M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT)

TM 9-2320-366-20-2

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

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

on following page.

12.

Voltage Test or

Circuit breakers CB71, CB72,

STE/ICE-R Test #89

and CB74 OK.

Is 12 VDC present at

REASON FOR QUESTION

Hazard lights illuminate.

diode D2B terminal 3?

Light bulb OK.

If 12 VDC is not present, diode

Auxiliary panel cable

D2B is faulty. If 12 VDC is

assembly OK.

present, wire 1672 is faulty.

Relay K9 OK.

Worklights switch OK.

Relay K12 OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty diode D2B.

Replace diode D2B

YES

(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).

2-1556

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