FRONT BLACK OUT LIGHT INOPERATIVE

TM 10-3930-638-24&P

2-24. LIGHT SYSTEMS TROUBLESHOOTING (cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. FRONT BLACK OUT LIGHT INOPERATIVE (cont)

Step 2.

Unscrew and remove cable connector from bottom of VEHICLE LIGHTS switch.

With main switch lever on VEHICLE LIGHTS switch in B.O. DRIVE position, connect ohmmeter

leads to pins D and F of VEHICLE LIGHTS switch.

a. If ohmmeter indicates more than 0.1 ohm, replace VEHICLE

LIGHTS switch (para 2-28b).

b. If ohmmeter indicates less than 0.1 ohm, check for open circuit

in wire between terminal D of cable connector and front

black out light.

3. BLACK OUT TAIL LIGHTS INOPERATIVE

NOTE

If one black out tail light operates normally, replace bulb in affected tail

light (para 2-30c). If tail light is still inoperative, check for open circuit in

wire between inoperative tail light and operating tail light.

Unscrew and remove cable connector from bottom of VEHICLE LIGHTS

switch.

Place main switch lever on VEHICLE LIGHTS switch in SER. DRIVE

position.

Connect ohmmeter leads to pins E and F of VEHICLE LIGHTS switch.

a. If ohmmeter indicates more than 0.1 ohm, replace VEHICLE

LIGHTS switch (para 2-28b).

b. If ohmmeter indicates less than 0.1 ohm, check for open circuit

in wire between terminal E of cable connector and black out

tail lights.