Fuel Additive Control Module Warning Lamp Request

Where it lives

For P2585, the part to look at first is the module named here.

Check these first

• The fuel additive control module is requesting the warning lamp
• A low fuel additive level
• A failed fuel additive pump
• A fault in the fuel additive level sensor

What to do next

1. Scan the fuel additive control module for its own codes
2. Check the fuel additive level
3. Check the fuel additive pump operation
4. Check the fuel additive level sensor signal
5. Replace the fuel additive control module if the level and pump test good
6. Clear the code and retest

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