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3-30
Fault code
J1939 SPN
J1939 FMI
Reason
Effect (only when fault code is active)
436
105
2
Intake manifold 1 temperature - Data erratic,
intermittent, or incorrect. The intake manifold
temperature sensor is reading an erratic value
at initial key on or while the engine is running.
Possible reduced engine performance.
441
168
18
Battery 1 voltage - Data valid but below normal
operational range - Moderately severe level.
ECM supply voltage is below the minimum
system voltage level.
Engine may run rough, may stop running, may
not start, or may be difficult to start.
442
168
16
Battery 1 Voltage - Data valid but above normal
operational range - Moderately severe level.
ECM supply voltage is above the maximum
system voltage level.
None on performance.
451
157
3
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
157
4
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.
483
1349
3
Injector metering rail 2 pressure sensor circuit -
Voltage above normal or shorted to high
source. High signal voltage detected at the fuel
rail 2 pressure sensor circuit.
Possible reduced engine performance.
484
1349
4
Injector metering rail 2 pressure sensor circuit -
Voltage below normal or shorted to low source.
Low signal voltage detected at the fuel rail 2
pressure sensor circuit.
Possible reduced engine performance.
515
3514
3
Sensor supply 6 circuit - Voltage above normal
or shorted to high source.
High voltage detected on the +5 volt sensor
supply circuit to the fuel rail pressure sensor.
Engine power derate.
516
3514
4
Sensor supply 6 circuit - Voltage below normal
or shorted to low source.
Low voltage detected on the +5 volt sensor
supply circuit to the fuel rail pressure sensor.
Engine power derate.
553
157
16
Injector metering rail 1 pressure - Data valid but
above normal operational range - Moderately
severe level. The ECM has detected that fuel
pressure is higher than commanded pressure.
Possible reduced engine performance.
555
101
16
Crankcase pressure - Data valid but above
normal operational range - Moderately severe
level. The crankcase breather filter requires
maintenance.
None on performance.
556
101
0
Crankcase pressure - Data valid but above
normal operational range - Most severe level.
The crankcase breather filter requires
maintenance.
None on performance.
※
Some fault codes are not applied to this machine.
Summary of Contents for HL955
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