AutoCodes – Mitsubishi – P0815 Mitsubishi

P0815 Mitsubishi Code - Upshift Switch Circuit

Quick Answer

The Transmission Control Module (TCM) monitors the Upshift Switch Circuit signal. Common causes include Faulty Upshift Switch, Upshift Switch harness is open or shorted, Upshift Switch 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: P0815 Mitsubishi indicates Upshift Switch Circuit.
Common causes: Common causes include Faulty Upshift Switch, Upshift Switch harness is open or shorted, Upshift Switch 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 2,684

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 May 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0815 Mitsubishi Description

The Transmission Control Module (TCM) monitors the Upshift Switch Circuit signal. The TCM sets the OBDII code when the Upshift Switch Circuit signal is not to factory specifications.

OBDII Code P0815 Mitsubishi - Upshift Switch Circuit - AutoCodes.com — P0815 Mitsubishi Code - Upshift Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P0815 Mitsubishi?

Faulty Upshift Switch
Upshift Switch harness is open or shorted
Upshift Switch circuit poor electrical connection

How to Fix the DTC P0815 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 P0815 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 P0815 Mitsubishi code?

Need more information on how to fix the P0815 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0815 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 P0815 Mitsubishi Code

1. What are common symptoms of OBDII code P0815 in a Mitsubishi related to the Upshift Switch Circuit?

The common symptoms include issues with shifting gears, difficulty engaging specific gears, and the Check Engine Light illuminating on the dashboard.

2. What does the OBDII code P0815 in a Mitsubishi indicate about the Upshift Switch Circuit?

This code indicates a malfunction in the upshift switch circuit, which is responsible for signaling the transmission to shift to a higher gear.

3. What are possible causes of OBDII code P0815 in a Mitsubishi?

Possible causes include a faulty upshift switch, damaged wiring or connectors in the upshift circuit, or issues with the transmission control module.

4. How can I diagnose the OBDII code P0815 in my Mitsubishi related to the Upshift Switch Circuit?

Diagnosis involves checking the upshift switch for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to read the code and clear it for testing purposes.

5. Can driving with OBDII code P0815 in a Mitsubishi cause further damage?

Continuing to drive with this code may lead to poor shifting performance and potential damage to the transmission over time. It is recommended to address the issue promptly.

6. How can I repair OBDII code P0815 in my Mitsubishi related to the Upshift Switch Circuit?

Repair may involve replacing the faulty upshift switch, repairing damaged wiring or connectors, or resetting the transmission control module after addressing the root cause of the issue.

7. Is it possible to reset the OBDII code P0815 in a Mitsubishi without fixing the underlying problem?

While you can clear the code using a scan tool, it is crucial to diagnose and repair the issue causing the code to prevent it from recurring and potentially causing further problems.

8. Can a DIY enthusiast fix OBDII code P0815 in a Mitsubishi related to the Upshift Switch Circuit?

Depending on the skill level and experience, some DIY enthusiasts may be able to diagnose and repair this code by following the manufacturer's service manual and using appropriate tools.

9. How much does it typically cost to repair OBDII code P0815 in a Mitsubishi at a professional repair shop?

The cost can vary based on the specific cause of the issue, but it may range from $100 to $300 for parts and labor, including diagnostic fees.

10. How can I prevent OBDII code P0815 from occurring in my Mitsubishi in the future?

Regular maintenance, including checking the transmission system and upshift switch, can help prevent this code from appearing. Addressing any issues promptly can also prevent further damage.