Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 3472, Aftertreatment Diesel Particulate Filter (DPF) Air Pressure Control Actuator– MID 128 PSID 58 63 FMI 12 • Bad intelligent device or component • Aftertreatment DPF fuel control valve fuel pressure too low • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty aftertreatment fuel pump FMI 14 • Special instructions • Aftertreatment DPF fuel control valve fuel pressure too high • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty harness • Faulty aftertreatment fuel pump Type of fault: FMI Description:
Fault Condition: Possible Symptoms: Possible Cause:
FMI 3 • Voltage above normal, or shorted to high source • Circuit shorted to + • MIL illuminated • Yellow electronic malfunction lamp illuminated • Aborted regeneration • Regeneration not possible • Faulty harness • Faulty air shutoff valve FMI 4 • Voltage below normal, or shorted to low source • Circuit shorted to – • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Faulty harness • Faulty air shutoff valve FMI 5 • Current below normal or open circuit • Open circuit • MIL illuminated • Yellow electronic malfunction lamp illuminated • Aborted regeneration • Regeneration not possible • Faulty harness • Faulty air shutoff valve