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 288 of 1364

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Step 1.

Set MASTER switch OFF. Set headlamp dimmer switch for high beam

operation. Disconnect connector from headlamp dimmer switch. Place red

probe on pin B. Place black probe on pin C. If multimeter indicates 0

ohms, repair lead 514 between headlamp line disconnect and headlamp

dimmer switch. Refer to page 2-371. If multimeter indicates infinity, replace

headlamp dimmer switch. Refer to page 2-584. Connect connector to

headlamp dimmer switch.

Step 2.

Set MASTER switch OFF. Set headlamp dimmer switch for low beam

operation. Disconnect connector from headlamp dimmer switch. Place red

probe on pin A. place black probe on pin C. If multimeter indicates 0

ohms, repair lead 515 between headlamp line disconnect and headlamp

dimmer switch. Refer to page 2-371. If multimeter indicates infinity, replace

headlamp dimmer switch. Refer to page 2-584. Connect connector to

headlamp dimmer switch.

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