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Page Title:
BACKUP LIGHT DOES NOT ILLUMINATE (CONT) |
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 TM 9-2320-366-20-1
e55. BACKUP LIGHT DOES NOT ILLUMINATE (CONT)
KNOWN INFO
TEST OPTIONS
4.
Visual Inspection
Circuit breaker CB70 OK.
REASON FOR QUESTION
Circuit breaker CB73 OK.
Is vehicle equipped with
Both turn signals illuminate.
This question helps
WTEC II transmission
Engine starts.
eliminate possible
controls?
Transmission reverse (R)
problems and determines
range OK.
where troubleshooting
Backup light lamps OK.
continues.
Backup light assembly OK.
POSSIBLE PROBLEMS
NO
Faulty dashboard cable
assembly.
Faulty WTEC II cab
transmission harness.
Faulty rear lights cable
YES
Go to step 12 of this fault.
assembly.
Faulty REVERSE
WARNING relay in WTEC
II VIM.
Faulty WTEC II
transmission ECU
pushbutton shift selector.
Faulty WTEC III relay K25.
Faulty WTEC III
transmission ECU.
2-676
Change 1
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