AutoCodes – Chevrolet – P15F2 Chevrolet

P15F2 Chevrolet 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 Chevrolet 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 1,297

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 Sep 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15F2 Chevrolet 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 Chevrolet - Engine Torque Command Signal Message Counter Incorrect - AutoCodes.com — P15F2 Chevrolet Code - Engine Torque Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F2 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

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

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Information for Specific Chevrolet Models

P15F2 2014 Chevrolet Silverado — Engine Torque Command Signal Message Counter Incorrect
P15F2 2015 Chevrolet Silverado — Engine Torque Command Signal Message Counter Incorrect
P15F2 2016 Chevrolet Silverado — Engine Torque Command Signal Message Counter Incorrect
P15F2 2017 Chevrolet Silverado — Engine Torque Command Signal Message Counter Incorrect
P15F2 2018 Chevrolet Silverado — 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 Chevrolet Code

What does the OBDII code P15F2 mean for my Chevrolet?

The P15F2 code indicates that there is an issue with the Engine Torque Command Signal message, specifically that the message counter is incorrect. This can affect engine performance and communication between the engine control module (ECM) and other components.

What are the common symptoms of the P15F2 code?

Common symptoms include poor engine performance, reduced power, rough idling, and possible check engine light illumination. You may also experience issues with acceleration or unexpected changes in engine behavior.

What could cause the P15F2 code to trigger?

Potential causes include faulty wiring or connectors in the communication circuits, a malfunctioning engine control module (ECM), or issues with related components such as the throttle control system or transmission control module.

Can I drive my Chevrolet with the P15F2 code?

While you may be able to drive the vehicle, it is not recommended as the engine performance may be compromised, which could lead to further damage or safety issues. It's best to diagnose and repair the problem promptly.

How can I diagnose the P15F2 code?

To diagnose the P15F2 code, use an OBDII scanner to retrieve the code and any related codes. Inspect the wiring and connectors for damage, check the ECM for proper function, and examine related systems for faults that may affect torque command signals.

What are some common repair tips for fixing the P15F2 code?

Repairs may involve checking and repairing any damaged wiring or connectors, updating or reprogramming the ECM, or replacing faulty sensors related to engine torque control. Always perform a thorough inspection of the entire system.

Will clearing the code P15F2 fix the problem?

Clearing the code will not fix the underlying issue. The code may reset temporarily, but if the problem is not addressed, it will likely reappear. Proper diagnosis and repair of the root cause are necessary.

How much will it cost to repair the P15F2 code?

Repair costs can vary widely depending on the specific issue causing the code, the make and model of the vehicle, and local labor rates. Simple repairs like fixing wiring might be less expensive, while ECM replacement could be more costly.

Can the P15F2 code affect other systems in my Chevrolet?

Yes, since the P15F2 code relates to engine torque command signals, it can potentially affect other systems like transmission performance, stability control, and overall engine efficiency, leading to a cascade of issues.