AutoCodes – GMC – P151D GMC

P151D GMC 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 GMC 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 343

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

What does this mean?

What are the Possible Causes of the DTC P151D GMC?

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 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 P151D 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 P151D GMC code?

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

Need Help with the Code?

Get the P151D GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P151D 2014 GMC Sierra — Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect
P151D 2015 GMC Sierra — Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect
P151D 2016 GMC Sierra — Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect
P151D 2017 GMC Sierra — Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect
P151D 2018 GMC Sierra — Transmission Control Module Engine Shutdown Request 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 P151D GMC Code

1. What are the common symptoms of OBDII code P151D GMC?

The common symptoms of OBDII code P151D GMC include engine shutdown while driving, poor transmission performance, and illuminated Check Engine Light.

2. What causes the OBDII code P151D GMC to trigger?

The OBDII code P151D GMC is triggered when the Transmission Control Module detects an incorrect signal message counter related to engine shutdown requests.

3. How serious is the OBDII code P151D GMC?

The OBDII code P151D GMC can be serious if left unaddressed, as it may lead to unexpected engine shutdowns and potentially unsafe driving conditions.

4. Can I continue driving with the OBDII code P151D GMC present?

It is not recommended to continue driving with the OBDII code P151D GMC present, as it can lead to transmission and engine performance issues.

5. How do I diagnose the OBDII code P151D GMC?

Diagnosing the OBDII code P151D GMC typically involves using a scan tool to read the code, inspecting the transmission control module, and checking for any loose or damaged wiring.

6. What are some repair tips for OBDII code P151D GMC?

Repair tips for OBDII code P151D GMC may include resetting the code, checking and repairing any faulty wiring connections, and updating the Transmission Control Module software.

7. Can a DIY enthusiast fix the OBDII code P151D GMC?

While some aspects of addressing the OBDII code P151D GMC can be done by a knowledgeable DIY enthusiast, it is recommended to consult a professional mechanic for proper diagnosis and repair.

8. How much does it cost to fix the OBDII code P151D GMC?

The cost of fixing the OBDII code P151D GMC can vary depending on the root cause of the issue, but it may involve costs for parts, labor, and potential software updates.

9. Is the OBDII code P151D GMC a common issue in GMC vehicles?

The OBDII code P151D GMC is not as common as other codes, but it can occur in GMC vehicles with transmission control module issues.

10. How can I prevent the OBDII code P151D GMC from recurring?

To prevent the OBDII code P151D GMC from recurring, it is important to address any underlying transmission control module issues promptly and perform regular maintenance on your vehicle.