TM 9-2320-260-20
1-20. ELECTRICAL SYSTEMS OPERATION (Contd)
g. Lighting System Operation.
The lighting system is identical for all models covered in this manual and consists of the following
major components and circuits:
A SERVICE HEADLIGHT Receives power from light switch through circuits 17 and 18 for
vehicle night operation.
B FRONT COMPOSITE LIGHT Receives power from turn signal control through circuits 460
and 461 to indicate turning direction.
C PANEL LIGHTS - Receive power from light switch through circuit 40 to illuminate instrument
panel.
D REAR COMPOSITE LIGHT - Receives power from light switch through circuits 21,23, and 24
to indicate turning direction.
E LIGHT SWITCH - Directs power to vehicle and accessory lights.
F HIGH BEAM INDICATOR LIGHT - Receives power from high beam switch through circuit 17
to indicate headlights being switched from low to high.
G HIGH BEAM SWITCH - Receives power from light switch through circuit 16 to switch
headlights from low to high.
BLACKOUT HEADLIGHT - Receives power from light switch through circuit 19 for vehicle
blackout operations.
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