TM 9-2320-392-10-1
M1083A1 SERIES THEORY OF OPERATION - Continued 0003 00
ELECTRICAL SYSTEM Continued
Main Light Switch (Vehicle S/N 11,438 to 18,549). The main light switch is the only
switch that is active even when the master power switch is off.
1.
Positioning the main selector lever to SER DRIVE causes the headlights, taillights,
marker lights, and clearance lights to illuminate; stoplights will illuminate when the
ignition switch is turned on and brake pedal is depressed.
2.
Positioning the main selector lever to STOP LIGHT extinguishes all vehicle lights but
allows stoplights to illuminate when brake pedal is depressed.
0003 00-22
