Diagnostics: System Diagnostics 71
DIAGNOSTICS
523076 .31 NCV offline - single •Go to Diagnostics -> Diagnostic Trouble Codes
-> NCV Errors -> NCV Heat Map and locate
the NCV(s) that are not green. Their numerical
locations are labeled referencing the forward
travel direction, from leftmost to rightmost
NCV along the boom. Note their location for
future reference and troubleshooting as
necessary.
•Go to Diagnostics -> Tests -> NCV
Communication Test. Displayed NCVs are
numbered on screen from left to right. These
are referenced from the left side of the
machine, facing the normal forward direction
of travel. If No CAN Error Detected is
displayed, that means that the test has found
no detectable communication errors. Left,
right, and tip-to-tip latency times will be
displayed. If an error occurs, note the “No
Communication After NCV” number, and the
“Communication Resumes At NCV” number.
The issue is likely between, and possibly
includes, these NCVs. Inspect NCVs on the
boom, wiring, connections, or fuses related to
the circuit between and including these NCVs.
If there is no communication after the #1 NCV,
there may be a power loss between the
battery connection and the NCV cable
connections, or a CAN communication
problem between the RCM - Sprayer RCM-S
ECU and the NCV cable connections. Inspect
wiring, fuses, and connections before the left
and right cable circuit branches. When only a
few NCVs are noted, inspect nearby NCVs,
connections, pins, and cabling for corrosion,
visible damage, or pinching between those
NCVs. In some instances, splices or wiring
may be damaged underneath cable
coverings. When large sections of NCVs are
not communicating, inspect those items
along with fuses and large electrical
connections. If intermittent power to the
NCVs is the cause of the issue, or if NCVs are
disconnected and re-connected during the
troubleshooting process, NCVs will appear
back online after repairing the system, but
DTC errors will still exist until the system
power is cycled off then back on.
• Cycle power to RCM-S ECU by going to
Diagnostics -> Tests -> Reboot Product
Controller.
• Replace NCV and Recalibrate NCV's by going
to Diagnostics -> Tests -> Calibrate NCVs
523077 .31 NCV offline - multiple
523078
.2 NCV invalid index single
.31 NCV not indexed single
523079
.2 NCV invalid index multiple
.31 NCV not indexed multiple
523082 .2 NCV CAN error limit - single
523083 .2 NCV CAN error limit multiple
523084 .31 NCV unexpected reset - single
523085 .31
NCV unexpected reset -
multiple
523138 .31 NCV bus shutdown - single
523139 .31 NCV bus shutdown - multiple
Code ID Description Recommended Actions
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