AutoCodes – GMC – P2544 2017 GMC Sierra

P2544 2017 GMC Sierra Code - Torque Management Request Input Signal 'A'

Quick Answer

To improve shift feel, the Transmission Control Module (TCM) may request that the Engine Control Module (ECM) reduce engine torque during shift events. Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module (ECM) software update. 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: P2544 2017 GMC Sierra indicates Torque Management Request Input Signal 'A'.
Common causes: Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module (ECM) software update.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 187

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 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2544 2017 GMC Sierra Description

To improve shift feel, the Transmission Control Module (TCM) may request that the Engine Control Module (ECM) reduce engine torque during shift events. When such a request is received, the ECM responds by retarding the base ignition timing and notifying the TCM that the request has succeeded. If the ECM is unable to comply with the request, the ECM sends the TCM a message that the request has failed.
The torque reduction request is sent to the ECM through a communication network called the controller area network (CAN). Two circuits are used to communicate CAN data between the ECM and TCM.
A fault in the CAN will not cause the ECM to set the Diagnostic Trouble Codes (DTC). If a CAN fault occurs, other DTCs will set before this code.
The ECM set the OBDII code when the TCM receives a torque reduction failure message from the ECM.

OBDII Code P2544 2017 GMC Sierra - Torque Management Request Input Signal 'A' - AutoCodes.com — P2544 2017 GMC Sierra Code - Torque Management Request Input Signal 'A'

What does this mean?

What are the Possible Causes of the DTC P2544 2017 GMC Sierra?

Faulty Engine Control Module (ECM)
Faulty Transmission Control Module (TCM)
Engine Control Module (ECM) software update
Transmission Control Module (TCM) software update
Engine Control Module (ECM) harness is open or shorted
Engine Control Module (ECM) circuit poor electrical connection

How to Fix the DTC P2544 2017 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 P2544 2017 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 P2544 2017 GMC Sierra code?

Need more information on how to fix the P2544 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2544 2017 GMC Sierra 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 P2544 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P2544 in a 2017 GMC Sierra?

- Common symptoms include reduced engine performance, engine stalling, and potential issues with shifting gears.

2. What does the Torque Management Request Input Signal 'A' error code (P2544) indicate in a 2017 GMC Sierra?

- This code indicates a problem with the signal sent to the engine control module regarding torque management requests.

3. What are some possible causes of OBDII code P2544 in a 2017 GMC Sierra?

- Possible causes include a faulty torque management sensor, issues with the wiring or connectors, or a malfunction in the engine control module.

4. How can I diagnose the Torque Management Request Input Signal 'A' error code in my 2017 GMC Sierra?

- Diagnosis typically involves using a scan tool to read the code, checking the wiring and connectors for damage, and testing the torque management sensor.

5. Can I continue driving my 2017 GMC Sierra with OBDII code P2544?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the engine or transmission.

6. How can I repair OBDII code P2544 in my 2017 GMC Sierra?

- Repair may involve replacing the faulty torque management sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Are there any DIY tips for addressing the Torque Management Request Input Signal 'A' code in a 2017 GMC Sierra?

- While diagnosing and repairing this issue may require advanced knowledge and tools, checking the wiring and connectors for visible damage is a good starting point.

8. Is it necessary to reset the OBDII code P2544 after repairs in a 2017 GMC Sierra?

- It is recommended to clear the code after repairs to see if the issue has been resolved. This can be done using a scan tool or by disconnecting the vehicle's battery for a few minutes.

9. How much does it typically cost to repair OBDII code P2544 in a 2017 GMC Sierra at a dealership or mechanic?

- Repair costs can vary depending on the exact cause of the issue, but it may range from $200 to $500 or more, including parts and labor.

10. How can I prevent OBDII code P2544 from recurring in my 2017 GMC Sierra?

- Regular maintenance, such as checking and replacing worn-out sensors and ensuring proper wiring connections, can help prevent the recurrence of this code.