Volvo All Engines (2004 Emissions) Fault Code: PID 404 FMI 0 Compressor Discharge Temperature

Fault Condition: The Compressor Discharge Temperature code will set if the calculated discharge temperature has exceeded 446°F (230°C) for 25 seconds. The fault will become inactive if the calculated compressor discharge temperature is below 410°F (210°C). Engine power may be reduced when the calculated compressor discharge temperature exceeds 446°F (230°C). This temperature fault code can only be set while the vehicle is driven.

Higher horsepower engines may generate excessive compressor discharge temperatures. Refer to message status information rather than fault codes for this situation.

Possible repairs:

1) Verify that code PID 404 is set. If code PID 404 is not set, the problem may be intermittent. Check for any loose, corroded, and or damaged terminals at the Engine Management System (EMS) Module. Repair and or replace as necessary.
2) The primary cause for high compressor temperature is high inlet air temperature. The inlet air should be no more than 20°F (7°C) above ambient temperature. Check for sources of underhood air getting into the air intake duct. Check all air intake ducts for cracks, damaged clamps and improper connections. If any cracks, damaged clamps or improper connections are found, repair and replace as necessary. If no cracks, damaged clamps or improper connections are found, the problem may be intermittent. Check for any loose, corroded, and or damaged terminals at the Engine Management System (EMS) Module. Repair and or replace as necessary.