Engine-Codes.com
Engine-Codes – Generic – P0573

P0573 Code - Brake Switch Circuit High Voltage

Quick Answer

When the diagnostic trouble code P0573 appears, it indicates that there is a high voltage condition detected in the brake switch circuit. Common causes include Faulty brake switch, Damaged or corroded wiring in the brake switch circuit, Loose or poor connection in the brake switch 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
P0573 indicates Brake Switch Circuit High Voltage.
Common causes
Common causes include Faulty brake switch, Damaged or corroded wiring in the brake switch circuit, Loose or poor connection in the brake switch 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 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0573 Description

When the diagnostic trouble code P0573 appears, it indicates that there is a high voltage condition detected in the brake switch circuit. The brake switch, also known as the stoplight switch, is a crucial component that activates the brake lights when the brake pedal is pressed. This code suggests that the voltage in the circuit is higher than expected, which can disrupt the normal operation of the vehicle's braking system.

OBDII Code P0573 - Brake Switch Circuit High Voltage
P0573 Code - Brake Switch Circuit High Voltage

Common Causes of P0573

  1. Faulty brake switch
  2. Damaged or corroded wiring in the brake switch circuit
  3. Loose or poor connection in the brake switch circuit
  4. Faulty brake light bulbs
  5. Issues with the brake light relay

Symptoms of P0573

  1. Brake lights staying on continuously
  2. Brake lights not turning on when the brake pedal is pressed
  3. Cruise control not working
  4. Difficulty shifting out of park
  5. ABS warning light illuminated on the dashboard

How to Fix P0573

  1. Begin by locating the brake switch, which is typically located near the top of the brake pedal.
  2. Inspect the wiring and connections in the brake switch circuit for any damage or corrosion. Repair or replace any damaged components.
  3. Test the brake switch using a multimeter to check for continuity and proper voltage levels.
  4. If the brake switch is faulty, replace it with a new one according to the manufacturer's specifications.
  5. Clear the diagnostic trouble code and test the vehicle to ensure that the issue has been resolved.

Cost to Fix P0573

The cost of repairing a P0573 code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the parts for a brake switch replacement can range from $20 to $50, while the labor costs can range from $50 to $100. Overall, the total repair cost for this issue is typically between $70 and $150. However, it's important to note that labor rates and part prices can vary significantly based on location and the repair shop you choose. It's recommended to get a personalized quote from a trusted auto repair shop in your area.

Need more information about the P0573 code?

Need more information on how to fix the P0573 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0573 code diagnosed by a professional: Find a repair shop in your area

Code P0573 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 P0573 Code

1. What are the common symptoms of OBDII code P0573 (Brake Switch Circuit High Voltage)?

The common symptoms of P0573 include the brake lights staying on constantly, cruise control not working, and the inability to shift out of Park.

2. What are the possible causes of OBDII code P0573?

The potential causes of P0573 include a faulty brake light switch, a short circuit in the brake light circuit, a malfunctioning brake light relay, or damaged wiring.

3. How can I diagnose OBDII code P0573?

To diagnose P0573, you can start by checking the brake light switch for proper operation, inspecting the brake light circuit for any visible damage, and testing the brake light relay for functionality using a multimeter.

4. Can I still drive my vehicle with OBDII code P0573 present?

It is not recommended to drive your vehicle with code P0573 present, as it can affect the proper operation of your brake lights and potentially compromise your safety on the road.

5. How do I repair OBDII code P0573?

To repair P0573, you may need to replace the faulty brake light switch, repair any damaged wiring in the brake light circuit, or replace a malfunctioning brake light relay.

6. Can a DIYer fix OBDII code P0573?

Depending on your level of automotive repair experience, you may be able to address P0573 as a DIY project by following proper diagnostic procedures and replacing the necessary components.

7. Will resetting the OBDII code P0573 make it go away permanently?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing P0573 is not addressed, the code is likely to reappear.

8. Is OBDII code P0573 specific to certain vehicle makes and models?

While P0573 is a generic OBDII code related to a high voltage brake switch circuit, it can occur in various vehicle makes and models equipped with an OBDII system.

9. How long does it typically take to repair OBDII code P0573?

The repair time for P0573 can vary depending on the exact cause of the issue and the complexity of accessing and replacing the faulty components. It may take anywhere from 30 minutes to a few hours.

10. Are there any safety implications of ignoring OBDII code P0573?

Ignoring P0573 can pose safety risks, such as the brake lights not functioning properly, which can lead to rear-end collisions or other accidents due to drivers behind you not being alerted when you are braking.

Discuss the causes and fixes for P0573 OBDII Code

Submit a New Comment

  • THE INFORMATION DOES NOT DETAILED HOW TO FIX THE PROBLEM.

    Reply to Comment

  • Thank you for your feedback, but you can use the " Possible causes" as reference. You should first try to adjust the brake switch and inspect the connection. If the adjustment and connector is OK, then you should replaced the switch. The switch location and adjustment procedure varies with the your vehicle's make, model and year.

    Reply to Comment