AutoCodes – Ford – P0815 Ford

P0815 Ford Code - Upshift Switch Circuit Fault

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 Ford indicates Upshift Switch Circuit Fault.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,856

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
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0815 Ford 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 Ford - Upshift Switch Circuit Fault - AutoCodes.com — P0815 Ford Code - Upshift Switch Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P0815 Ford?

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

How to Fix the DTC P0815 Ford?

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 Ford 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 Ford code?

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

Need Help with the Code?

Get the P0815 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

P0815 2006 Ford Fusion — Upshift Switch Circuit Fault
P0815 2007 Ford Fusion — Upshift Switch Circuit Fault
P0815 2008 Ford Fusion — Upshift Switch Circuit Fault
P0815 2009 Ford Fusion — Upshift Switch Circuit Fault
P0815 2010 Ford Fusion — Upshift Switch Circuit Fault
P0815 2011 Ford Fusion — Upshift Switch Circuit Fault
P0815 2012 Ford Fusion — Upshift Switch Circuit Fault

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.