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Page Title:
M1089 AMBER WARNING LIGHT DOES NOT ILLUMINATE |
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 TM 9-2320-366-20-1
TM
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)
References
TM 9-4910-571-12&P
START
WARNING
KNOWN INFO
TEST OPTIONS
Read WARNING
1.
Circuit breaker OK.
Voltage Test or
on following page.
Is 12 vdc present on
Marker lights illuminate.
STE/ICE-R #89
POSSIBLE PROBLEMS
REASON FOR QUESTION
connector J44-B (left
Faulty warning light cable
This step eliminates
warning light) or J45-B
assembly.
possible problems and
(right warning light)?
Faulty M1089 amber
determines where
warning light assembly.
troubleshooting continues.
NO
Faulty M1089 warning
lights cable assembly.
Faulty dashboard cable
assembly.
YES
Go to step 4 of this fault.
Faulty warning light
switch.
Faulty relay K13.
KNOWN INFO
TEST OPTIONS
2.
Circuit breaker OK.
Continuity Test or
Is continuity present
Marker lights illuminate.
STE/ICE-R #91
POSSIBLE PROBLEMS
REASON FOR QUESTION
between connector J44-A
Faulty M1089 amber
If continuity is not present,
(left warning light) or
warning light assembly.
go to step 5 of this fault.
J45-A (right warning light)
Faulty warning light cable
If continuity is present,
and a known good ground?
assembly.
M1089 amber warning
Faulty M1089 warning
light assembly is faulty.
NO
lights cable assembly.
Faulty dashboard cable
assembly.
Faulty warning light
YES
Go to step 5 of this fault.
switch.
Faulty relay K13.
Replace M1089 amber warning
light assembly (para 22-2).
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