TM 5-2420-230-10
Operating Mode
Lighting Type
BO DRIVE
BO MARKER
OFF
STOP LIGHT
SER DRIVE
Driving Lights, Front
NO
NO
NO
NO
YES
Indicators, Front
NO
NO
NO
YES
YES
Parking, Front
NO
NO
NO
NO
YES
Tail, Rear
NO
NO
NO
NO
YES
Stop, Rear
NO
NO
NO
YES
YES
Indicators, Rear
NO
NO
NO
YES
YES
Reverse Lights
NO
NO
NO
YES
YES
Work Lights, Front*
NO
NO
NO
NO
YES
Work Lights, Rear*
NO
NO
NO
NO
YES
Markers, Front
NO
NO
NO
NO
YES
Markers, Rear
NO
NO
NO
NO
YES
Interior Cab Light
NO
NO
YES
YES
YES
Horn
YES
YES
YES
YES
YES
Warning Buzzer
YES
YES
YES
YES
YES
Reverse Buzzer
NO
NO
YES
YES
YES
Driving Lights (Blackout)
YES
NO
NO
NO
NO
Markers (Blackout)
YES
YES
NO
NO
NO
Taillight (Blackout)
YES
NO
NO
NO
NO
Stop Light (Blackout)
YES
YES
NO
NO
NO
Convoy Light
YES
YES
NO
NO
NO
Instrument Lights
NO
NO
YES
YES
YES
Flashing Beacon
NO
NO
YES
YES
YES
* The work lights are controlled by two switches mounted on the lower left of the main instrument panel.
NOTE
The instrument lights do not operate when the light switch is placed in either the BO DRIVE or BO
MARKER position. These lights only operate when the light switch is set to SER DRIVE.
All the instrument panel controls and indicators are illuminated for night driving. The level of illumination is controlled from
the panel light DIMMER switch mounted on the lower left of the main instrument panel. The switch has three positions:
OFF - No panel light
LOW - Dim panel light
HIGH - Bright panel light
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