Sakai SV510-III, Shop Manual

Page: 189 / 248

9-017
TROUBLESHOOTING
Fault code
(Lamp)
Reason Effect
422
(Orange)
Coolant level reading incorrect. No action taken by the ECM.
425
(Orange)
Oil temperature in-range error. No action taken by the ECM.
426
(None)
SAE J1939 datalink
Data erratic, intermittent, or incorrect.
Communication between the ECM and
another device on the SAE J1939 datalink has
been lost.
•
None on performance. J1939 devices possibly
do not operate.
435
(Orange)
Engine oil pressure switch error. An error in the
engine oil pressure switch signal was detected
by the ECM.
None on performance. No engine protection for
oil pressure.
441
(Orange)
Battery 1 voltage
Data valid but below normal operation range.
Moderately Severe Level. ECM supply voltage
is below the minimum system voltage level.
•
•
Engine may stop running or be difficult to start.
442
(Orange)
Battery 1 Voltage
Data valid but above normal operation range.
Moderately severe level. ECM supply voltage
is above the maximum system voltage level.
•
•
Possible electrical damage to all electrical
components.
449
(Red)
Injector metering rail 1 pressure
Data valid but above normal operation range.
Most severe level.
•
•
None or possible engine noise associated with
higher injection pressures (especially at idle or
light load). Engine power is reduced.
451
(Orange)
Injector metering rail 1 pressure sensor circuit
Voltage above normal or shorted to high
source. High signal voltage detected at the rail
fuel pressure sensor circuit.
•
Power and/or speed derate.
452
(Orange)
Injector metering rail 1 pressure sensor circuit
Voltage below normal or shorted to low
source. Low signal voltage detected at the rail
fuel pressure sensor circuit.
•
Power and/or speed derate.
488
(Orange)
Intake manifold 1 temperature
Data valid but above normal operation range.
Moderately severe level. Intake manifold air
temperature signal indicates intake manifold
air temperature is above the engine protection
warning limit.
•
•
Progressive power derate increasing in severity
from time of alert.
546
(Orange)
Fuel delivery pressure sensor circuit
Voltage above formal or shorted to high
source.
•
No action taken by the ECM.
547
(Orange)
Fuel delivery pressure sensor circuit
Voltage below normal or shorted to low
source.
•
No action taken by the ECM.
553
(Orange)
Injector metering rail 1 pressure
Data valid but above normal operation range.
Moderately severe level. The ECM has
detected that fuel pressure is higher than
commanded pressure.
•
•
None or possible engine noise associated with
higher injection pressures (especially at idle or
light load). Engine power is reduced.
554
(Orange)
Injector metering rail 1 pressure
Data erratic, intermittent, or incorrect. The
ECM has detected that the fuel pressure
signal is not changing.
•
The ECM will estimate fuel pressure and power
is reduced.