Yanmar 6LY3 series - Page 297

TROUBLESHOOTING
Troubleshooting by Symptom
12/05
6LY3 Service Manual
13-7
© 2007 Yanmar Marine International
Starting trouble
The starting motor does not
rotate and the engine cannot
start.
The battery switch is off. Turn on the battery switch. See Battery Cables on
page 12-3.
The battery voltage is low
(discharging battery).
Check the electrolyte level and
the specific gravity of battery.
See Checking the Electrolyte
Level on page 12-4.
Charge the battery or replace. See Charging the Battery on
page 12-5.
Check for a short. See Alternator Wiring Diagram
on page 11-8.
Battery will not charge. Check the wires between the
alternator and the battery.
See Alternator Wiring Diagram
on page 11-8.
Check the tension of V-belt. See Check the V-Belt Tension
on page 4-25.
Check the alternator. See Alternator on page 11-1.
Fuse burned out.
(IGN. PANEL: 10A)
Replace the fuse. See Fuse Chart on page 12-16
and Troubleshooting Fuses,
Relays and Harnesses on
page 13-21.
Fuse burned out.
(ECU: 20A)
Replace the fuse. See Fuse Chart on page 12-16
and Troubleshooting Fuses,
Relays and Harnesses on
page 13-21.
Fuse burned out.
(STARTER RELAY: 50A)
Replace the fuse. See Fuse Chart on page 12-16
and Troubleshooting Fuses,
Relays and Harnesses on
page 13-21.
Fuse burned out.
(IGN. 1st Station: 5A)
Replace the fuse. See Fuse Chart on page 12-16
and Troubleshooting Fuses,
Relays and Harnesses on
page 13-21.
Fuse burned out.
(IGN. 2nd Station: 5A)
Replace the fuse. See Fuse Chart on page 12-16
and Troubleshooting Fuses,
Relays and Harnesses on
page 13-21.
Trouble Symptom Causes Corrective Action Remarks