Troubleshooting - KTM 390 DUKE 2024 Owner's Manual

21 TROUBLESHOOTING

Faults
The engine does not turn when
the start button is pressed
Engine turns only if the clutch
lever is drawn
The engine turns but does not
start
Engine has too little power
Engine overheats
Malfunction indicator lamp
lights up yellow
Engine dies during the trip
The ABS warning lamp lights
up
High oil consumption
Headlight and position light are
not functioning
Turn signal, brake light, and
horn are not functional
108
Possible cause
Operating error
12-V battery discharged
Fuse 1, 3, 4, or 7 is blown
No ground connection present
on the starter motor
The vehicle is in gear
The vehicle is in gear and the
side stand is folded out
Operating error
Quick release coupling not
joined
Malfunction in the electronic
fuel injection
Air filter is very dirty
Fuel filter is very dirty
Malfunction in the electronic
fuel injection
Too little coolant in cooling sys-
tem
Radiator fins very dirty
Foam formation in cooling sys-
tem
Thermostat defective
Fuse 5 blown
Defect in radiator fan system
Malfunction in the electronic
fuel injection
Lack of fuel
Fuse 1, 3, 4, or 7 is blown
ABS fuse blown
Large difference in wheel
speeds of the front and rear
wheels
Malfunction in ABS
Engine vent hose bent
Engine oil level too high
Engine oil too thin (low viscosi-
ty)
Fuse 6 blown
Fuse 4 or 6 blown
Action
–
Carry out start procedure. (
–
Charge the 12-V battery.
–
Change the fuses of individual electri-
cal power consumers. (
–
Check the ground connection.
–
Shift the transmission into neutral.
–
Shift the transmission into neutral.
–
Carry out start procedure. (
–
Join the quick release coupling.
–
Read out the fault memory using the
KTM diagnostics tool.
–
Change the air filter.
–
Check the fuel pressure.
–
Read out the fault memory using the
KTM diagnostics tool.
–
Check the cooling system for leakage.
–
Check the coolant level. (
–
Clean the radiator fins.
–
Drain the coolant. ( p. 95)
–
Fill/bleed the cooling system.
( p. 96)
–
Check the thermostat.
–
Change the fuses of individual electri-
cal power consumers. (
–
Check the radiator fan system.
–
Read out the fault memory using the
KTM diagnostics tool.
–
Refuel. ( p. 60)
–
Change the fuses of individual electri-
cal power consumers. (
–
Change the ABS fuses. (
–
Stop the vehicle, switch off the igni-
tion, and start it again.
–
Read out the fault memory using the
KTM diagnostics tool.
–
Route the vent hose without bends or
change it if necessary.
–
Check the engine oil level. (
–
Change the engine oil and the oil filter,
clean the oil screens. (
–
Change the fuses of individual electri-
cal power consumers. (
–
Change the fuses of individual electri-
cal power consumers. (
p. 53)
( p. 84)
p. 88)
p. 53)
p. 94)
p. 88)
p. 88)
p. 87)
p. 101)
p. 101)
p. 88)
p. 88)