Yanmar 6LY3 series - Section 12 Electrical and Ecu

6LY3 Service Manual
12-1
© 2007 Yanmar Marine International
6LY3 Service Manual
Section 12
ELECTRICAL
AND ECU
Page
Safety Precautions ........................................................................ 12-3
Battery Components and Functions .............................................. 12-3
Battery Capacity and Battery Cables....................................... 12-3
Inspecting the Battery.............................................................. 12-4
Charging the Battery................................................................ 12-5
Precautions for Battery Storage .............................................. 12-7
Wiring Diagram.............................................................................. 12-8
ECU Connector Pin Configuration........................................... 12-9
Sensor Locations................................................................... 12-10
Sensors for Oil Pressure and Boost Pressure....................... 12-12
Sensors for Water, Oil and Fuel Temperatures..................... 12-12
Air Heater Components and Functions ....................................... 12-13
Air Heater Operation.............................................................. 12-13
Fuse, Relay and Harness Components ...................................... 12-16
Fuse Chart............................................................................. 12-16
Digital Display........................................................................ 12-21
Rocker Switch Panel ............................................................. 12-23
Control Head (Shift and Throttle)........................................... 12-24