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 301 of 926

TM 9-2320-283-20-1

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

57 ONE STOPLAMP NOT WORKING (Continued).

4

Disconnect circuit

36D-DG from 36C-DG at

connector, and go to

step 5.

5

Check for voltage at

12-volts dc

Connect circuit

Repair circuit

circuit 36C-DG terminal

nominal

36D-DG to

36C-DG (para

of connector

36C-DG, and go

3-127).

to step 6.

6

Remove terminal cover

at taillamp assembly

(para 3-96), and go to

step 7.

7

Check for voltage at

circuit 36F-DG terminal

12-volts dc

Install cover

Repair circuit

of taillamp assembly

nominal

(para 3-96),

36F-DG and/or

and go to step

36D-DG (para

8.

3-127).

NOTE

With positive lead on circuit 36F-DG, check ground with

negative lead when doing the following checks.

8

Remove lens at tail-

lamp assembly (para

3-96), and go to step

9.

9

Check for voltage at

12-volts dc

Replace bulb

Clean connec-

lamp socket

nominal

Install lens of

tions at

taillamp

socket

Install

assembly (para

lens of tail-

3-96)

lamp assembly

(para 3-96).

2-176