21 TROUBLESHOOTING 172
Faults Possible cause Action
Engine overheats Too little coolant in cooling system – Check the cooling system for leakage.
– Check the coolant level in the compensating
tank. ( p. 150)
Radiator fins very dirty – Clean radiator fins.
Foam formation in cooling system – Drain the coolant. ( p. 152)
– Fill/bleed the cooling system. ( p. 153)
Buckled or damaged radiator hose – Change the radiator hose.
Thermostat is faulty – Check the thermostat.
Fuse 4 blown – Change the fuses of individual power consumers.
( p. 135)
Defect in radiator fan system – Check the radiator fan system.
FI warning lamp (MIL) lights/flashes Defect in fuel injection system – Read out the fault memory using the KTM diag-
nostics tool.
N The idle indicator lamp does not
light up when the transmission is in
neutral
Gear position sensor not programmed – Read out the fault memory using the KTM diag-
nostics tool.
Engine dies during the trip Lack of fuel – Refuel. ( p. 67)
Fuse 1, 2 or 3 blown – Change the fuses of individual power consumers.
( p. 135)
The ABS warning lamp lights up ABS fuse is blown – Change the ABS fuses. ( p. 134)
Large difference in wheel speeds of the
front and rear wheels
– Stop the vehicle, switch off the ignition, and
start it again.
Malfunction in ABS – Read out the ABS fault memory using the KTM
diagnostics tool.
High oil consumption Engine vent hose bent – Route the vent hose without bends or change it if
necessary.