AutoCodes – Dodge – P1793 Dodge

P1793 Dodge Code - Torque Reduction Link Communication Error

Quick Answer

The system is tested during torque-managed shifts with a Throttle angle above 54 degrees. Common causes include Torque Management Request Sense Circuit harness is open or shorted, Torque Management Request Sense Circuit poor electrical connection, Faulty Powertrain Control Module (PCM). 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: P1793 Dodge indicates Torque Reduction Link Communication Error.
Common causes: Common causes include Torque Management Request Sense Circuit harness is open or shorted, Torque Management Request Sense Circuit poor electrical connection, Faulty Powertrain Control Module (PCM).
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 370

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 27, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1793 Dodge Description

The system is tested during torque-managed shifts with a Throttle angle above 54 degrees. This system is also tested whenever the vehicle is stopped and the engine speed is below 1000 RPM. This code is set when the Transmission Control Module (TCM) sends two subsequent Torque Reduction (TRD) messages (pulses the TRD ckt to ground) to the Powertrain Control Module (PCM) via the TRD link circuit and the TCM does not receive a confirmation from the PCM over the communication bus.

OBDII Code P1793 Dodge - Torque Reduction Link Communication Error - AutoCodes.com — P1793 Dodge Code - Torque Reduction Link Communication Error

What does this mean?

What are the Possible Causes of the DTC P1793 Dodge?

Torque Management Request Sense Circuit harness is open or shorted
Torque Management Request Sense Circuit poor electrical connection
Faulty Powertrain Control Module (PCM)
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1793 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 P1793 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.