for proper operation, inspecting the wiring for any damage or loose connections, and using a diagnostic scanner to retrieve specific trouble codes.

4. Can I continue driving my vehicle with OBDII code C1446 present?

- It is not recommended to ignore OBDII code C1446, as it indicates a potential issue with the park brake system that could compromise safety. It is advisable to address the problem promptly.

5. How can I repair OBDII code C1446 (Park Brake Switch Circuit Failure)?

- Repairing code C1446 involves identifying and fixing the underlying issue causing the park brake switch circuit failure. This may include replacing a faulty park brake switch, repairing damaged wiring, or addressing issues with the park brake control module.

6. Is OBDII code C1446 related to the vehicle's braking system?

- OBDII code C1446 specifically pertains to the park brake switch circuit, which is part of the parking brake system. While it does not directly affect the primary braking system, a malfunctioning park brake system can impact overall vehicle safety.

7. Can weather conditions affect the park brake switch circuit and trigger code C1446?

- Extreme weather conditions, such as excessive moisture or extreme temperatures, can potentially impact the park brake switch circuit and lead to code C1446. It is advisable to keep the park brake system well-maintained to prevent such issues.

8. Are there any DIY tips for troubleshooting OBDII code C1446?

- DIY troubleshooting tips for code C1446 include visually inspecting the park brake switch and wiring for any visible damage, ensuring proper connections, and using an OBDII scanner to reset the code after addressing any identified issues.

9. How long does it typically take to repair OBDII code C1446?

- The time required to repair code C1446 can vary depending on the specific cause of the issue. Simple fixes like replacing a faulty park brake switch may take less time, while more complex wiring or control module issues may require additional troubleshooting and repair time.

10. Can a mechanic help with diagnosing and repairing OBDII code C1446?

- Yes, a qualified mechanic or automotive technician can assist in diagnosing and repairing OBDII code C1446 by using specialized tools, expertise, and diagnostic procedures to identify and resolve the underlying problem with the park brake switch circuit.

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