AutoCodes – Chevrolet – P15F9 2016 Chevrolet Silverado

P15F9 2016 Chevrolet Silverado Code - Hybrid/EV System Engine Speed Control Intervention Request Type Signal Message Counter Incorrect

Quick Answer

The Hybrid Powertrain Control Module is constantly sending serial data messages to the Engine Control Module (ECM) regarding the operating state of the powertrain propulsion system. Common causes include Check for Hybrid Codes. 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: P15F9 2016 Chevrolet Silverado indicates Hybrid/EV System Engine Speed Control Intervention Request Type Signal Message Counter Incorrect.
Common causes: Common causes include Check for Hybrid Codes.
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 247

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 P15F9 2016 Chevrolet Silverado Description

The Hybrid Powertrain Control Module is constantly sending serial data messages to the Engine Control Module (ECM) regarding the operating state of the powertrain propulsion system. These messages are sent in a continuously repeating series of rolling counts with associated password protect samples. Each count/sample is assigned a value. The ECM uses the values, during a propulsion system mode shift, to determine when and at what RPM to idle the internal combustion engine. When the ECM determines that too many of the counts/samples contain an error value, the ECM sets DTC P15F9.

OBDII Code P15F9 2016 Chevrolet Silverado - Hybrid/EV System Engine Speed Control Intervention Request Type Signal Message Counter Incorrect - AutoCodes.com — P15F9 2016 Chevrolet Silverado Code - Hybrid/EV System Engine Speed Control Intervention Request Type Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15F9 2016 Chevrolet Silverado?

Check for Hybrid Codes

How to Fix the DTC P15F9 2016 Chevrolet Silverado?

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 P15F9 2016 Chevrolet Silverado 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 P15F9 2016 Chevrolet Silverado code?

Need more information on how to fix the P15F9 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15F9 2016 Chevrolet Silverado 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 P15F9 2016 Chevrolet Silverado Code

1. What does the OBDII code P15F9 mean on a 2016 Chevrolet Silverado?

Code P15F9 indicates an issue with the Hybrid/EV System's Engine Speed Control Intervention Request, where the signal message counter is incorrect.

2. What are the common symptoms of code P15F9 in a 2016 Chevrolet Silverado?

Symptoms may include a check engine light, reduced engine performance, decreased fuel efficiency, or issues with the hybrid/EV system's functionality.

3. What causes the P15F9 code to appear on a 2016 Chevrolet Silverado?

This code is often caused by communication errors between the engine control module (ECM) and hybrid/EV system, faulty wiring, a malfunctioning control module, or software glitches.

4. How do I diagnose the P15F9 code in my 2016 Chevrolet Silverado?

Diagnose the issue by scanning for trouble codes, inspecting wiring and connectors related to the hybrid/EV system, and verifying the integrity of the ECM's communication signals.

5. Can a faulty hybrid/EV control module trigger the P15F9 code?

Yes, a malfunctioning hybrid/EV control module can cause incorrect signal messages and lead to the P15F9 code.

6. Is the P15F9 code specific to hybrid or EV-equipped 2016 Chevrolet Silverados?

Yes, this code is specific to Silverado models equipped with hybrid or electric vehicle systems.

7. What repairs are typically needed to fix the P15F9 code on a 2016 Chevrolet Silverado?

Repairs may include updating the ECM software, repairing or replacing damaged wiring or connectors, or replacing a faulty hybrid/EV control module.

8. Can I continue driving with the P15F9 code active in my 2016 Chevrolet Silverado?

While the vehicle may still be drivable, ignoring the code can lead to reduced performance or further damage to the hybrid/EV system. Prompt diagnosis and repair are recommended.

9. How much does it cost to fix the P15F9 code on a 2016 Chevrolet Silverado?

Repair costs vary depending on the exact issue, but diagnosing and fixing wiring or reprogramming the ECM typically costs between $100 and $500. Replacing a control module may cost more.

10. Do I need to take my 2016 Chevrolet Silverado to a dealer to fix the P15F9 code?

While a dealer may have specialized tools for hybrid/EV systems, a qualified mechanic with experience in hybrid vehicles can also diagnose and repair this issue.