Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 3509, Sensor Supply Voltage 1 – MID 128 SID 232 ECM SPN 3510, Sensor Supply Voltage 2 – MID 128 SID 211 71 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 atomization air valve FMI 12 • Bad intelligent device or component • Air pressure difference between atomization air valve opened and closed, too low • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • Possible soot buildup • Faulty atomization air valve Type of fault:
FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • Voltage above normal, or shorted to high source • Sensor supply voltage out of range (high) • MIL illuminated • Incorrect sensor values • Faulty harness or connector FMI 4 • Voltage below normal, or shorted to low source • Sensor supply voltage out of range (low) • MIL illuminated • Incorrect sensor values • Faulty harness or connector Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 3 • Voltage above normal, or shorted to high source • Circuit shorted + • MIL illuminated • Incorrect sensor values • Faulty harness or connector FMI 4 • Voltage below normal, or shorted to low source • Circuit shorted – • MIL illuminated • Incorrect sensor values • Faulty harness or connector