REFERENCE
Fault
Code
J1939
SPN
J1939
FMI
Lamp
Color
J1939 SPN
Description Cummins Description
45
428 97 3 Amber Water in Fuel
Indicator
Water in Fuel S
ensor Circuit - Voltage Above
Normal, or Sho
rted to High Source
429 97 4 Amber
Water in Fuel
Indicator
Water in Fuel Sensor Circuit - Voltage Below
Normal, or Shorted to Low Source
431 558 2 Amber Accelerato
r Pedal
Low Idle Swi
tch
Accelerator Pedal or Lever Idle Validation Circuit -
Data Erratic, Intermittent, o r Incorrect
432 558 13 Red Accelerator Pedal
Low Idle Switch
Accelerat
or Ped al or Lever Idle Validation Circuit -
OutofCali
bration
435 100 2 Amber
Engine Oil Pressure Oil P re ssu re Sensor Circuit - Data Erra tic,
Intermit tent, or Incorrect
441 168 18 Amber
Electrical Potential
(Voltage)
Battery #1 Volt age L ow - D ata Valid but Below
Normal Operational Range – Moderately Severe
Level
442 168 16 Amber
Electrical Potential
(Voltage)
Batter
y #1 Voltage High - Data Valid but Above
Normal
Operational Range – Moderately S evere
Level
449 157 0 Red
Injector Metering
Rail 1 Pressure
Fuel Pressure High - Data Valid but Above Normal
Operational Range – Moderately Severe Level
451 157 3 Amber
Injector Metering
Rail 1 Pressure
Injec
torMeteringRail#1PressureSensorCircuit-
Volta
geAboveNormal,orShortedtoHighSource
452 157 4 Amber
Injector Metering
Rail 1 Pressure
Injector Metering Rail #1 Pressure Sensor Circuit -
Voltage Below Normal, or Shorted to Low Source
488 105 16 Amber
Intake Manifold
Intake Manifold 1 Temperature - Data Valid but
Above Normal Operational Range - Moderately
Severe Level
489 191 18 Amber
Transmission
Output Shaft Speed
Tr
ansmission Output Shaft Speed - Data Valid but
Be
low Normal Operational Range - Moderately
Se
vere Level
497 1377 2 Amber
Switch Circuit Multiple Unit Synchronization Switch Circuit - Data
Erratic, Intermittent, or Incorrect
5
23
6
11
2A
mber
System Diagnostic
code # 1
OEM Intermediate (PTO) Speed switch Validation
- Data Erratic, Intermittent, or Incorrect
527 702 3 Amber
Circuit - Voltage Auxiliary Input/Outpu t 2 Circuit - Vo lta ge Above
Normal, or Shorted to High Source
528 93 2 Amber
Switch - D ata Auxiliary Alternate Torq u e Validation S witch - Data
Erratic, Intermittent, or Incorrect
529 703 3 Amber
Circuit - Voltage Auxiliary Input/Outpu t 3 Circuit - Vo lta ge Above
Normal, or Shorted to High Source
546 94 3 Amber Fuel Delivery
Pressure
Fuel Delivery Pressure Sensor Circuit - Voltage
Above Normal, or Shorted to High Source
547 94 4 Amber Fuel Delivery
Pressure
Fuel Delivery Pressure Sensor Circuit - Voltage
Below Normal, or Shorted to Low Source
147649
4
74
Revision A
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