KTM 390 Duke Series 2019 Owner's Manual page 221

Faults
High oil consumption
Headlight and position light are
not functioning
Turn signal, brake light, and
horn are not functional
Time is not displayed or not
correctly displayed
12 V battery discharged
The combination instrument
shows nothing on the display
Speedometer in combination
instrument not functioning
Possible cause
Engine oil too thin (low viscos-
ity)
Fuse 6 blown
Fuse 4 or 6 blown
Fuse 2 is blown
Ignition was not switched off
when vehicle was parked
The 12-V battery is not being
charged by the alternator
Fuse 2 is blown
Speedometer wiring harness is
damaged or plug-in connector
is oxidized
TROUBLESHOOTING 21
Action
–
Change the engine oil and oil filter,
clean the oil screens. (
–
Change the fuses of individual power
consumers. ( p. 179)
–
Change the fuses of individual power
consumers. ( p. 179)
–
Change the fuses of individual power
consumers. ( p. 179)
–
Charge the 12-V battery.
–
Check the charging voltage.
–
Check the open-circuit current.
–
Change the fuses of individual power
consumers. ( p. 179)
–
Check the wiring harness and plug-in
connector.
p. 203)
( p. 173)
219