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 418 of 1205

TM

9-2320-387-24-l

INSTRUMENTS

CIRCUIT

DIAGNOSTIC

FLOWCHART

-

KNOWN INFO

WIRE 27C OK

WIRE 27D OK

CIRCUIT BREAKER

1 OK

WIRE 400D OK

SWITCHOK

POSSIBLE

PROBLEMS

WIRING

MOTOR

PCB

IS THERE CONTINUITY

FROM

WIRE 57E AT THE HEATER FAN

MOTOR-TO-BODY

GROUND?

1. STEXE-R

TEST 91

(Page 2-508)

2. MULTlMElER

REASON

FOR OUESTION

This wire provides the motor’s

connection to ground.

I

P5

I

I

IF THE PROBLEM CONTINUES,

REPLACE THE HEATER MOTOR.

RETURN TO THE INSTRUMENTS

TEST, PAGE 2-305.

2-364