Indicator Light Check Circuit - Hitachi ZW180 Technical Manual

INDICATOR LIGHT CHECK CIRCUIT (KEY
SWITCH: ON)
•
When the key switch is turned to the ON position,
terminal B is connected to terminals ACC and M
inside the key switch.
•
Current from terminal M of the key switch flows
from fuse #8 of fuse box A to terminal 1-2 of the
monitor unit.
From Fuse #7 of
Fuse Box B
To Fuse #7 of
Fuse Box B
SYSTEM / Electrical System
Key Switch
Monitor Unit
1-2
Battery
Relay
Fusible
Link
•
The monitor unit checks the bulbs breakage of
warning lamp and indicator by lighting them and
also starts the liquid crystal display.
8
Battery
T2-4-4
Fuse Box A
T4GD-02-04-011