TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 362 of 1205

TM 9-2320-387-24-l

DIAGNOSTIC FLOWCHART

I

KNOWN INFO

r

OPTIONS

DOES THE BRAKE WARNING

LAMP OPERATE PROPERLY?

WATT-TO-START

LAMP OK

INSTRUMENTS

SENDING

UNITS

REASON

FOR QUESnON

If the brake warning lamp comes

on at any time, then the circuit is

being powered.

KNOWN INFO

OPflONS

VISUAL

BRAKE LAMP OK

DOES THE VOLTMETER WORK?

REASON

FOR QUESnON

If the voltmeter works then the

power to the instruments

is OK.

POSSIBLE

PROBLEMS

INSTRUMENTS

WIRING

SENDING

UNITS

6

1

TEST OPnONS

KNOWN INFO

VOLTMETER

OK

VISUAL

TURN ROTARY SWITCH TO OFF

POSITON. DISCONNECT THE

GLOW PLUG CONTROLLER. WITH

THE ROTARY SWITCH IN THE RUN

POSITION, DOES THE

WINDSHIELD WIPER WORK?

TURN ROTARY SWITCH TO OFF

POSITION. RECONNECT THE

GLOW PLUG CONTROLLER.

REASON

FOR QUESnON

If the windshield wiper works,

then the power to the wiper is

OK.

POSSIBLE

PROBLEMS

INSTRUMENTS

WIRING

SENDING

UNITS

2-308