TM-9-2320-366-20-2

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-2 - Page 736 of 1632

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

NO

YES

TM 9-2320-366-20-2

e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT)

3.

2-1544

Change 1

POSSIBLE PROBLEMS

Voltage Test or

STE/ICE-R Test #89

WARNING

Read WARNING

on following page.

If 12 VDC is not present,

wire 1673 is faulty.

Is 12 VDC present at

relay K12 terminal 86?

Circuit breakers CB71, CB72,

and CB74 OK.

Hazard lights illuminate.

Light bulb OK.

Auxiliary panel cable

assembly OK.

Relay K9 OK.

Diode D2B OK.

Worklights switch OK.

Faulty dashboard cable

assembly.

Faulty relay K12.

Repair wire 1673 from relay K12

terminal 86 on PDP to connector

J913 pin 1 (para 2-45) or replace

WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly (para 7-11).