FMI 5 Reaction from Engine Management System (EMS) Module: Current Below Normal or Open Circuit Conditions for fault code: MIL lamp illuminated Open circuit in 5 volt supply line Noticeable external symptoms: Short to ground in metering line Ceased regeneration Open circuit in the metering line FMI 12 Possible causes: Bad Intelligent Device or Component Particulate Trap Pressure (PTP) Sensor failure Conditions for fault code: Particulate Trap Pressure (PTP) Sensor signal high or low but still within range Faulty harness Reaction from Engine Management System (EMS) Module: Possible causes:
MIL lamp illuminated Diesel Particulate Filter (DPF) is damaged, filled with soot or missing Default value substituted Reaction from Engine Management System (EMS) Module: FMI 7 MIL lamp illuminated Mechanical System Not Responding or Out Of Adjustment Noticeable external symptoms: Engine derate Conditions for fault code: Particulate Trap Pressure (PTP) Sensor signal is the same below and above the Diesel Particulate Filter (DPF) filter Possible causes:
Diesel Particulate Filter (DPF) is missing Particulate Trap Pressure (PTP) Sensor failure Diesel Particulate Filter (DPF) casing/housing is cracked or damaged Particulate Trap Pressure (PTP) Sensor tubing or hose failure Page 22 MID 128-PID 81