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 748 of 1632

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

NO

YES

TM 9-2320-366-20-2

POSSIBLE PROBLEMS

Voltage Test or

STE/ICE-R Test #89

WARNING

Read WARNING

on following page.

12.

2-1556

Change 1

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

Circuit breakers CB71, CB72,

and CB74 OK.

Hazard lights illuminate.

Light bulb OK.

Auxiliary panel cable

assembly OK.

Relay K9 OK.

Worklights switch OK.

Relay K12 OK.

Replace diode D2B

(para 7-9).

Repair wire 1672 from diode D2B

terminal 3 on PDP to connector P913

socket 3 (para 2-45) or replace WTEC II

dashboard cable assembly (para 7-10)

or WTEC III dashboard cable assembly

(para 7-11).

Faulty dashboard cable

assembly.

Faulty diode D2B.

Is 12 VDC present at

diode D2B terminal 3?

If 12 VDC is not present, diode

D2B is faulty.

If 12 VDC is

present, wire 1672 is faulty.