®
750 Control Panel Operation and Troubleshooting
463-3000-08 revised Sept 16, 2013
37
ECU
Engine Control Unit; electronic device responsible for controlling and monitoring engine
operation
ECM
Engine Control Module; an alternate name for the ECU
FMI
Failure Mode Identifier; defines the type of failure detected in the subsystem identified by
the SPN
GPS
Global Positioning System; a system of satellites and receiving devices used to compute
positions on the earth, used in navigation
J1939
SAE engine data protocol using CAN 2.0B
LCD
Liquid Crystal Display; a display technology that uses electric current to align crystals in a
special liquid. When current is applied the crystals change their orientation creating a
darker area.
NMEA
National Marine Electronics Association, serial communications protocol for marine use
RS-232
Standard electrical interface for serial communications
RS-485
Standard differential electrical interface for serial communications
SAE
Society of Automotive Engineers; professional association of transportation industry
engineers that sets most auto-industry standards for the testing, measuring, and designing
of automobiles and their components
Soft buttons
Push buttons whose function changes according to use
SPN
Suspect Parameter Number; a number used to identify a particular element, component or
parameter associated with an ECU
Note
The messages, icons and error codes displayed conform to J1939 standards wherever possible.
A copy of the relevant standards documents may be accessed and purchased at:
http://www.sae.org/standardsdev/groundvehicle/j1939a.htm