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Page Title:
BLACKOUT STOPLIGHTS DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
19. BLACKOUT STOPLIGHTS DO NOT OPERATE (CONT).
2
WARNING
KNOWN INFO
TEST OPTIONS
Read WARNING on
Bulb OK.
Voltage test.
following page.
STE/ICE-R #89.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Is 24 vdc present at faulty
Connector P2 faulty.
Connector J2 faulty.
This question eliminates possible
blackout brake light socket?
Wire 9 faulty.
problems and determines where
Circuit breaker CB6 faulty.
troubleshooting continues.
Wire 1 faulty.
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 41 faulty.
Brake switch faulty.
Go to Step 3 of this
Wire 42 faulty.
NO
fault.
Wire 44 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
Go to Step 17 of
this fault.
3
KNOWN INFO
TEST OPTIONS
Bulb OK.
Voltage test.
Is 24 vdc present at starter
STE/ICE-R #89.
POSSIBLE PROBLEMS
motor solenoid where wire 9
REASON FOR QUESTION
Connector P2 faulty.
connects?
Connector J2 faulty.
If 24 vdc is not present, service or
Wire 9 faulty.
replace battery cable.
Circuit breaker CB6 faulty.
Wire 1 faulty.
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 41 faulty.
Brake switch faulty.
Service or replace
NO
Wire 42 faulty.
battery cable
Wire 44 faulty.
(Para 8-42).
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
2-346
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