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Alarm Codes
166
529
Check Fuel Pump Circuit
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
530
Low Pressure Differential
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
531
Check Economizer Pressure
Sensor
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
538
Engine J1939 CAN Datalink
Degraded
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
539
Engine J1939 CAN Datalink
Failed
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
599
Engine Service Tool Connected
Maintenance information only. Report alarm at end of the
day.
X
600
Check Crankshaft Speed Sensor Report alarm at end of the day.
X
Table of Alarm Codes
NOTE: Not all alarm codes are available with all microprocessor controllers or all revisions of software.
Code Description
Corrective Action
Level Of
Action
Ok
T
o
Run
Che
c
k
Shut
Down