User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
ECMSPN1072,EngineCompressionBrakeOutput#1–MID128PPID122
Typeof
fault
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause
FMI1
•Datavalidbutbelow
normaloperational
range-Mostsevere
level
•Belowrange•NoEngine
Compression
Brake
•Lowengineoiltemperature
FMI3
•Voltageabove
normal,orshorted
tohighsource
•ShortCircuit+•Yellowelectronic
malfunctionlamp
illuminated
•Engine
Compression
Brakecannot
beturnedon
•Enginebrake
functionderated
•Gearshift
performance
deratedfor
someautomatic
transmissions
•FaultyEngineCompressionBrake
actuator
•Faultyharness
FMI4
•Voltagebelow
normal,orshorted
tolowsource
•ShortCircuit-•Yellowelectronic
malfunctionlamp
illuminated
•Compression
brakecannot
beturnedoff
•Enginestops
running
•Engineimpossible
torestart
•FaultyEngineCompressionBrake
actuator
•Faultyharness
FMI5
•Currentbelow
normaloropen
circuit
•OpenCircuit•Yellowelectronic
malfunctionlamp
illuminated
•Compressionrake
cannotbeturned
on
•Enginebrake
functionderated
•Gearshift
performance
deratedfor
someautomatic
transmission
boxes
•FaultyEngineCompressionBrake
actuator
•Faultyharness
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