TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 327 of 926

TM 9-2320-283-20-1

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

66.

ONE BLACKOUT TAILLAMP NOT WORKING (Continued).

NOTE

With positive lead on circuit 23W-TN, check ground with

negative lead when doing the following checks.

3.

Remove bulb from black-

out taillamp (para

3-97), and go to step

4.

4.

Check for ground at

12-volts dc

Replace bulb

Clean socket

socket of blackout

nominal.

(para 3-97).

connector, and

taillamp.

install bulb

2-202