Troubleshooting: NCV Offline troubleshooting 91
TROUBLESHOOTING
NCV CAN ERROR LIMIT
This error is encountered when CAN communication is poor.
If many NCVs are affected, the problem may be with intermittent connections at 19-pin connectors, corrosion, or
damage to splices or wiring harnesses where several circuits come together which would affect more than one
NCV.
If only a few NCVs are affected, the issue is likely with a single NCV, NCV connection, or section of wiring in
between NCVs.
NCV ERRORS AND NCV INFORMATION MENU
Select the NCV Errors button to view the NCV Information menu where other active errors for selected NCVs may
be viewed.
FIGURE 5. NCV Information Heat Map
In the NCV Errors menu, select any section or specific NCVs to inspect. The drop down menu allows the operator
to select the following information displays:
•NCV Readings
• NCV Settings
NOTE: NCV Settings is only available if HD Individual Nozzle Control is unlocked.
•NCV Errors
•NCV Heat Map
•Section Heat Map
Heat Map. The Heat Map selections will show you if there are any active errors for specific NCVs or sections.
Green NCV buttons represent no error for that NCV.
Yellow or Red NCV buttons represent an error.
Touch on the NCV button of interest to see NCV readings for that specific NCV. In some cases, several red buttons
may precede a yellow NCV. In that case, the red NCVs are likely not communicating with the system, and the first
yellow NCV is the first NCV recognized by the system. This condition may be due to an issue between the last red
and first yellow NCV, such as an NCV failure, wiring issue, or fuse issue affecting the red section of NCVs.
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