AutoCodes – Chevrolet – P15F8 2018 Chevrolet Silverado

P15F8 2018 Chevrolet Silverado Code - Automatic Braking Engine Torque Request Signal Message Counter Incorrect

Quick Answer

The Electronic Brake Control Module (EBCM) and The Engine Control Module (ECM) simultaneously control the vehicle performance. 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: P15F8 2018 Chevrolet Silverado indicates Automatic Braking Engine Torque Request Signal Message Counter Incorrect.
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 260

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15F8 2018 Chevrolet Silverado Description

The Electronic Brake Control Module (EBCM) and The Engine Control Module (ECM) simultaneously control the vehicle performance. During an automatic brake event, the electronic brake control module sends a serial data message to the engine control module requesting torque reduction. If the engine control module receives corrupt data from the electronic brake control module, Diagnostic Trouble Code (DTC) P15F8 will be set in the engine control module. The engine control module then sends a serial data message to the electronic brake control module that torque reduction is not allowed. The DTC will be set when the ECM detects a corrupted data message from the electronic brake control module.

OBDII Code P15F8 2018 Chevrolet Silverado - Automatic Braking Engine Torque Request Signal Message Counter Incorrect - AutoCodes.com — P15F8 2018 Chevrolet Silverado Code - Automatic Braking Engine Torque Request Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F8 2018 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

How to Fix the DTC P15F8 2018 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 P15F8 2018 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 P15F8 2018 Chevrolet Silverado code?

Need more information on how to fix the P15F8 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15F8 2018 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 P15F8 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P15F8 in a 2018 Chevrolet Silverado?

- Common symptoms include the Service Engine Soon light illuminating, reduced engine performance, and potential issues with the automatic braking system.

2. What does the OBDII code P15F8 indicate in a 2018 Chevrolet Silverado?

- The code P15F8 indicates that there is a problem with the Engine Torque Request Signal Message Counter being incorrect, particularly related to the automatic braking system.

3. What are the possible causes of OBDII code P15F8 in a 2018 Chevrolet Silverado?

- Possible causes include a faulty engine control module (ECM), issues with the automatic braking system sensors, wiring problems, or a communication error within the vehicle's network.

4. How can I diagnose the OBDII code P15F8 in my 2018 Chevrolet Silverado?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking for any related trouble codes, inspecting the automatic braking system components, and testing the ECM and sensor connections.

5. Is it safe to continue driving with OBDII code P15F8 present in a 2018 Chevrolet Silverado?

- It is not recommended to continue driving with the code present, as it may affect the vehicle's performance and safety systems. It is advisable to address the issue promptly.

6. Can I repair OBDII code P15F8 in my 2018 Chevrolet Silverado myself?

- While some DIY enthusiasts may attempt to address the issue, diagnosing and repairing this code often requires specialized tools and knowledge. It is recommended to consult a professional mechanic.

7. How much does it typically cost to repair OBDII code P15F8 in a 2018 Chevrolet Silverado?

- The cost of repair can vary depending on the underlying cause of the code. It may range from a few hundred dollars for sensor replacement to over a thousand dollars for ECM-related issues.

8. Are there any recalls or technical service bulletins related to OBDII code P15F8 in a 2018 Chevrolet Silverado?

- It is advisable to check with a Chevrolet dealership or the manufacturer's website for any recalls or technical service bulletins related to this specific OBDII code in the 2018 Silverado.

9. How can I prevent OBDII code P15F8 from occurring in my 2018 Chevrolet Silverado?

- Regular maintenance, such as checking and replacing sensors as needed, ensuring proper wiring connections, and keeping the vehicle's systems updated, can help prevent issues that trigger this code.

10. Can resetting the OBDII code P15F8 in a 2018 Chevrolet Silverado resolve the issue permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.