AutoCodes – Mitsubishi – P1831 Mitsubishi

P1831 Mitsubishi Code - Shift Fork Position Sensor 3 System Voltage Hihg Range Out

Quick Answer

The Transmission Control Module (TCM) monitors the Shift Fork Position Sensor 3. Common causes include Faulty Shift Fork Position Sensor 3, Shift Fork Position Sensor 3 harness is open or shorted, Shift Fork Position Sensor 3 circuit poor electrical connection. 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: P1831 Mitsubishi indicates Shift Fork Position Sensor 3 System Voltage Hihg Range Out.
Common causes: Common causes include Faulty Shift Fork Position Sensor 3, Shift Fork Position Sensor 3 harness is open or shorted, Shift Fork Position Sensor 3 circuit poor electrical connection.
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 4,524

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 Jan 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1831 Mitsubishi Description

The Transmission Control Module (TCM) monitors the Shift Fork Position Sensor 3. The TCM sets the OBDII code when the Shift Fork Position Sensor 3 is not to factory specifications.

OBDII Code P1831 Mitsubishi - Shift Fork Position Sensor 3 System Voltage Hihg Range Out - AutoCodes.com — P1831 Mitsubishi Code - Shift Fork Position Sensor 3 System Voltage Hihg Range Out

What does this mean?

What are the Possible Causes of the DTC P1831 Mitsubishi?

Faulty Shift Fork Position Sensor 3
Shift Fork Position Sensor 3 harness is open or shorted
Shift Fork Position Sensor 3 circuit poor electrical connection

How to Fix the DTC P1831 Mitsubishi?

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 P1831 Mitsubishi 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 P1831 Mitsubishi code?

Need more information on how to fix the P1831 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1831 Mitsubishi 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 P1831 Mitsubishi Code

1. What does the OBDII code P1831 mean for a Mitsubishi vehicle?

P1831 indicates an issue with the Shift Fork Position Sensor 3, specifically that the system voltage is too high or out of range.

2. What are the common symptoms of the P1831 code?

Symptoms may include difficulty shifting gears, erratic transmission behavior, the check engine light or transmission warning light turning on, and a potential limp mode activation.

3. What causes the P1831 code to appear?

Common causes include a faulty Shift Fork Position Sensor 3, damaged or corroded wiring or connectors, a short circuit, or an issue with the transmission control module (TCM).

4. Can driving with the P1831 code damage my Mitsubishi vehicle?

Yes, continued driving with this code can lead to further transmission issues or unsafe driving conditions if shifting becomes unpredictable.

5. How can I diagnose the P1831 code?

Start by inspecting the wiring and connectors for the Shift Fork Position Sensor 3, test the sensor itself, and check for proper voltage and resistance readings. Use a scan tool to confirm the fault.

6. How is the P1831 code typically fixed?

Repairs may involve replacing the Shift Fork Position Sensor 3, repairing damaged wiring, cleaning corroded connectors, or reprogramming/updating the transmission control module.

7. How much does it cost to fix the P1831 code?

Repair costs can vary, but replacing the sensor typically ranges from $100 to $300, while labor costs for diagnosing and fixing wiring issues or TCM problems may add to the total.

8. Can a weak battery cause the P1831 code?

A weak or failing battery can cause voltage irregularities, which may trigger the P1831 code. Ensure the battery and charging system are in good condition.

9. Is the P1831 code specific to Mitsubishi vehicles?

While the P1831 code can appear in various makes, its definition as "Shift Fork Position Sensor 3 System Voltage High Range Out" is specific to Mitsubishi vehicles.

10. Do I need a professional to repair the P1831 code?

If you have the tools and knowledge, you can attempt the repair yourself. However, for complex diagnostics or if TCM reprogramming is needed, professional assistance is recommended.