214603 464 Revision A
8.4 Engine Error Codes
The following example explains the segments of an error code:
If the cab display module (CDM) displays the Error Code 629S 12F 28C
629S : S represents the J1939 SPN column. Locate code 629 in that column.
12F : F represents the FMI column. Locate code 12 in that column.
28C : C represents the occurrences (count); 28 is the quantity.
J1939 SPN description : Controller #1. The Cummins description of this is engine control module critical internal
failure — Bad intelligent device or component.
The Cummins Dealer will request the fault code that corresponds with the number that you have located in the
J1939 SPN column.
Cummins
Fault
Code
J1939
SPN
J1939
FMI
Lamp
J1939 SPN
Description
Cummins Description
55
719 22 3 Amber
Crankcase pressure
Extended crankcase blow-by pressure
circuit — voltage above normal, or shorted
to high source
729 22 4 Amber
Crankcase pressure
Extended crankcase blow-by pressure
circuit — voltage below normal, or shorted to
low source
2114 52 0
Red
Coolant temperature Coolant temperature 2 — data valid but
above normal operational range — most
severe level
2111 52 3 Amber
Coolant temperature Coolant temperature 2 sensor circuit —
voltage above normal, or shorted to high
source
2112 52 4 Amber
Coolant temperature Coolant temperature 2 sensor circuit —
voltage below normal, or shorted to low
source
2113 52 16
Amber
Coolant temperature Coolant temperature 2 — data valid but
above normal operational range —
moderately severe level
241 84 2 Amber Wheel-based vehicle
speed
Vehicle speed sensor circuit— data erratic,
intermittent, or incorrect
242 84 10 Amber Wheel-based vehicle
speed
Vehicle speed sensor circuit tampering has
been detected — abnormal rate of change
148 91 0
Red Accelerator pedal
position
Accelerator pedal or lever position sensor
circuit — abnormal frequency, pulse width,
or period
147 91 1
Red Accelerator pedal
position
Accelerator pedal or lever position sensor
circuit — abnormal frequency, pulse width,
or period
REFERENCE
55. The descriptions of Cummins J1939 SPN codes are subject to change at their discretion.
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