Labrie EXPERT Maintenance Manual page 330

320 Electrical System
1) Turn the ignition switch to the "run" position, activating the IFM display.
2) On the IFM display, select "Menu", then select "I/O Status".
3) Using the up/down arrows on the directional pad, scroll down and select "Others".
4) The real-time supply voltages of the control modules (Nodes) will be displayed:
If voltage(s) are below 12 volts, check the supply power to the module; if all voltages are below
12 volts, check the chassis battery voltage.
This helps diagnose error messages such as a module disconnected or functions of a module not
receiving their outputs. Once the supply voltages have been verified, further troubleshooting of
various outputs may then be investigated.