TM-9-2350-238-20-1

HULL AND RELATED COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL

MAY 1994

TM-9-2350-238-20-1 - Page 380 of 1364

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 8.

Disconnect GND lead from driver's dome light. Place red probe in GND

lead. Ground black probe. Set MASTER switch ON. Set windshield

defroster switch ON. If multimeter indicates about 24 volts, windshield

defroster circuit is operating normally. If multimeter indicates no voltage,

repair GND lead between windshield defroster disconnect and driver's dome

light. Refer to page 2-371. Set MASTER switch OFF. Set windshield

defroster switch OFF. Connect lead.

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