AutoCodes – GMC – P0573 2017 GMC Sierra

P0573 2017 GMC Sierra Code - Brake Switch Circuit High Voltage

Quick Answer

The Brake Pedal Position Sensor signal circuit is a B+ input from the Body Control Module (BCM) to the Engine Control Module (ECM). Common causes include Faulty Brake Pedal Position Sensor, Misadjusted Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted. 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 2017 GMC Sierra indicates Brake Switch Circuit High Voltage.
Common causes: Common causes include Faulty Brake Pedal Position Sensor, Misadjusted Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted.
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 290

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 14, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0573 2017 GMC Sierra Description

The Brake Pedal Position Sensor signal circuit is a B+ input from the Body Control Module (BCM) to the Engine Control Module (ECM). The BCM and ECM monitor the Brake Pedal Position Sensor signal circuit to detect when the brake pedal has been applied. When the brake pedal is applied, the BCM supplies B+ on the stop lamp signal circuit and also sends a serial data message to the ECM indicating that the brake pedal has been applied. This Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to voltage on the discrete brake signal circuit when the serial data message from the BCM indicates the brakes are not applied. This diagnostic will run when the serial data message and the voltage signal on the brake switch signal circuit do not match for 8 out 10 times, and the condition is present for greater than 2 s.

OBDII Code P0573 2017 GMC Sierra - Brake Switch Circuit High Voltage - AutoCodes.com — P0573 2017 GMC Sierra Code - Brake Switch Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0573 2017 GMC Sierra?

Faulty Brake Pedal Position Sensor
Misadjusted Brake Pedal Position Sensor
Brake Pedal Position Sensor harness is open or shorted
Brake Pedal Position Sensor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P0573 2017 GMC Sierra?

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 P0573 2017 GMC Sierra 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.

Need more information about the P0573 2017 GMC Sierra code?

Need more information on how to fix the P0573 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0573 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P0573 in a 2017 GMC Sierra?

The common symptoms of OBDII code P0573 in a 2017 GMC Sierra include the brake lights staying on continuously, cruise control not working, and difficulty shifting out of park.

2. What does the OBDII code P0573 Brake Switch Circuit High Voltage mean for a 2017 GMC Sierra?

The OBDII code P0573 indicates that there is a high voltage condition in the brake switch circuit of a 2017 GMC Sierra, which can affect the proper operation of the brake lights and other related systems.

3. What are the possible causes of the OBDII code P0573 in a 2017 GMC Sierra?

Possible causes of the OBDII code P0573 in a 2017 GMC Sierra include a faulty brake light switch, damaged wiring or connectors in the brake circuit, or a problem with the brake control module.

4. How can I diagnose the OBDII code P0573 in my 2017 GMC Sierra?

To diagnose the OBDII code P0573 in a 2017 GMC Sierra, you can start by checking the brake light switch for proper operation, inspecting the wiring for any visible damage, and using a diagnostic scanner to read the code and monitor brake switch signals.

5. Can I continue to drive my 2017 GMC Sierra with the OBDII code P0573?

It is not recommended to drive your 2017 GMC Sierra with the OBDII code P0573, as it may lead to safety issues such as the brake lights not functioning correctly or the vehicle not being able to shift out of park.

6. How can I repair the OBDII code P0573 in my 2017 GMC Sierra?

To repair the OBDII code P0573 in a 2017 GMC Sierra, you may need to replace the brake light switch, repair any damaged wiring or connectors, or seek assistance from a professional mechanic for further diagnosis and repair.

7. Will resetting the OBDII code P0573 in my 2017 GMC Sierra make it go away permanently?

Resetting the OBDII code P0573 in a 2017 GMC Sierra may temporarily clear the code, but if the underlying issue causing the high voltage in the brake switch circuit is not fixed, the code is likely to return.

8. Can a DIY enthusiast fix the OBDII code P0573 in a 2017 GMC Sierra?

A DIY enthusiast with the necessary tools and knowledge of automotive electrical systems may be able to fix the OBDII code P0573 in a 2017 GMC Sierra by replacing the brake light switch or repairing wiring, but complex issues may require professional help.

9. How much does it cost to repair the OBDII code P0573 in a 2017 GMC Sierra?

The cost to repair the OBDII code P0573 in a 2017 GMC Sierra can vary depending on the specific cause of the issue, the cost of parts needed for repair, and labor charges from a mechanic if professional help is sought.

10. Is the OBDII code P0573 a common issue in 2017 GMC Sierra vehicles?

The OBDII code P0573 indicating a high voltage condition in the brake switch circuit is a relatively common issue in 2017 GMC Sierra vehicles, especially if the brake light switch or related components are faulty or damaged.