SERVICE HEADLAMP, TAILLIGHT, AND STOPLIGHT CIRCUIT. (cont)

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Step 10. Set MASTER switch OFF. Disconnect connector from vehicular light switch.

Place red probe on pin F. Place black probe on pin M. If multimeter

indicates 0 ohms, go to step 11. If multimeter does not indicate 0 ohms,

replace vehicular light switch. Refer to page 2-566. Connect connector to

vehicular light switch.

Brake foot pedal is spring-loaded. Block tracks and release

parking brake before working on headlamp dimmer switch.

Make sure MASTER switch is OFF before repairing electrical

circuits. Failure to observe this warning could result in injury

to personnel.

Disconnect connector from headlamp dimmer switch. Place red probe in

Step 7.

socket G. Ground black probe. Set MASTER switch ON. If multimeter

indicates about 24 volts, replace headlamp dimmer switch. Refer to page

2-564. If multimeter indicates no voltage, repair lead 16 from vehicular light

switch. Refer to page 2-371. Set MASTER switch OFF. Connect

connector to headlamp dimmer switch.

2-212