Active Faults/Stored Faults
  Shows the number of active faults and which fault number is 
currently being displayed. To advance to the next fault, touch [NEXT] 
and [PREV] to go back to the previous fault. Touching [BACK] re-
turns to the Settings Menu.
• 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.
• Description Field – Most common SPN’s and FMI’s 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.
  NOTE: This field is only used with certain brands and models of 
engines.
Corrective Action (Suggested action for correction):
Get Faults 
Touching [Get Faults] queries the engine(s) ECU for feedback on 
diagnostic codes that have been activated and stored in the ECU for 
service needs.
3 EVENT DIAGNOSTICS
On the Diagnostics Menu, touch the 3 Event 
Diagnostics touch command to access the 
3 Event Diagnostics screen.