Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 3031, Aftertreatment Diesel Exhaust Fluid (DEF) Tank Temperature MID 128 PPID 274 ECM SPN 3064, Aftertreatment DPF System Monitor – MID 128 PPID 326 55 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 0 • Data valid but above normal operational range - Most severe level • Aftertreatment Diesel Exhaust Fluid (DEF) tank temperature too high • Date data message missing on SAE J1587 data link. (Cluster error).
• MIL illuminated • No Aftertreatment Diesel Exhaust Fluid (DEF) dosing • DEF tank pickup assembly/sensor failure FMI 4 • Voltage below normal, or shorted to low source • Short Circuit - • MIL illuminated • DEF tank pickup assembly/sensor failure • DEF tank pickup asssembly/sensor wiring or connectors FMI 5 • Current below normal or open circuit • Short Circuit + • Open Circuit • MIL illuminated • DEF tank pickup assembly/sensor failure • DEF tank pickup assembly/sensor wiring or connectors FMI 8 • Abnormal frequency or pulse width or period • Sensor ripple is not too high • N/A • DEF tank pickup assembly/sensor failure • DEF tank pickup ‘assembly/sensor wiring or connectors Type of fault:
FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 0 • Data valid but above normal operational range - Most severe level • Moderately high soot load • Yellow electronic malfunction lamp illuminated • Medium to high engine derate • Diesel Particulate Filter (DPF) clogged • After Treatment Fuel Injector clogged • Regeneration disabled by driver or other component FMI 10 • Abnormal rate of change • Soot loading high due to heavy load or use (no problem) • Yellow electronic malfunction lamp illuminated • Engine derate • No error, condition occurs during heavy load or use with high soot loading FMI 11 • Root cause not known • Critically high soot load • Red engine shutdown lamp illuminated • High engine derate • Engine derate • Diesel Particulate Filter (DPF) clogged • Aftertreatment hydrocarbon doser (injector) • Regeneration disabled by driver or other component