TM 5-3805-291-10
Messenger Reference Guide
SYSTEM INFO
This menu allows the operator to view information such as ECM part number, S/W part number, S/W release date,
S/W description, location code, and serial number for the various systems and components on the machine. The
following diagram describes the System Info menu structure:
Service: System Info Menu Diagram
TATTLETALE
This menu allows the operator to view extreme recorded values of critical operating parameters and system
information. When this feature is accessed, both Messenger and the instrument cluster will display these values.
The operator can request a full tattletale readout, during which all the indicators that have been activated during the
session will light, all the gauges will be set to the maximum value (minimum for the fuel gauge) encountered during
operation, and the maximum ground speed will be displayed on the LCD. The operator can also step through the
tattletale value of each gauge, during which all of the inactive gauges will be set to the minimum value.
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