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 426 of 1205

TM 9-2320-387-24-l

INSTRUMENTS

KNOWN INFO

WIRE 27C OK

WIRE 27D OK

CIRCUIT BREAKER

1 OK

WIRE 400D OK

SWITCH OK

POSSIBLE

PROBLEMS

WIRE 57E

PCB BODY

CONNECTOR

DIAGNOSTIC

FLOWCHART

TEST OPTIONS

I

DISCONNECT THE PCB BODY

CONNECTOR. IS THERE

CONTINUITY

FROM WIRE 57E

AT THE HEATER MOTOR TO

SOCKET D OF THE PCB BODY

CONNECTOR HARNESS?

REPAIR 57E OR

REPLACE

HARNESS.

RETURN TO PS,

1. STVICE-R

TEST 91

Page 2-508)

2. MULTIMETER

REASON

FOR QUESTION

If there is continuity,

the wiring

is OK, and the PCB must be the

problem.

REPLACE THE PCB. RETURN TO

P5, PAGE 2-364.

I

2-372