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Page Title:
M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE |
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 TM 9-2320-366-20-2
INITIAL SETUP
Equipment Condition
Tools and Special Tools
Engine shut down (TM 9-2320-366-10-1).
Tool Kit, Genl Mech (Item 46, Appendix C)
STE/ICE-R (Item 41, Appendix C)
Personnel Required
Multimeter, Digital (Item 22, Appendix C)
(2)
Wrench, Torque, 0-200 lb-in (Item 59, Appendix C)
Material/Parts
References
Wire, Elect, 50 ft (Item 71, Appendix D)
TM 9-4910-571-12&P
NOTE
Perform Electrical System Troubleshooting
e1. Circuit Breaker Does Not Operate on
circuit breakers CB71, CB72, and CB74
prior to beginning this task.
START
WARNING
CAUTION
Read WARNING and
CAUTION on
KNOWN INFO
TEST OPTIONS
following page.
1.
Voltage Test or
Circuit breakers CB71, CB72,
STE/ICE-R Test #89
and CB74 OK.
REASON FOR QUESTION
Hazard lights illuminate.
Is 12 VDC present at
Light bulb OK.
connector P905 socket 5?
This question eliminates
POSSIBLE PROBLEMS
possible faults and
determines where
Faulty worklights switch.
troubleshooting continues.
Faulty dashboard cable
assembly.
Faulty relay K12.
Faulty auxiliary panel cable
assembly.
Faulty diode D2B.
NO
Faulty relay K9.
YES
Go to step 7 of this fault.
Change 1
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