User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
FMI15
•Datavalidbutabove
normaloperating
range-Leastsevere
level
•Sensoroutof
range
•Sensorindicatesa
invalidvalue
•MILilluminated•FaultySensor
FMI17
•Datavalidbutbelow
normaloperating
range-Leastsevere
level
•Sensoroutof
range
•Sensorindicatesa
invalidvalue
•MILilluminated•FaultySensor
ECMSPN158,KeyswitchBatteryPotential–MID128PID158/PSID124
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI0
•Datavalidbutabove
normaloperational
range
•EngineControl
Modulebattery
voltagetoohigh
•N/A•Chargingsystemfault
•Externalcharger
•Enginecontrolmodule(ECM)
FMI1
•Datavalidbutbelow
normaloperational
range
•EngineControl
Modulebattery
voltagetoolow
•Starterwillnot
crank
•Chargingsystemfault
•Battery
•Groundconnection
FMI3
•Voltageabove
normal,orshorted
tohighsource
•EngineControl
Modulebattery
voltagetoohigh
•N/A•Chargingsystemfault
•Externalcharger
•Enginecontrolmodule(ECM)
FMI4
•Voltagebelow
normal,orshorted
tolowsource
•EngineControl
Modulebattery
voltagetoolow
•Starterwillnot
crank
•Chargingsystemfault
•Battery
•Groundconnection
FMI16
•Datavalidbutabove
normaloperating
range-Moderately
severelevel
•EngineControl
Modulebattery
voltagetoohigh
•N/A•Chargingsystemfault
•Externalcharger
•Enginecontrolmodule(ECM)
FMI18
•Datavalidbutbelow
normaloperating
range-Moderately
severelevel
•EngineControl
Modulebattery
voltagetoolow
•Starterwillnot
crank
•Chargingsystemfault
•Battery
•Groundconnection
ECMSPN171,AmbientAirTemperature–MID128PID171
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI2
•Dataerratic,
intermittentor
incorrect
•KeyON,Ambient
AirTemperature
messagemissing
onSAEJ1939and
SAEJ1587data
links
•N/A•Faultyinstrumentcluster
•Faultyharness
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