Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 3480, Aftertreatment Diesel Particulate Filter (DPF) Fuel Pressure/ MP7 Engine MID 128 PPID 437 65 FMI 10 • Abnormal rate of change • Aftertreatment hydrocarbon doser fuel pressure sensor stuck • Aftertreatment hydrocarbon doser fuel pressure too high • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty DPF fuel pressure sensor • Faulty aftertreatment fuel shut off valve • Aftertreatment hydrocarbon doser FMI 15 • Data valid but above normal operating range - Least severe level • Fuel pressure sensor is out of range • Sensor indicates a invalid value • MIL illuminated • Regeneration not possible • Faulty fuel pressure sensor • Faulty harness Type of fault:
FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 2 • Data erratic, intermittent or incorrect • Aftertreatment DPF fuel control valve pressure too low • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty DPF fuel pressure sensor FMI 3 • Voltage above normal, or shorted to high source • Circuit shorted to + • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty harness • Faulty DPF fuel pressure sensor FMI 5 • Current below normal or open circuit • Open circuit • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty harness • Faulty DPF fuel pressure sensor FMI 7 • Mechanical system not responding or out of adjustment • Fuel pressure either too high or low • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Possible soot buildup • Faulty fuel pressure regulator • Aftertreatment DPF atomization module (fuel pressure regulator)