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 746 of 1632

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

TM 9-2320-366-20-2

POSSIBLE PROBLEMS

Continuity Test or

STE/ICE-R Test #91

11.

2-1554

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.

Diode D2B OK.

Worklights switch OK.

Relay K12 OK.

If continuity is not present,

wire 1565 is faulty.

If

continuity is present, relay K9

is faulty.

Repair wire 1565 from relay K9

terminal 87 on PDP to diode D2B

terminal 4 (para 2-45) or replace

WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly (para 7-11).

YES

NO

Faulty dashboard cable

assembly.

Faulty relay K9.

Is continuity present from

relay K9 terminal 87 to

diode D2B terminal 4?

Replace relay K9

(para 7-9).