20 TROUBLESHOOTING 233
Faults Possible cause Action
Engine cranks but doesn't start Plug connector of wiring harness oxi-
dized
– Clean plug connector and treat with contact
spray.
Fault in fuel injection system – Read out the trouble code memory using the
KTM diagnostics tool. x
Fuel pump control defective – Read out the trouble code memory using the
KTM diagnostics tool. x
Fuel quality insufficient – Add suitable fuel.
Engine has too little power Air filter very dirty –
Change the air filter. x
Fuel filter very dirty –
Change the fuel filter. x
Fault in fuel injection system – Read out the trouble code memory using the
KTM diagnostics tool. x
Engine overheats HIGH TEMP Too little coolant in cooling system –
Check the cooling system for leaks. x
– Check the coolant level. ( p. 212)
Cooling fins very dirty – Clean cooling fins.
Kinked or damaged radiator hose –
Change the coolant hose. x
Thermostat defective –
Check the thermostat. x
Fuse 4 blown – Change the fuses of individual power consumers.
( p. 199)
Defect in radiator fan system –
Check the radiator fan system. x
Air in cooling system –
Refill coolant/bleed the cooling system. x
EFI warning lamp (MIL) lights up /
flashes
Fault in fuel injection system – Read out the trouble code memory using the
KTM diagnostics tool. x
Engine dies during the journey Lack of fuel – Fill up with fuel. ( p. 116)
Fuse 1, 5 or 6 blown – Change the fuses of individual power consumers.
( p. 199)
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