AutoCodes – Chevrolet – C0542 2017 Chevrolet Silverado

C0542 2017 Chevrolet Silverado Code - Brake Pressure Sensor 2 Circuit Low

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: C0542 2017 Chevrolet Silverado indicates Brake Pressure Sensor 2 Circuit Low.
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.

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Code Popularity 147

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
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Code C0542 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 C0542 2017 Chevrolet Silverado - Brake Pressure Sensor 2 Circuit Low - AutoCodes.com — C0542 2017 Chevrolet Silverado Code - Brake Pressure Sensor 2 Circuit Low

What does this mean?

What are the Possible Causes of the DTC C0542 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 C0542 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 C0542 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 C0542 2017 Chevrolet Silverado code?

Need more information on how to fix the C0542 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 C0542 2017 Chevrolet Silverado Code

1. What does OBDII code C0542 mean on a 2017 Chevrolet Silverado?

Code C0542 indicates a "Brake Pressure Sensor 2 Circuit Low," meaning the sensor circuit is detecting a voltage below the expected range.

2. What are the common symptoms of code C0542?

Symptoms may include the ABS warning light illuminated, reduced braking performance, or loss of ABS functionality.

3. What causes the C0542 code to appear?

Common causes include a faulty brake pressure sensor, damaged wiring or connectors, or a malfunctioning ABS control module.

4. Can I drive my 2017 Silverado with code C0542 present?

While the vehicle may still be drivable, ABS functionality may be compromised, increasing the risk during emergency braking.

5. How can I troubleshoot code C0542 on a Chevrolet Silverado?

Start by inspecting the brake pressure sensor wiring and connectors for damage. Use a multimeter to test the circuit voltage and continuity.

6. What tools do I need to diagnose code C0542?

A diagnostic scanner, multimeter, and wiring diagram for the ABS system are essential for troubleshooting this code.

7. How do I fix code C0542 on my Silverado?

Repairs may involve replacing the brake pressure sensor, repairing damaged wiring, or replacing the ABS control module if faulty.

8. How much does it cost to repair code C0542?

Repairs can range from $100-$500 depending on whether the issue is a sensor replacement, wiring repair, or a control module replacement.

9. Can a weak battery cause code C0542?

Yes, a weak or failing battery can sometimes lead to low voltage issues in the circuit, triggering the code.

10. Does code C0542 require a professional mechanic to fix?

If youâ€™re experienced with automotive electrical systems, you may attempt the repair yourself. Otherwise, itâ€™s advisable to seek professional assistance.