M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-2

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

KNOWN INFO

TEST OPTIONS

Continuity Test or

Circuit breakers CB71, CB72,

STE/ICE-R Test #91

and CB74 OK.

Is continuity present from

REASON FOR QUESTION

Hazard lights illuminate.

relay K12 terminal 87 to

Light bulb OK.

connector J51 pin 1?

If continuity is not present,

Auxiliary panel cable

wire 2002 is faulty. If

assembly OK.

continuity is present, relay K12

Relay K9 OK.

is faulty.

Diode D2B OK.

Worklights switch OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty relay K12.

Repair wire 2002 from relay K12

terminal 87 on PDP to connector J51

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

YES

dashboard cable assembly (para 7-10)

or WTEC III dashboard cable assembly

(para 7-11).

Replace relay K12

(para 7-9).

2-1548

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