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ONECONNECT DIAGNOSTIC GUIDE
Step 4: Check for a voltage greater
than 10 volts.
• If yes, inspect the wiring in the
nosebox for defects.
• If no, continue to the next step.
Step 5: Check for voltage greater
than 10 volts.
• If yes, replace the cover
assembly.
• If no, inspect the wire between
the stud and the dual pole
positive for defects. If no
defects are noted, inspect the
dual pole socket, the cable
between the dual pole and the
tractor, and the nosebox for
defects.
• If all voltages are good,
continue to the next step.
Step 6: Place the jumper between the
posts.
If the lights come on:
• Check the wiring between
the nosebox and the external
switch (if installed) for defects.
• To check operation of the
external switch, proceed to the
next section.
• If the lights do not come on,
replace the cover assembly.