User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
ECMSPN1231,SAEJ1939DataLink2–MID128PSID229/232
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI2
•Dataerratic,
intermittentor
incorrect
•Circuitshorted+
•Circuitshorted–
•Opencircuit
•MILilluminated
•Enginepowerloss
•NoAftertreatment
DieselExhaust
Fluid(DEF)
dosing
•Novariable
geometryengine
turbocharger
control
•Faultyharness
FMI9
•Abnormalupdate
rate
•Missingsignal
fromTransmission
ControlModule
(TCM)
•MILilluminated
•Yellowelectronic
malfunctionlamp
illuminated
•NoAftertreatment
DieselExhaust
Fluid(DEF)
dosing
•SAEJ1939datalink
•Faultyharnessorconnectors
•DEFpump
•AftertreatmentDieselExhaustFluid
(DEF)controlmodule
ECMSPN1265,EnginePistonCoolingOilPressureActuator–MID128
SID85
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI3
•Voltageabove
normal,orshorted
tohighsource
•Circuitshorted+•Yellowelectronic
malfunctionlamp
illuminated
•Possiblesmoke
duringstartup
•Faultyharness
•Faultyactuator
FMI4
•Voltagebelow
normal,orshorted
tolowsource
•Circuitshorted–•Redengine
shutdownlamp
illuminated
•Enginedamage
canoccurwithout
pistoncooling
•Faultyharness
•Faultyactuator
FMI5
•Currentbelow
normaloropen
circuit
•Opencircuit•Yellowelectronic
malfunctionlamp
illuminated
•Possiblesmoke
duringstartup
•Faultyharness
•Faultyactuator
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