LeeBoy 8520C - Page 151

SPN FMI DTC SYMPTOM/CAUSE RECOVERY FROM ERROR
652 3
Open circuit of har-
ness/coil in 2nd cylinder
injector.
Open circuit of harness or injector coil.
Engine vibration increases. Injectors
that have no error are operated.
Key switch turn OFF.
653 3
Open circuit of har-
ness/coil in 3rd cylinder
injector.
Open circuit of harness or injector coil.
Engine vibration increases. Injectors
that have no error are operated.
Key switch turn OFF.
654 3
Open circuit of har-
ness/coil in 4th cylinder
injector.
Open circuit of harness or injector coil.
Engine vibration increases. Injectors
that have no error are operated.
Key switch turn OFF.
676 0
Glow heater relay driving
circuit overheat.
Glow relay coil resistance or load is
too high. Faulty starting. White smoke
increases.
Key switch turn OFF.
676 5
Open circuit of glow relay
driving circuit.
Open circuit of harness or relay
coil. Faulty starting. White smoke
increases.
Key switch turn OFF.
679 7 Pressure limiter not open.
Rail pressure value is sticking or not
enough engine power to open PLV
forcibly.
Key switch turn OFF.
723 2
G sensor pulse number
error.
After fault opening PLV, rail pressure is
above 160 MPa.
Diagnostic counter = zero
Engine stops.
723 8
No input of G sensor
pulse.
Open circuit or short circuit of sensor/
harness. Failure of sensor. No rec-
ognition of G sensor pulse. Engine
hesitates at start-up.
Diagnostic counter = zero
1077 2 Failure of CPU. CPU fatal error. Engine stops. Key switch turn OFF.
1239 1
Fuel leak in high-pres-
sured fuel system.
Fuel consumption is calculated from
the difference of fuel pressure of,
before and after the injection. Error is
detected when excess fuel consump-
tion is found. Engine could stop.
Key switch turn OFF.
1347 3 +B short circuit of SCV. EGR stops. Key switch turn OFF.
1347 4 SVC drive system error.
Open circuit or ground short circuit of
SCV.
Key switch turn OFF.
EGR stops, engine forcibly stops later.
1347 5
Open circuit of SCV
(MPROP)
Open circuit short of SVC.
Key switch turn OFF.
EGR stops, engine forcibly stops later.
1347 7
SCV stuck in open
position.
Actual rail pressure continuously
exceeds the command rail pressure.
Discharge request of supply pump
goes below 0 mm
3
/st and the actual
rail pressure is 10 MPa for 26 seconds
or more. Engine may stop.
Key switch turn OFF.
1485 2
Main relay locked in
closed position.
Failure of main relay. Stays active
longer than one second without com-
mand. Battery goes dead.
Diagnostic counter = zero
3242 0
Emergency exhaust gas
temperature sensor 1:
High
DPF inlet temperature higher than
1319° F (715° C). Engine stops. Inhibit
starter relay activation until exhaust
temperatures reduces down to 572° F
(300° C).
Under 572° F (300° C) and key switch
turn OFF.
5555
LeeBoy 8520C Conveyor Paver 5-59
Maintenance