LeeBoy 8520C - Page 153

SPN FMI DTC SYMPTOM/CAUSE RECOVERY FROM ERROR
3701 16 Excessive PM 4.
PM accumulation more than trigger
level. Regeneration Level = 4.
Diagnostic counter = 0
4765 0
Emergency exhaust gas
temperature sensor 0:
High
DOC inlet temperature 1292° F (700°
C) or more. Engine stops.
Key switch turn OFF.
Inhibit starter relay activation until
exhaust temperature reduces down to
527° F (300° C).
4765 3
Exhaust gas temperature
sensor 0: High
Open circuit or +B short circuit of
sensor/harness. DOC inlet tempera-
ture sensor voltage 4.92V or more.
Key switch turn OFF.
4765 4
Exhaust gas temperature
sensor 0: Low
Open circuit or +B short circuit of
sensor/harness. DOC inlet tempera-
ture sensor voltage 0.08V or less.
Key switch turn OFF.
523523 2
Injector drive circuit open
in Nos. 1 & 4 cylinder
simultaneously.
Wiring harness open circuit. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523523 3
Nos. 1 & 4 cylinder injector
short to +B at power
supply side, or all cylinder
injectors short to +B.
Wiring harness short to +B. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523523 4
Nos. 1 & 4 cylinder injector
short to ground at power
supply side, or all cylinder
injectors short to ground.
Wiring harness short to ground. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523524 2
Injector drive circuit open
in Nos. 2 & 3 cylinder
simultaneously.
Wiring harness open circuit. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523524 3
Nos. 2 & 3 cylinder
injector short to +B at
power supply side, or all
cylinder injectors short
to +B.
Wiring harness short to +B. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523524 4
Nos. 2 & 3 cylinder
injector short to ground at
power supply side, or all
cylinder injectors short to
ground.
Wiring harness short to ground. Injec-
tors that have no DTC are operated.
Engine vibration increases and may
stop.
Key switch turn OFF.
523525 1
Injector charge voltage
low.
Injector charge voltage low. Failure
of charge circuit of ECU. Engine may
stop.
Key switch turn OFF.
523527 2 ECU monitoring error.
Failure of monitoring IC of CPU.
Engine stops.
Key switch turn OFF.
523535 0
Injector charge voltage:
High
EGR stops. Engine forcibly stops 60
seconds later.
Key switch turn OFF.
523536 2 EGR feedback error.
DC motor feedback control error.
During wrong duty feedback, activation
of restoration will repeat 30 times. If
the restoration was not successfully
completed, it will be judged as a feed-
back error. EGR stops.
Diagnostic counter = zero
5555
LeeBoy 8520C Conveyor Paver 5-61
Maintenance