My gmc 2500he sierra has a code reading of 0404 eve out of range. What does this mean?

Asked by GuruW839R May 18, 2018 at 09:34 AM about the 2001 GMC Sierra 2500HD 4 Dr SLE 4WD Crew Cab LB HD

Question type: Maintenance & Repair

Engine lite is on and code is 0404.

1 Answer

25,660

My GM Shop Service Manual describes this code as: Exhaust Gas Recirculation Circuit Range/Performance. The causes can be: Open or short in the 5 Volt reference circuit. Open or short in the ground circuit. Open or short in the PCM controlled voltage circuit. Bad PCM (less likely).

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