OBD Guide

P2584

Fuel Additive Control Module Requested MIL Illumination

P2584 is an OBD-II diagnostic trouble code meaning: Fuel Additive Control Module Requested MIL Illumination. Common causes: malfunction of the fuel additive control module, open or short circuit in module circuits. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Deteriorating fuel economy
  • Possible problems starting the engine
  • Limiting engine operating modes

Causes

  • Malfunction of the fuel additive control module
  • Open or short circuit in module circuits
  • Problems with module power or grounding
  • Software error in control module
  • Mechanical damage to system components

How to Fix

  1. Check fault codes and system operating parameters
  2. Inspect the wiring harness and module connectors
  3. Check power supply and grounding of the module
  4. Test or replace fuel additive control module
  5. If necessary, update the module software

Related codes

Error P2584 by Vehicle Brand

FAQ

What does the P2584 code mean?

P2584 is an OBD-II diagnostic trouble code that indicates: Fuel Additive Control Module Requested MIL Illumination

What causes a P2584 error code?

The most common causes of P2584 include: Malfunction of the fuel additive control module; Open or short circuit in module circuits; Problems with module power or grounding; Software error in control module.

How do I fix a P2584 diagnostic trouble code?

To fix P2584: Check fault codes and system operating parameters. Inspect the wiring harness and module connectors. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2584?

Yes, but get it checked soon

How much does it cost to fix P2584?

The estimated repair cost for P2584 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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