Yanmar 3TNV82A Troubleshooting Manual page 170

FAILURE DIAGNOSIS
Wiring Diagram
: Check points
Spare speed sensor (option)
*For the E-ECU Pin Layout, see [E-ECU Pin Layout Diagram] (P.1-134).
1-168
Key switch
"ON" or "START"
Speed Sensor
B
CRK+
A
CRK-
(Alternator)
B
IG
L
P
Method and Procedure of Failure Diagnosis
Battery
＋ −
Fuse
15A
Fuse
5A
Starter
B
S
E-ECU
E08
STARTSW
E19
NRPM
E18
NRPM-GND
Harness side coupler
(coupling face)
P01 B18 E10
E10
RENRPM
019610-00E
TNV DI Service Manual