AutoCodesChevrolet – P0573 2016 Chevrolet Silverado

P0573 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 290
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 14, 2022
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Code P0573 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado - Brake Switch Circuit High Voltage - AutoCodes.com
P0573 2016 Chevrolet Silverado Code - Brake Switch Circuit High Voltage

What are the Possible Causes of the DTC P0573 2016 Chevrolet Silverado?

  • 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 2016 Chevrolet Silverado?

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 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado Code

1. What does the OBDII code P0573 mean on a 2016 Chevrolet Silverado?

P0573 indicates a "Brake Switch Circuit High Voltage," meaning the powertrain control module (PCM) has detected an abnormally high voltage in the brake switch circuit.

2. What are the symptoms of code P0573 in a 2016 Chevrolet Silverado?

Common symptoms include the brake lights staying on or failing to work, cruise control not functioning, and potentially illuminated ABS or traction control warning lights.

3. What causes the P0573 code on a 2016 Chevrolet Silverado?

The most common causes include a faulty brake light switch, damaged or corroded wiring in the brake switch circuit, or a malfunctioning PCM.

4. Can I drive my 2016 Chevrolet Silverado with code P0573?

While the vehicle may still be drivable, features like cruise control and brake lights may not function properly, which can pose safety risks. It's best to address the issue promptly.

5. How do I diagnose the P0573 code on a 2016 Chevrolet Silverado?

Start by inspecting the brake light switch and its wiring for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

6. How do I fix the P0573 code on a 2016 Chevrolet Silverado?

Repairs may include replacing a faulty brake light switch, repairing or replacing damaged wiring, or cleaning corroded connectors in the brake switch circuit.

7. How much does it cost to fix the P0573 code on a 2016 Chevrolet Silverado?

The repair cost can range from $50 to $200, depending on whether the issue lies with the brake light switch, wiring, or connectors.

8. Will replacing the brake light switch fix the P0573 code?

In many cases, a faulty brake light switch is the root cause of the code, and replacing it can resolve the issue. However, always test the circuit to confirm.

9. Can a blown fuse cause the P0573 code in a 2016 Chevrolet Silverado?

A blown fuse in the brake light circuit is unlikely to cause P0573 directly, but it’s still a good idea to check all related fuses during diagnostics.

10. How do I reset the P0573 code after repairs on my 2016 Chevrolet Silverado?

After completing repairs, use an OBDII scanner to clear the code. If the issue is resolved, the code should not return.

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