J1939
SPN
J1939
FMI
Lamp
Fault
Code
J1939 SPN Description
Cummins Description
0
Red
3229
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature – data
valid but above normal operational range – most
severe level
2
Amber
3144
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature sensor –
data erratic, intermittent or incorrect
3
Amber
3142
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature sensor
circuit – voltage above normal, or shorted to high
source
4
Amber
3143
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature sensor
circuit – voltage below normal, or shorted to low
source
15
None
3164
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature – data
valid but above normal operating range – least
severe
4360
16
Red
3231
Aftertreatment 1 SCR
catalyst intake gas
temperature
Aftertreatment 1 SCR intake temperature –
data valid but above normal operating range –
moderately severe level
0
Red
3165
Aftertreatment 1 SCR
catalyst outlet gas
temperature
Aftertreatment 1 SCR outlet temperature – data
valid but above normal operational range – most
severe
2
Amber
3148
Aftertreatment 1 SCR
catalyst outlet gas
temperature
Aftertreatment 1 SCR outlet temperature sensor –
data erratic, intermittent or incorrect
3
Amber
3146
Aftertreatment 1 SCR
catalyst outlet gas
temperature
Aftertreatment 1 SCR outlet temperature sensor
circuit – voltage above normal, or shorted to high
source
4
Amber
3147
Aftertreatment 1 SCR
catalyst outlet gas
temperature
Aftertreatment 1 SCR outlet temperature sensor
circuit – voltage below normal, or shorted to low
source
4363
16
Red
3235
Aftertreatment 1 SCR
catalyst outlet gas
temperature
Aftertreatment 1 SCR outlet temperature –
data valid but above normal operating range –v
moderately severe level
4364
18
Amber
3582
Aftertreatment 1 SCR
conversion ef
fi
ciency
Aftertreatment SCR catalyst conversion ef
fi
ciency
– data valid but below normal operating range –
moderately severe level
3
Amber
3577
Aftertreatment 1 diesel
exhaust
fl
uid return valve
Aftertreatment diesel exhaust
fl
uid return valve –
voltage above normal, or shorted to high source
4
Amber
3578
Aftertreatment 1 diesel
exhaust
fl
uid return valve
Aftertreatment diesel exhaust
fl
uid return valve –
voltage below normal, or shorted to low source
4376
7
Amber
4157
Aftertreatment 1 diesel
exhaust
fl
uid return valve
Aftertreatment diesel exhaust
fl
uid return valve –
mechanical system not responding or out of adjust
214053
458
Revision A
Summary of Contents for M1240
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