AutoCodes – GMC – P15F2 2018 GMC Sierra

P15F2 2018 GMC Sierra Code - Engine Torque Command Signal Message Counter Incorrect

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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: P15F2 2018 GMC Sierra indicates Engine Torque Command Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine 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 162

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 Sep 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15F2 2018 GMC Sierra Description

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). The hybrid powertrain control module is internal to the power inverter module, often referred to as the drive motor generator power inverter module and is not serviced separately. The hybrid powertrain control module sends an engine torque requested message to the ECM over the serial data circuits. The ECM monitors the data to verify the indicated engine torque requested calculation is correct. The ECM processor monitors the data to verify that the engine torque command is correct. The Diagnostic Trouble Code (DTC) will be set when the control module has detected an internal malfunction.

OBDII Code P15F2 2018 GMC Sierra - Engine Torque Command Signal Message Counter Incorrect - AutoCodes.com — P15F2 2018 GMC Sierra Code - Engine Torque Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F2 2018 GMC Sierra?

Faulty Engine Control Module (ECM)
Engine Control Module harness is open or shorted
Engine Control Module circuit poor electrical connection

How to Fix the DTC P15F2 2018 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 P15F2 2018 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 P15F2 2018 GMC Sierra code?

Need more information on how to fix the P15F2 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15F2 2018 GMC Sierra 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 P15F2 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P15F2 in a 2018 GMC Sierra?

- Common symptoms include engine hesitation, reduced power, and the illumination of the Check Engine Light.

2. What could cause the OBDII code P15F2 to trigger in a 2018 GMC Sierra?

- The code P15F2 typically triggers due to a malfunction in the engine torque command signal message counter system.

3. How serious is the OBDII code P15F2 in a 2018 GMC Sierra?

- The code P15F2 can affect the performance and drivability of the vehicle, so it is important to address it promptly.

4. Can I continue driving my 2018 GMC Sierra with the OBDII code P15F2 present?

- It is not recommended to drive the vehicle with the code P15F2 active, as it can lead to potential engine performance issues.

5. How can I diagnose the OBDII code P15F2 in my 2018 GMC Sierra?

- Diagnosing the code P15F2 may require a professional scan tool to read the specific details related to the engine torque command signal message counter.

6. Is it possible to repair the OBDII code P15F2 in a 2018 GMC Sierra myself?

- Repairing the code P15F2 may involve checking and repairing wiring connections, replacing faulty sensors, or reprogramming the engine control module, which may require professional expertise.

7. What are some tips for preventing the OBDII code P15F2 from appearing in a 2018 GMC Sierra?

- Regular maintenance, such as checking and replacing sensors and ensuring proper wiring connections, can help prevent the code P15F2 from reoccurring.

8. How much does it typically cost to repair the OBDII code P15F2 in a 2018 GMC Sierra?

- The cost of repairing the code P15F2 can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts.

9. Can the OBDII code P15F2 in a 2018 GMC Sierra cause long-term damage if left unaddressed?

- Ignoring the code P15F2 can potentially lead to further engine performance issues and could cause long-term damage if not repaired in a timely manner.

10. Will resetting the OBDII system clear the P15F2 code in a 2018 GMC Sierra?

- While resetting the OBDII system may temporarily clear the code, it is important to address the underlying issue causing the code to prevent it from reappearing.