J1939
SPN
J1939
FMI
Lamp
Fault
Code
J1939 SPN Description
Cummins Description
16
Amber
442
Battery potential / power
input 1
Battery 1 voltage – data valid but above normal
operating range – moderately severe level
17
Amber
3724
Battery potential / power
input 1
Battery 1 voltage – data valid but below normal
operating range – least severe level
168
18
Amber
441
Battery potential / power
input 1
Battery 1 voltage – data valid but below normal
operating range – moderately severe level
3
Amber
249
Ambient air temperature
Ambient air temperature sensor 1 circuit – voltage
above normal, or shorted to high source
4
Amber
256
Ambient air temperature
Ambient air temperature sensor 1 circuit – voltage
below normal, or shorted to low source
171
9
Amber
3531
Ambient air temperature
Ambient air temperature – abnormal update rate
0
Red
234
Engine speed
Engine crankshaft speed/position – data valid but
above normal operational range – most severe
level
2
Amber
689
Engine speed
Engine crankshaft speed/position – data erratic,
intermittent or incorrect
2
None
2321
Engine speed
Engine crankshaft speed/position – data erratic,
intermittent or incorrect
190
16
Amber
2468
Engine speed
Engine crankshaft speed/position – data valid
but above normal operating range – moderately
severe level
9
Amber
3328
Transmission output
shaft speed
Transmission output shaft speed – abnormal
update rate
16
Amber
349
Transmission output
shaft speed
Transmission output shaft speed – data valid
but above normal operating range – moderately
severe level
18
Amber
489
Transmission output
shaft speed
Transmission output shaft speed – data valid but
below normal operating range – moderately severe
level
191
19
Amber
3418
Transmission output
shaft speed
Transmission output shaft speed – received
network data in error
237
13
Amber
4517
Vehicle identi
fi
cation
number
Vehicle identi
fi
cation number – out of calibration
2
Amber
1866
Engine exhaust gas
recirculation 1 differential
pressure
Exhaust gas recirculation differential pressure –
data erratic, intermittent or incorrect
3
Amber
2273
Engine exhaust gas
recirculation 1 differential
pressure
Exhaust gas recirculation differential pressure
sensor circuit – voltage above normal, or shorted
to high source
411
4
Amber
2274
Engine exhaust gas
recirculation 1 differential
pressure
Exhaust gas recirculation differential pressure
sensor circuit – voltage below normal, or shorted
to low source
214053
443
Revision A
Summary of Contents for M1240
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