User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
ECMSPN656,EngineInjectorCylinder6–MID128SID6
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI3
•Voltageabove
normal,orshorted
tohighsource
•Harnessshorted+
lowsidecircuit
•MILilluminated
•Yellowelectronic
malfunctionlamp
illuminated
•Enginepowerloss
•Enginerunning
uneven(misre)
•Faultyharness
FMI5
•Currentbelow
normaloropen
circuit
•Harnessshorted
+,–oropenhigh
sidecircuit
•Harnessshorted–
lowsidecircuit
•MILilluminated
•Yellowelectronic
malfunctionlamp
illuminated
•Enginepowerloss
•Enginerunning
uneven(misre)
•Faultyharness
•Faultyenginefuelinjector
FMI7
•Mechanicalsystem
notresponding
properly
•Cylinderbalancing
dataabovelimit
•MILilluminated
•Yellowelectronic
malfunctionlamp
illuminated
•PTOengagedwithoutECMknowing
•Faultyenginefuelinjector
•Lowcylindercompression
•Damagedorywheel
FMI8
•Abnormalfrequency,
pulsewidth,or
period
•Misredetected•MILilluminated
•Roughengineidle
•Faultyenginefuelinjector(possibly
clogged)
FMI13
•Outofcalibration•Cylinderbalancing
dataabovelimit
•MILilluminated
•Yellowelectronic
malfunctionlamp
illuminated
•PTOengagedwithoutECMknowing
•Faultyenginefuelinjector
•Lowcylindercompression
•Damagedorywheel
FMI31
•Conditionexists•Misredetected•MILilluminated
•Roughengineidle
•Faultyenginefuelinjector(possibly
clogged)
ECMSPN677,EngineStarterMotorRelay–MID128SID39
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI3
•Voltageabove
normal,orshorted
tohighsource
•Circuitshorted+•Yellowelectronic
malfunctionlamp
illuminated
•Enginewillnot
start
•Faultystarterrelay
•Faultharness
43