New Holland CX720 Repair Manual page 1444

NOTE: The output diagnostic screens may NOT be accessed while the engine is running, in order to prevent acci-
dental engagement of outputs, resulting in machine damage or personal safety concerns.
Relays and Solenoids
Relays and normal solenoids are driven by module outputs that simply switch 12 volts on or off, and are limited to
3 amps maximum current draw. Since these outputs are grounded locally, and the ground is not back through the
module, there is a limitation on the values that may actually be monitored.All relay and normal solenoid diagnostic
screens will default to a "Digital" screen, but in some cases, an additional "Status" screen is also available. Use the
arrow keys to select the desired screen.
On the "Digital" screen, an indication is given of the actual condition of the output, either "Off" or "On". While in this
screen, if the output is activated through normal means, this will be visible when the output condition changes.
The output may also be controlled directly from the diagnostic screen, allowing the circuit to be activated for testing
purposes. To directly control the output, press the "Enter" key; the switch icon on the bottom right of the screen will
change position as shown to indicate that the circuit is now activated.
NOTE: When the circuit is manually activated, the software control is automatically bypassed, and the circuit will no
longer be activated by normal means until the diagnostic screen is closed.
The "Status" screen, if available, provides some indication if the module detects an error on the circuit, typically either
a short to ground or open circuit. Select the "Status" screen by pressing the down arrow key to highlight "Status".
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