TM-9-2350-261-20-1

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4

TM-9-2350-261-20-1 - Page 235 of 346

TM 9-2350-261-20-1

BLACKOUT MARKER LIGHT(S) AND/OR TAILLIGHT(S) DO NOT OPERATE — Continued

0034 00

2Y

1.

Locate failing light(s).

2.

Remove circuit 20 plug (1) (BO marker) and/or circuit 24 plug

(2) (BO taillight) from failing light jack.

3.

Measure voltage between plug pin and ground.

4.

Does multimeter read less than 17 volts?

2YN

1.

Replace faulty light bulb. For BO

marker light (WP 0258 00). For

left/right taillight (WP 0264 00).

2.

Verify no faults found.

3Y

1.

Check to see if one front BO marker light is not operating.

2.

Is one front BO marker light not operating?

3YN

1.

Repair rear main wiring harness

circuit 24 (WP 0312 00).

2.

Verify no faults found.

4Y

1.

Check to see if right BO marker light is out.

2.

Is right BO marker light out?

4YN

1.

Repair front main wiring harness

circuit 20 (WP 0312 00).

2.

Verify no faults found.

003400-2