AutoCodes – GMC – P15F2 2016 GMC Sierra

P15F2 2016 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 2016 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 177

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 2016 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 2016 GMC Sierra - Engine Torque Command Signal Message Counter Incorrect - AutoCodes.com — P15F2 2016 GMC Sierra Code - Engine Torque Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F2 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the P15F2 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15F2 2016 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 2016 GMC Sierra Code

1. What does the OBDII code P15F2 mean on a 2016 GMC Sierra?

P15F2 refers to "Engine Torque Command Signal Message Counter Incorrect," indicating an issue with communication signals between the engine control module (ECM) and other control units.

2. What are common symptoms of the P15F2 code in a 2016 GMC Sierra?

Symptoms may include reduced engine performance, the vehicle entering "limp mode," a check engine light, and erratic transmission shifting.

3. What causes the P15F2 code to appear?

Common causes include faulty wiring or connections, a malfunctioning ECM or transmission control module (TCM), or software issues in the communication systems.

4. How is the P15F2 code diagnosed?

A technician will use a diagnostic scanner to retrieve the code, inspect wiring and connectors for damage, and test the communication between the ECM and TCM.

5. Can I drive my 2016 GMC Sierra with the P15F2 code active?

Itâ€™s not recommended to drive the vehicle extensively, as it may operate in reduced performance mode, potentially causing further damage.

6. How can the P15F2 code be fixed?

Repairs may include fixing or replacing damaged wiring, reprogramming or updating the ECM/TCM software, or replacing faulty control modules.

7. What tools are needed to repair the P15F2 code?

You may need a professional-grade OBDII scanner, a multimeter for testing electrical connections, and possibly access to GM-specific diagnostic tools for reprogramming.

8. Is the P15F2 code covered under warranty for a 2016 GMC Sierra?

It depends on the vehicleâ€™s warranty coverage and mileage. Check with your GMC dealer for details on powertrain or emissions-related warranties.

9. How much does it cost to repair the P15F2 code?

Repair costs vary depending on the root cause, but they can range from $100 for minor wiring repairs to $1,000 or more if module replacement is required.

10. Can a software update fix the P15F2 code?

Yes, if the issue is related to outdated software causing communication errors, a software update at a dealership may resolve the problem.