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 740 of 1632

TM 9-2320-366-20-2

2-1548

Change 1

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

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

NO

YES

POSSIBLE PROBLEMS

6.

Continuity Test or

STE/ICE-R Test #91

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.

Replace relay K12

(para 7-9).

Repair wire 2002 from relay K12

terminal 87 on PDP to connector J51

pin 1 (para 2-45) or replace WTEC II

dashboard cable assembly (para 7-10)

or WTEC III dashboard cable assembly

(para 7-11).

If continuity is not present,

wire 2002 is faulty.

If

continuity is present, relay K12

is faulty.

Is continuity present from

relay K12 terminal 87 to

connector J51 pin 1?

Faulty dashboard cable

assembly.

Faulty relay K12.