TM-9-2330-334-13-P

FAMILY OF MEDIUM TACTICAL VEHICLES (FMTV) LOAD HANDLING SYSTEM TRAILER (LHST) M1147A1

TECHNICAL MANUAL; OPERATOR AND FIELD LEVEL MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)

DECEMBER 2013

CHANGE 1

TM-9-2330-334-13-P - Page 146 of 1184

TM 9-2330-334-13&P

LEFT STOPLIGHT DOES NOT ILLUMINATE-Continued

0024 00

ELECTRICAL SYSTEM TROUBLESHOOTING - Continued

Table 1.

Left Stoplight Does Not Illuminate - Continued.

Change 1

0024 00-4

INDICATION/CONDITION

DECISION (NO/YES)

PROCEDURAL STEPS

3.

Is 8-16 VDC present at

TL253?

No.

Replace module 4 (WP

0057 00).

1.

Set multimeter to VDC.

Yes.

Go to (Indication/Condition

4).

2.

Connect intervehicular cable

connector from voltage

converter box.

3.

Position main light switch to

STOP LIGHT on towing

vehicle and depress brake

pedal.

4.

Connect positive (+) probe

of multimeter to TL253.

5.

Connect negative (-) probe

of multimeter to a known

good ground and note

reading on multimeter.

6.

Position main light switch to

ALL OFF.