User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
ECMSPN626,IntakeAirHeater(IAH)Relay–MID128PID45
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI3
•Voltageabove
normal,orshorted
tohighsource
•ShortCircuit+,
Measuringline
•Preheatrelaynot
activated
•Whitesmokefor
coldstart
•Startproblemsin
coldclimate
•Preheatrelaysolenoidshorted
FMI4
•Voltagebelow
normal,orshorted
tolowsource
•ShortCircuit-,
Measuringline
•Redengine
shutdownlamp
illuminated(13L
engineCXU,CHU
andGUonly)
•Yellowelectronic
malfunctionlamp
illuminated
•Inductionairishot
•Preheatrelayis
impossibletoturn
off
•Faultyharness
FMI5
•Currentbelow
normaloropen
circuit
•OpenCircuit•Preheatrelaynot
activated
•Whitesmokefor
coldstart
•Startproblemsin
coldclimate
•FaultyPreheatrelay
•Faultyharness
ECMSPN628,ProgramMemory–MID128SID240
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI2
•Dataerratic,
intermittentor
incorrect
•Checksumerror•Redengine
shutdownlamp
illuminated
•Enginewillnot
start
•EngineControlModule(ECM)
software
FMI11
•Rootcausenot
known
•Badsoftware
conguration
•MILilluminated
•Enginewillnot
start
•EngineControlModule(ECM)
software
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