TM-9-2350-277-20-1

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 234 of 855

TM 9-2350-277-20-1

BLACKOUT MARKER LIGHT(S) DON’T WORK—Continued

0034 00

CY

1.

Turn MASTER SWITCH OFF.

2.

Remove instrument panel for access (WP 0295 00).

3.

Remove harness 12349881 plug (2) from LIGHTING CONTROL

switch jack (1).

4.

Measure resistance between LIGHTING CONTROL switch jack

(2), pins F (3) and E (4).

5.

Does multimeter read 0 ohms?

YES

NO

CYN

1.

Replace LIGHTING CONTROL

switch (WP 0283 00).

2.

Verify no faults found.

C2Y

1.

Faulty harness 12340991 circuit 20/24. Beyond unit maintenance

repair.

2.

Notify supervisor.

0034 00-5/6 blank