Turn Signal Circuit - Hitachi ZW180 Technical Manual

Operational principle, wheel loader
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TURN SIGNAL CIRCUIT

The battery power also flows to the flasher relay
from fuse #8 of fuse box B.
When the turn signal switch is turned to left (L),
terminal L of the turn signal switch is grounded
and the left turn signal relay is excited.
Left
Turn Signal
Monitor
Unit
1-19
1-20
Right
Turn Signal
Front Right
Turn Signal
Light
Front Left
Turn Signal
Light
SYSTEM / Electrical System
Turn Signal Switch
Left
Turn Signal Relay
Turn Signal Relay
Rear Right
Turn Signal Light
Rear Left
Turn Signal
Light
The power from the flasher relay enters the front
and rear left turn signal lights and terminal 1-19 of
the monitor unit through the left turn signal relay.
Consequently, the front and rear left turn signal
lights and the left turn signal indicators blink.
Right
Flasher
Relay
Battery Relay
Fusible
Link
T2-4-24
Key Switch
Fuse Box B
8
Battery
T4GD-02-04-005

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