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

11.

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 K9 terminal 87 to

Light bulb OK.

diode D2B terminal 4?

If continuity is not present,

Auxiliary panel cable

wire 1565 is faulty. If

assembly OK.

continuity is present, relay K9

Diode D2B OK.

is faulty.

Worklights switch OK.

Relay K12 OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty relay K9.

Repair wire 1565 from relay K9

terminal 87 on PDP to diode D2B

terminal 4 (para 2-45) or replace

YES

WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly (para 7-11).

Replace relay K9

(para 7-9).

2-1554

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