Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 3695, Aftertreatment Diesel Particulate Filter (DPF) Switch/MP8 Engine MID 128 PSID 114 ECM SPN 3720, Aftertreatment DPF Ash Load Percent – MID 128 PPID 337 76 FMI 5 • Current below normal or open circuit • Open circuit • On/off valve can’t be activated • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • High engine braking without request • Driveability affected • Faulty bypass valve solenoid • Faulty harness • Faulty harness connector FMI 7 • Mechanical system not responding or out of adjustment • Mechanically Stuck • On/off valve can’t be activated • MIL illuminated • Yellow electronic malfunction lamp illuminated • Regeneration not possible • High engine braking without request • Driveability affected • Valve constantly activated • Major engine derate • Exhaust manifold overheating • Engine shut down • Leaking pipes • Faulty bypass valve solenoid Type of fault:
FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 9 • Abnormal update rate • Signal missing from aftertreatment DPF switch • Yellow electronic malfunction lamp illuminated • Faulty harness Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 0 • Data valid but above normal operational range - Most severe level • Ash level too high • Yellow electronic malfunction lamp illuminated • Need service, ash level is too high