Owner`s manual

4-47
Engine Diagnostics
The following is a list of field definitions contained on the
ENGINE DIAGNOSTICS screen:
• Diagnostic Message – displays the diagnostic message.
• Description – Most common SPNs and FMIs have text for
the description stored in the display. If there is no text, then
this SPN and FMI must be defined by referring to the engine
manufacturer, or the SAE J1939 standard.
• Corrective Action – suggested action for correction.
• SOURCE – what the source of the message is.
• SPN – “Suspect Parameter Number” - fault code.
If not translated into text by the display, see the engine
manufacturer’s literature for the definition of the SPN number.
• FMI – “Failure Mode Indicator” - fault code. The FMI is
defined by SAE J1939. If not translated into text, see the SAE
standard, or the engine manufacturer’s literature.
• Count – The number of times the event has been flagged.
Controls and Indicators
Soft Key Description
LEFT/RIGHT ARROWS – navigate through the fault list.
GET FAULTS – query the engine(s) ECU for feedback on
diagnostic codes that have been activated and stored in the
ECU for service needs.
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