AutoCodes – GMC – P15F2 GMC

P15F2 GMC 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 GMC 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 918

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

What does this mean?

What are the Possible Causes of the DTC P15F2 GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

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Information for Specific GMC Models

P15F2 2014 GMC Sierra — Engine Torque Command Signal Message Counter Incorrect
P15F2 2015 GMC Sierra — Engine Torque Command Signal Message Counter Incorrect
P15F2 2016 GMC Sierra — Engine Torque Command Signal Message Counter Incorrect
P15F2 2017 GMC Sierra — Engine Torque Command Signal Message Counter Incorrect
P15F2 2018 GMC Sierra — Engine Torque Command Signal Message Counter Incorrect

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 GMC Code

1. What are the common symptoms of OBDII code P15F2 GMC?

The common symptoms of code P15F2 GMC include engine performance issues, reduced power, and possibly an illuminated check engine light.

2. What does the OBDII code P15F2 GMC indicate?

OBDII code P15F2 GMC indicates that the Engine Torque Command Signal Message Counter is incorrect, suggesting a communication problem between control modules.

3. What are the possible causes of OBDII code P15F2 GMC?

Possible causes of code P15F2 GMC include wiring issues, faulty engine control module (ECM), damaged connectors, or a malfunctioning torque sensor.

4. How can I diagnose OBDII code P15F2 GMC?

Diagnosing code P15F2 GMC involves using a diagnostic scanner to retrieve the fault code, inspecting related wiring and connectors, and testing the ECM and torque sensor for proper function.

5. Can I continue driving with OBDII code P15F2 GMC?

It is not recommended to continue driving with code P15F2 GMC present, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

6. How can I repair OBDII code P15F2 GMC?

To repair code P15F2 GMC, you may need to repair or replace damaged wiring, connectors, the ECM, or the torque sensor as necessary. Proper diagnosis is essential for an effective repair.

7. Is it safe to clear the OBDII code P15F2 GMC without fixing the underlying issue?

Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will likely persist and could lead to more serious issues down the line.

8. Can a DIY enthusiast fix OBDII code P15F2 GMC?

While some DIY enthusiasts may be able to diagnose and repair code P15F2 GMC with the right tools and knowledge, it is recommended to consult a professional technician for accurate diagnosis and repairs.

9. How much does it cost to fix OBDII code P15F2 GMC at a repair shop?

The cost of fixing code P15F2 GMC at a repair shop can vary depending on the exact cause of the issue, the needed repairs, and labor rates. It is best to obtain quotes from multiple shops for an accurate estimate.

10. How can I prevent OBDII code P15F2 GMC from occurring again in the future?

Preventative maintenance, such as regular vehicle inspections, checking wiring integrity, and addressing any potential issues promptly, can help prevent OBDII code P15F2 GMC from occurring again in the future.