Yanmar BY Series Service Manual page 215

Function Description - Engine Management System
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Connector X1 Pin Assignments
Connector Pin Name
X1 A KL31
X1 B
KL30
X1 C KL50
X1 D KL15
X1 E K-Line
X1 F Error Indicator
X1 G Instrument
Power
X1 H Warning
Indicator
X1 J GEAR
X1 K FWG2
X1 L FWG1 +5V
X1 M FWG1 GND
X1 N FWG1
X1 O FWG2 +5V
X1 P FWG2 GND
X1 Q
X1 R CAN+
X1 S CAN_H
X1 T CAN_L
X1 U CAN-
X1 V Oil Pressure
Gauge
X1 W Water-in-Fuel
Sensor
X1 X
BY Service Manual
Assignment
Battery Ground Terminal
Battery Positive Terminal
Start Signal from Key Switch
Ignition Power Input
Diagnostic Serial I / O
Check Engine Indicator
Fused Battery Power
Switch to Ground
Throttle Position Second Channel
Throttle Supply f. Main Channel
Throttle Return f. Main Channel
Throttle Position Main Channel
Throttle Supply f. Second Channel
Throttle Return f. Second Channel
Oil Pressure Switch
CAN Power Supply
CAN High
CAN Low
Shield
Resistive Oil Sensor to Ground
Ground Signal if Water is in Fuel
Not used
© 2009 Yanmar Marine International
ELECTRICAL AND ECU
Detail
Common ground
Common power supply for engine
controller, injection system, and fuel pump
Input signal to engine controller
Input signal to controller
Input signal for CAN hub
Power for accessories
Start-in-gear protection
Analog throttle safety channel
Analog throttle main channel
For Classic System
Delayed power-off; diode
EDC data line
Not terminated
Input signal for CAN hub
Input signal for CAN hub
Max
Current
20 A
10 A
1 A
1 A
0.1 A
0.5 A
5 A
0.5 A
50 mA
5 mA
5 mA
5 mA
5 mA
5 mA
5 mA
3 A
50 mA
50 mA
0.5 A
0.1 A
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