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 245 of 855

TM 9-2350-277-20-1

INSTRUMENT PANEL AND/OR TRANS CONTROLLER ILLUMINATION LIGHTS

MALFUNCTION—Continued

0038 00

2Y

1.

Move MASTER POWER switch to OFF.

2.

Install instrument panel illumination light and controller indicator

cover lenses and gaskets.

3.

Remove instrument panel for access (WP 0295 00).

4.

Remove harness 12349881 plug (1) from LIGHTING CONTROL

switch jack (2).

5.

Remove harness 12349813 circuit 40 plug (3) from harness

12349881 circuit 40 jack (4).

6.

Measure resistance between harness 12349881 LIGHTING

CONTROL switch plug (1), pin B (5), and circuit 40 jack (4) pin

(6).

7.

Does multimeter read 0 ohms?

YES

NO

2YN

1.

Faulty harness 12349881, circuit 40.

Beyond unit maintenance repair.

2.

Notify supervisor.

3Y

1.

Replace main light switch (WP 0283 00).

2.

Verify no faults found.

0038 00-2