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■ Starter motor does not crank the engine
•Engine stop switch is not in the "ON" position
(Switch is pressed)
•Weak battery or battery connections are loose
or corroded
•Ignition key switch failure
•Wiring or electrical connection fault
■ Engine cranks but does not start
•Weak battery or bad starter motor
•No fuel
•ECU not functioning
•Incorrect starting procedure
•Faulty fuel filter or electric fuel pump
•Faulty fuse
■ Engine starts with difficulty or starts and stalls
•Low fuel pressure in fuel rail
•Leakage in high pressure fuel circuit
•Faulty fuse
•No rail pressure sensor signal
•Oil level too high or too low
•ECU program error or hardware fault
■ Engine idle is rough
•No rail pressure sensor signal
•Wiring harness open or poor connection
•Bad fuel quality or water in fuel
•Clogged fuel filter / air filter
INSTALLATION & OPERATION MANUAL
H380 Series
CHAPTER 12
TROUBLESHOOTING GUIDE
Possible Causes
Possible Causes
Possible Causes
Possible Causes
•Engine is not shifted to neutral position
•Starter motor solenoid or slave solenoid failure
•Defective EOI fuse (3A)
•Defective ECU
•Low fuel pressure
•Low compression pressure
•Crank position sensor not functioning
•Fuel is not reaching the engine
•Bad fuel quality or water in fuel
•Faulty injector
•Faulty alternator or voltage regulator
•No engine coolant temperature sensor signal
•Low battery voltage
•Low compression pressure
•Clogged fuel filter
•Low compression pressure
•Faulty high pressure fuel pump
•Faulty injector
•Carbon deposit on the injector
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