AutoCodes – GMC – P15F2 2017 GMC Sierra

P15F2 2017 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 2017 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 157

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 2017 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 2017 GMC Sierra - Engine Torque Command Signal Message Counter Incorrect - AutoCodes.com — P15F2 2017 GMC Sierra Code - Engine Torque Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F2 2017 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 2017 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 2017 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 2017 GMC Sierra code?

Need more information on how to fix the P15F2 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15F2 2017 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 2017 GMC Sierra Code

1. What does OBDII code P15F2 mean on a 2017 GMC Sierra?

Code P15F2 indicates an "Engine Torque Command Signal Message Counter Incorrect," which refers to a communication issue between the engine control module (ECM) and other control modules.

2. What are the common symptoms of code P15F2 on a 2017 GMC Sierra?

Symptoms may include the check engine light turning on, reduced engine performance, or issues with shifting if the transmission is affected.

3. What causes the P15F2 code on a GMC Sierra?

Common causes include a malfunctioning ECM, damaged wiring or connectors, or communication errors between modules.

4. Can I drive my 2017 GMC Sierra with the P15F2 code?

While the vehicle may still be drivable, itâ€™s not recommended, as this code can affect performance and could lead to further mechanical issues.

5. How is the P15F2 code diagnosed?

A technician will use a scan tool to verify the code, inspect wiring and connectors for damage, and check for any communication errors between the modules.

6. What repairs can fix the P15F2 code on a 2017 GMC Sierra?

Repairs may include replacing damaged wiring, connectors, or the ECM if itâ€™s found to be faulty.

7. Can a software update resolve the P15F2 code?

In some cases, a software update for the ECM or other control modules may resolve communication issues causing the code.

8. How much does it typically cost to fix code P15F2 on a GMC Sierra?

Repair costs can vary depending on the underlying cause, ranging from $100 for wiring repairs to $1,000 or more if the ECM needs replacement.

9. Is the P15F2 code specific to the GMC Sierra?

While this code can appear on other GM vehicles, it is commonly reported on the GMC Sierra and other trucks with similar ECM systems.

10. Can a weak battery cause the P15F2 code?

Yes, a weak or failing battery can cause voltage inconsistencies, which may lead to communication errors and trigger the P15F2 code.

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