AutoCodes – Pontiac – P2544 Pontiac

P2544 Pontiac 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 Pontiac 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,583
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 23, 2019
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Code P2544 Pontiac 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 Pontiac - Torque Management Request Input Signal 'A' - AutoCodes.com
P2544 Pontiac Code - Torque Management Request Input Signal 'A'

What are the Possible Causes of the DTC P2544 Pontiac?

  • 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 Pontiac?

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 Pontiac 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.

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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 P2544 Pontiac Code

1. What is OBDII code P2544 for Pontiac?

The OBDII code P2544 for Pontiac refers to the Torque Management Request Input Signal 'A' being out of range or not plausible.

2. What are common symptoms of OBDII code P2544 in a Pontiac vehicle?

Common symptoms of OBDII code P2544 in a Pontiac may include issues with the transmission, reduced engine performance, and the vehicle going into limp mode.

3. What are possible causes of OBDII code P2544 in a Pontiac?

Possible causes of OBDII code P2544 in a Pontiac include a faulty torque management sensor, damaged wiring or connectors, software issues, or a problem with the transmission control module.

4. How can I diagnose OBDII code P2544 in my Pontiac?

Diagnosing OBDII code P2544 in a Pontiac typically involves using a diagnostic scanner to read the code, checking the torque management sensor, inspecting wiring and connectors for damage, and testing the transmission control module.

5. Can OBDII code P2544 in a Pontiac be fixed at home?

Depending on the exact cause of the OBDII code P2544, some DIY enthusiasts may be able to fix it at home by replacing the torque management sensor, repairing damaged wiring, or resetting the transmission control module.

6. Is it safe to continue driving with OBDII code P2544 in a Pontiac?

It is not recommended to continue driving with OBDII code P2544 in a Pontiac, as it can lead to further damage to the transmission and other components. It's best to address the issue promptly.

7. How much does it cost to repair OBDII code P2544 in a Pontiac?

The cost to repair OBDII code P2544 in a Pontiac can vary depending on the exact cause of the issue. It may range from a few hundred dollars for sensor replacement to more if there are additional issues with the transmission.

8. Can a mechanic reset OBDII code P2544 in a Pontiac without fixing the underlying issue?

While a mechanic can clear the error code, it's important to fix the underlying issue causing OBDII code P2544 in a Pontiac to prevent further problems and ensure the vehicle operates correctly.

9. How long does it take to repair OBDII code P2544 in a Pontiac?

The time to repair OBDII code P2544 in a Pontiac can vary based on the specific cause of the problem and the availability of parts. It may take a few hours to a full day for diagnosis and repair.

10. Are there any preventative measures to avoid OBDII code P2544 in a Pontiac?

Regular maintenance, such as checking and replacing worn sensors and inspecting wiring for damage, can help prevent issues like OBDII code P2544 in a Pontiac. Additionally, driving responsibly and avoiding harsh acceleration can also help maintain the health of the transmission system.

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