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Component Ident
ification
Load Center
F3 Radiator Fan Fuse
F4
Load Center Power Fuse
K1 Fuel Relay
K2
Starter Relay
K3
Glow Plug Relay
K4 Radiator Fan Relay
MV
Manual Valve Switch
LED
Related
Component
Color
ON-State
Description
D1
Fuel Shutoff
Solenoid (FS)
Green
Fuel shutoff
solenoid on the
engine is open.
D2
Starter (ST)
Red
Starter is
cranking.
D3
Glow Plugs
(GL)
Green
Glow plugs are
heating.
D4
Radiator F
an
(RF)
Green
Radiator fan is
on.
D10
A Coolant Valve
Red
A-side (red)
coolant valve is
open.
D12
B Coolant Valve
Blue
B-side
(blue)
coolan
tvalveis
open.
D14
Bypas
s Coolant
Valve
Green
Bypas
s coolant
valve
is open.
D23
Manual Valve
Switch (MV)
Red
Manu
al valve
swit
ch is in the
ON po
sition.
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