Engine-Codes.com
Engine-Codes – Generic – P0815

P0815 Code - Upshift Switch Circuit

Quick Answer

The P0815 code refers to the Upshift Switch Circuit in the vehicle's transmission system. Common causes include Faulty upshift switch, Wiring issues or shorts in the upshift switch circuit, Electrical connection problems. 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 indicates Upshift Switch Circuit.
Common causes
Common causes include Faulty upshift switch, Wiring issues or shorts in the upshift switch circuit, Electrical connection problems.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0815 Description

The P0815 code refers to the Upshift Switch Circuit in the vehicle's transmission system. This code indicates that there is a malfunction or issue with the upshift switch circuit, which is responsible for controlling when the transmission shifts to a higher gear. The upshift switch circuit plays a crucial role in ensuring smooth and efficient gear changes while driving.

OBDII Code P0815 - Upshift Switch Circuit
P0815 Code - Upshift Switch Circuit

Common Causes of P0815

  1. Faulty upshift switch
  2. Wiring issues or shorts in the upshift switch circuit
  3. Electrical connection problems
  4. Malfunctioning transmission control module
  5. Corrosion or damage to the upshift switch circuit components

Symptoms of P0815

  1. Delayed or rough shifting between gears
  2. Inability to shift into higher gears
  3. Transmission slipping
  4. Illuminated check engine light
  5. Decreased fuel efficiency

How to Fix P0815

  1. Begin by conducting a thorough inspection of the upshift switch circuit, including the switch itself, wiring, and connections.
  2. Test the upshift switch using a multimeter to determine if it is functioning properly.
  3. Check for any loose or damaged wiring in the circuit and repair or replace as needed.
  4. Inspect the transmission control module for any faults or damage and replace if necessary.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0815

The cost of repairing a P0815 code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost for resolving this issue could be anywhere from $150 to $500. It's important to keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop.

Need more information about the P0815 code?

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

Need Help with the Code?

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

Code P0815 Information for Specific Makes

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 Code

No Frequently Asked Questions about P0815 Code found.

Discuss the causes and fixes for P0815 OBDII Code

Submit a New Comment

Code P0815 comments

No comments found for this page.