AutoCodes – Generic – P2793

P2793 Code - Gear Shift Direction Circuit

Quick Answer

The Transmission Control Module (TCM) monitors the Gear Shift Direction Circuit signal. Common causes include Defective Range Sensor, Faulty Transmission Shifter, Transmission Shifter harness is open or shorted. 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: P2793 indicates Gear Shift Direction Circuit.
Common causes: Common causes include Defective Range Sensor, Faulty Transmission Shifter, Transmission Shifter harness is open or shorted.
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 21,398

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 Feb 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2793 Description

The Transmission Control Module (TCM) monitors the Gear Shift Direction Circuit signal. The TCM sets the OBDII code when the Gear Shift Direction Circuit Circuit signal is out of factory specifications.

OBDII Code P2793 - Gear Shift Direction Circuit - AutoCodes.com — P2793 Code - Gear Shift Direction Circuit

What does this mean?

What are the Possible Causes of the DTC P2793?

Defective Range Sensor
Faulty Transmission Shifter
Transmission Shifter harness is open or shorted
Transmission Shifter circuit poor electrical connection

How to Fix the DTC P2793?

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 P2793 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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Information for Specific Makes

P2793 Dodge — Gear Shift Direction Circuit

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 P2793 Code

No Frequently Asked Questions about P2793 Code found.

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James Ocker
Date: July 22, 2019 at 7:34 pm

p2793 occurs on my Allison trans hooked to C13. this trans controls pump not a rig. seems to occur when trans in neutral and pump rolls from pressure on iron giving an out put shaft signal with an input shaft signal of 0.

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