Winco DGC-500 - Manual (Page 33)

DGC-500 Functional Description 3-13
Figure 3-3. Alternate Mode Navigation
1. ENG STOP LAMP ON
2. WARNING LAMP ON
3. MALFUNC LAMP ON
4. PROTECT LAMP ON
5. NO LAMP IS ON
Only one lamp status will be displayed on the front panel—the highest priority one that is true. An example
of the lamp status screen is shown in Figure 3-4. BESTCOMS may also be used to view the status of all
lamps.
Figure 3-4. Lamp Status Screen
To be notified that a lamp status exists, the pre-alarm for active DTCs must be enabled through BESTCOMS.
When one or more active DTCs exist in the ECU, a lamp status indicating the severity of the combined DTCs
should exist. After the pre-alarm is annunciated (by LED indicator, horn, and/or dial-out), the operator will
know to check the lamp status, active system DTCs, and what relationship the DTCs have with the
parameters. To check the DTC/parameter relationship at the front panel, access the ECU Parameters menu
of the HMI. In BESTCOMS, hover the mouse pointer over the DTC to see its related parameter.
To use the HMI to view the list of active DTCs, press the Raise/Scroll pushbutton. The next screen to appear
will display the first DTC, the number of DTCs, the Suspect Parameter Number (SPN), the Failure Mode
Indicator (FMI) and the Occurrence Count (OC).