AutoCodes – GMC – P151D 2015 GMC Sierra

P151D 2015 GMC Sierra Code - Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Transmission Control Module, Transmission Control Module harness is open or shorted, Transmission 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: P151D 2015 GMC Sierra indicates Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Transmission Control Module, Transmission Control Module harness is open or shorted, Transmission 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 118

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 P151D 2015 GMC Sierra Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module Engine Shutdown Request Signal Message Counter is Incorrect.

OBDII Code P151D 2015 GMC Sierra - Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect - AutoCodes.com — P151D 2015 GMC Sierra Code - Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P151D 2015 GMC Sierra?

Faulty Transmission Control Module
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC P151D 2015 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 P151D 2015 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 P151D 2015 GMC Sierra code?

Need more information on how to fix the P151D 2015 GMC Sierra code? Get Access to Factory Service Manuals

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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 P151D 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P151D in a 2015 GMC Sierra?

- Common symptoms include the transmission not shifting correctly, engine stalling, and the vehicle going into limp mode.

2. What does the OBDII code P151D indicate in a 2015 GMC Sierra?

- The code P151D indicates that the Transmission Control Module has detected an Engine Shutdown Request Signal Message Counter Incorrect error.

3. What are some possible causes of OBDII code P151D in a 2015 GMC Sierra?

- Possible causes include a faulty Transmission Control Module, issues with the wiring or connectors related to the transmission system, or a software glitch.

4. How can I diagnose OBDII code P151D in my 2015 GMC Sierra?

- Diagnosing the code usually involves using a diagnostic scanner to retrieve the specific error codes, checking the transmission control module for any faults, and inspecting the wiring and connectors for any damage.

5. Can I still drive my 2015 GMC Sierra with OBDII code P151D?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety issues. It's best to address the issue promptly.

6. How can I repair OBDII code P151D in my 2015 GMC Sierra?

- Repairing the issue may involve replacing the Transmission Control Module, repairing any damaged wiring or connectors, and ensuring that the software is updated to the latest version.

7. Is it necessary to reset the OBDII code P151D after making repairs?

- Yes, it is important to clear the code after making repairs to see if the issue has been successfully resolved. This can be done using a diagnostic scanner.

8. Can a DIY enthusiast fix OBDII code P151D in a 2015 GMC Sierra?

- While some basic troubleshooting steps can be done by a DIY enthusiast, diagnosing and repairing this code may require advanced knowledge and specialized tools. It is recommended to seek professional help if needed.

9. How much does it typically cost to repair OBDII code P151D in a 2015 GMC Sierra?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Are there any preventive measures to avoid OBDII code P151D in a 2015 GMC Sierra?

- Regular maintenance, such as checking the transmission system components and keeping the vehicle software updated, can help prevent issues that may trigger the code P151D.