Yanmar 3TNV82A Troubleshooting Manual page 196

FAILURE DIAGNOSIS
Wiring Diagram
: Check points
Rack Actuator Relay
Actuator side coupler
(coupling face)
E D C
Rack Actuator
Rack position sensor
BAT
RPS
G_S
*For the E-ECU Pin Layout, see [E-ECU Pin Layout Diagram] (P.1-134).
1-194
ECU
Main relay
B A
A
B
D
C
E
Method and Procedure of Failure Diagnosis
Battery ＋
Fuse
10A
Fuse
5A
E34
E48
Harness side coupler (coupling face)
E07
B17 E42 --
E33
E42
E43
E36
E28
TNV DI Service Manual
−
Fuse
15A
Key switch
"ON"
E-ECU
MAIN-RLY
VB
IGNSW
E36 E43 E28
RACK-RLY
RACKSOL
AVB
RPS
GND-A
017556-00E