AutoCodes – Chevrolet – C0543 2017 Chevrolet Silverado

C0543 2017 Chevrolet Silverado Code - Brake Pressure Sensor 2 Circuit High

Quick Answer

The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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: C0543 2017 Chevrolet Silverado indicates Brake Pressure Sensor 2 Circuit High.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 186

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C0543 2017 Chevrolet Silverado Description

The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. The Electronic Brake Control Module monitors when the driver's foot is on the brake and locks the offset. The offset is locked when three out of the four inputs indicate the brake pedal is applied. The four inputs are brake pedal travel 1, brake pedal travel 2, master cylinder pressure sensor, and brake pedal position sensor. These inputs are used to determine the driver's braking intent which is used to control the amount of pressure applied to the wheels.
Brake pressure sensor information is communicated from the Electronic Brake Control Module (EBCM) to the Hybrid Control Processor (HCP). This information is used to schedule regenerative braking and engine autostops.
The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects a corrupted data message from the Electronic Brake Control Module.

OBDII Code C0543 2017 Chevrolet Silverado - Brake Pressure Sensor 2 Circuit High - AutoCodes.com — C0543 2017 Chevrolet Silverado Code - Brake Pressure Sensor 2 Circuit High

What does this mean?

What are the Possible Causes of the DTC C0543 2017 Chevrolet Silverado?

Faulty Electronic Brake Control Module (EBCM)
Electronic Brake Control Module harness is open or shorted
Electronic Brake Control Module circuit poor electrical connection
Faulty Starter/Generator Control Module

How to Fix the DTC C0543 2017 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 C0543 2017 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 C0543 2017 Chevrolet Silverado code?

Need more information on how to fix the C0543 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0543 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 C0543 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C0543 on a 2017 Chevrolet Silverado?

The common symptoms of OBDII code C0543 (Brake Pressure Sensor 2 Circuit High) on a 2017 Chevrolet Silverado may include the ABS warning light illuminating on the dashboard and potential issues with the vehicle's braking system.

2. What can cause OBDII code C0543 to trigger on a 2017 Chevrolet Silverado?

The Brake Pressure Sensor 2 Circuit High code (C0543) on a 2017 Chevrolet Silverado can be triggered by issues such as a faulty brake pressure sensor, damaged wiring or connectors related to the sensor, or problems with the ABS module.

3. How serious is OBDII code C0543 on a 2017 Chevrolet Silverado?

OBDII code C0543 (Brake Pressure Sensor 2 Circuit High) on a 2017 Chevrolet Silverado is a serious issue as it directly affects the proper functioning of the vehicle's braking system and ABS. It is recommended to address this code promptly to ensure safe driving.

4. Can I continue driving my 2017 Chevrolet Silverado with OBDII code C0543?

It is not recommended to continue driving your 2017 Chevrolet Silverado with OBDII code C0543 present, as it indicates a potential problem with the brake pressure sensor circuit. Continuing to drive the vehicle in this condition can compromise braking performance and safety.

5. How can I diagnose and repair OBDII code C0543 on my 2017 Chevrolet Silverado?

Diagnosing and repairing OBDII code C0543 on a 2017 Chevrolet Silverado typically involves inspecting the brake pressure sensor, checking the wiring and connectors for any damage, and testing the ABS module. Repairs may include sensor replacement, wiring repairs, or module replacement as needed.

6. Are there any DIY tips for addressing OBDII code C0543 on a 2017 Chevrolet Silverado?

While diagnosing and repairing OBDII code C0543 may require specialized tools and expertise, you can visually inspect the brake pressure sensor and its connections for any obvious damage. However, for a thorough repair, it is advisable to consult a professional mechanic.

7. Will resetting the OBDII code C0543 on a 2017 Chevrolet Silverado make it go away?

Resetting the OBDII code C0543 on a 2017 Chevrolet Silverado may temporarily clear the code, but if the underlying issue causing the code to trigger is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the code for a permanent solution.

8. How much does it cost to fix OBDII code C0543 on a 2017 Chevrolet Silverado?

The cost of fixing OBDII code C0543 on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue and the required repairs. Costs may include parts such as a new brake pressure sensor, wiring repairs, or ABS module replacement, as well as labor charges from a mechanic.

9. Can extreme weather conditions trigger OBDII code C0543 on a 2017 Chevrolet Silverado?

Extreme weather conditions, such as extreme cold or heat, can potentially affect the brake pressure sensor and its circuit, leading to issues that may trigger OBDII code C0543 on a 2017 Chevrolet Silverado. It is important to maintain your vehicle properly in all weather conditions.

10. How often should I have the brake system inspected on my 2017 Chevrolet Silverado to prevent OBDII code C0543?

To prevent issues like OBDII code C0543 (Brake Pressure Sensor 2 Circuit High) on your 2017 Chevrolet Silverado, it is recommended to have your brake system inspected regularly as part of routine maintenance. This can help identify and address potential problems before they escalate.