Engine-Codes.com
Engine-Codes – Generic – P2585

P2585 Code - Fuel Additive Control Module Warning Lamp Request

Quick Answer

The P2585 diagnostic trouble code refers to the Fuel Additive Control Module Warning Lamp Request. Common causes include Faulty Fuel Additive Control Module: The most common cause of the P2585 code is a malfunctioning fuel additive control module, Wiring Issues: Corrosion or damage to the wiring connected to the fuel additive system can also trigger this code, Faulty Sensors: Sensors responsible for monitoring fuel additive levels may be faulty, leading to inaccurate readings. 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
P2585 indicates Fuel Additive Control Module Warning Lamp Request.
Common causes
Common causes include Faulty Fuel Additive Control Module: The most common cause of the P2585 code is a malfunctioning fuel additive control module, Wiring Issues: Corrosion or damage to the wiring connected to the fuel additive system can also trigger this code, Faulty Sensors: Sensors responsible for monitoring fuel additive levels may be faulty, leading to inaccurate readings.
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 07, 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 P2585 Description

The P2585 diagnostic trouble code refers to the Fuel Additive Control Module Warning Lamp Request. This code indicates that there is a malfunction in the fuel additive control module, which is responsible for managing and regulating the fuel additive system in the vehicle. The fuel additive system is designed to improve fuel efficiency, reduce emissions, and protect the engine components from wear and tear.

OBDII Code P2585 - Fuel Additive Control Module Warning Lamp Request
P2585 Code - Fuel Additive Control Module Warning Lamp Request

Common Causes of P2585

  1. Faulty Fuel Additive Control Module: The most common cause of the P2585 code is a malfunctioning fuel additive control module.
  2. Wiring Issues: Corrosion or damage to the wiring connected to the fuel additive system can also trigger this code.
  3. Faulty Sensors: Sensors responsible for monitoring fuel additive levels may be faulty, leading to inaccurate readings.
  4. Software Glitch: In some cases, a software glitch in the vehicle's onboard computer can cause the fuel additive control module warning lamp request.

Symptoms of P2585

  1. Check Engine Light: The most common symptom associated with the P2585 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Fuel Efficiency: A malfunctioning fuel additive control module can lead to decreased fuel efficiency, causing the vehicle to consume more fuel than usual.
  3. Rough Idling: The engine may experience rough idling or hesitation when the fuel additive system is not functioning properly.
  4. Engine Misfires: In severe cases, the vehicle may experience engine misfires or a loss of power due to the improper fuel additive management.

How to Fix P2585

  1. Diagnose the Issue: The first step in repairing the P2585 code is to use an OBD-II scanner to diagnose the specific cause of the problem.
  2. Inspect Wiring and Sensors: Check the wiring and sensors connected to the fuel additive control module for any signs of damage or corrosion.
  3. Replace Fuel Additive Control Module: If the control module is faulty, it will need to be replaced with a new one to resolve the issue.
  4. Clear the Code: After repairing the problem, clear the diagnostic trouble code from the vehicle's onboard computer to reset the check engine light.
  5. Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the fuel additive system is functioning properly.

Cost to Fix P2585

The typical repair costs for addressing the P2585 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing a faulty fuel additive control module can range from $200 to $500, including parts and labor. Additional costs may apply if there are wiring or sensor issues that need to be addressed. It's important to note that labor rates can vary between $80 and $150 per hour at most auto repair shops, so it's advisable to check local rates for a more accurate estimate.

Need more information about the P2585 code?

Need more information on how to fix the P2585 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2585 code diagnosed by a professional: Find a repair shop in your area

Code P2585 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 P2585 Code

No Frequently Asked Questions about P2585 Code found.

Discuss the causes and fixes for P2585 OBDII Code

Submit a New Comment

Code P2585 comments

No comments found for this page.