AutoCodes – Dodge – P2637 Dodge

P2637 Dodge Code - Torque Management Feedback 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 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: P2637 Dodge indicates Torque Management Feedback Signal 'A'.
Common causes: Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module 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.

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Code Popularity 4,179

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 Jun 08, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2637 Dodge 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 cannot 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). Other DTCs will be set before this code if a CAN fault occurs.
The ECM sets the OBDII code when the TCM receives a torque reduction failure message from the ECM.

OBDII Code P2637 Dodge - Torque Management Feedback Signal 'A' - AutoCodes.com — P2637 Dodge Code - Torque Management Feedback Signal 'A'

What does this mean?

What are the Possible Causes of the DTC P2637 Dodge?

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

How to Fix the DTC P2637 Dodge?

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 P2637 Dodge 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 P2637 Dodge Code

1. What does the OBDII code P2637 mean on a Dodge vehicle?

P2637 indicates an issue with the Torque Management Feedback Signal 'A,' which is part of the system that ensures proper engine and transmission performance by monitoring torque requests and feedback.

2. What are the common symptoms of code P2637 in a Dodge?

Symptoms may include reduced engine performance, poor acceleration, transmission shifting issues, and the illumination of the Check Engine Light.

3. What causes the P2637 code to appear on my Dodge?

Common causes include a malfunctioning torque management sensor, damaged or corroded wiring or connectors, a faulty powertrain control module (PCM), or issues with the transmission or engine control systems.

4. Can I drive my Dodge with the P2637 code active?

While the vehicle may still operate, driving with this code can lead to poor performance, potential damage to the engine or transmission, and unsafe driving conditions. Itâ€™s best to address the issue promptly.

5. How do I diagnose the P2637 code on my Dodge?

Diagnosis involves scanning the vehicleâ€™s ECU for additional codes, inspecting wiring and connectors related to the torque management system, and testing the torque management sensor and related components.

6. How do I fix the P2637 code on a Dodge?

Repairs may include replacing the torque management sensor, repairing or replacing damaged wiring or connectors, reprogramming or replacing the PCM, or addressing transmission-related issues.

7. Can a faulty PCM cause the P2637 code on a Dodge?

Yes, a malfunctioning PCM can fail to properly process torque management signals, leading to the P2637 code.

8. How much does it cost to fix the P2637 code on a Dodge?

Repair costs can vary widely but typically range from $100 to $500 depending on whether the issue involves sensor replacement, wiring repairs, or PCM reprogramming or replacement.

9. Will clearing the code with an OBDII scanner fix the P2637 issue?

Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be addressed to prevent the code from returning.

10. Is the P2637 code related to the transmission on a Dodge?

Yes, it can be related to the transmission because the torque management system helps regulate transmission performance and shifting, along with engine torque.