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 220 of 855

TM 9-2350-277-20-1

BLACKOUT DRIVE LIGHT DOESN’T WORK—Continued

0030 00

5Y

1.

Measure resistance between harness 12349881 circuit 520 plug

(1) and lighting control switch plug (2) pin D (3).

2.

Does multimeter read 0 ohms?

YES

NO

5YN

1.

Install harness 12349881 circuit 19

plug on IR/BO selector switch jack.

2.

Install harness 12349881 plug on

light control switch jack.

3.

Repair circuit 520 (WP 0382 00).

4.

Verify no faults found.

6Y

1.

Install harness 12349881 circuit 520 plug on IR/BO selector

switch jack.

2.

Install harness 12349881 plug on light control switch jack.

3.

Repair circuit 19.

4.

Verify no faults found.

YES

0030 00-3/4 blank