Yanmar 6LY3 series Service Manual page 368

TROUBLESHOOTING
Figure 13-43
1. [Sensor 5V]
Checking sensor 5V output
2. [Wire harness]
Checking wire harness open/short.
(S-5V, Prs. sig, S-GND)
Checking sensor performance.
NOTICE: If the supply voltage exceeds 6V, the sensor will be damaged and should be replaced. This is true
for all the sensors on the same circuit.
NOTICE: Before replacing the wire harness, check all of the connectors and the ECU.
13-78
NG
OK
NG
OK
3. [Sensor]
NG
OK
Exchange
Exchange
sensor
ECU
© 2007 Yanmar Marine International
Troubleshooting by DTC Fault Codes
4. [Wire harness]
Checking sensor 5V wire harness
open / short.
2.
3. 3.
Exchange
Exchange
wire harness
Figure 13-43
NG
OK
Exchange
ECU
wire harness
0006148
6LY3 Service Manual