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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)
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
16.
Continuity Test or
Circuit breaker CB70 OK.
STE/ICE-R Test #91
Circuit breaker CB73 OK.
Is continuity present from
REASON FOR QUESTION
Both turn signals illuminate.
WTEC III relay K25
If continuity is not present,
Engine starts.
terminal 87 to connector
wire 490 is faulty.
Transmission reverse (R)
J51 pin 2?
range OK.
Backup light lamps OK.
Backup light assembly OK.
WTEC III transmission controls.
POSSIBLE PROBLEMS
Faulty WTEC III relay K25.
NO
Faulty WTEC III dashboard
cable assembly.
Faulty rear lights cable
assembly.
Repair wire 490 from WTEC III relay
Faulty WTEC III
K25 terminal 87 to connector J51 pin 2
YES
transmission ECU.
(para 2-45) or replace WTEC III dashboard
cable assembly (para 7-11).
2-700
Change 1
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