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Page Title:
TRAILER RIGHT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT) |
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 TM 9-2320-366-20-1
e66. TRAILER RIGHT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT)
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
2.
Continuity Test or
Towing vehicle right stop/turn
STE/ICE-R Test #91
light OK.
Is continuity present from
Circuit breaker CB44 OK.
REASON FOR QUESTION
connector J130 socket J
Trailer electrical system OK.
This question eliminates
to relay K31 terminal 87?
POSSIBLE PROBLEMS
possible problems and
determines where
Faulty dashboard cable
troubleshooting continues.
assembly.
Faulty relay K31.
Faulty rear lights cable
assembly.
NO
Faulty rear intervehicular
24 VDC (12 pin) cable.
YES
Go to step 6 of this fault.
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
3.
Voltage Test or
Towing vehicle right stop/turn
STE/ICE-R Test #89
light OK.
Is 24 VDC present at
REASON FOR QUESTION
Circuit breaker CB44 OK.
relay K31 terminal 30
Trailer electrical system OK.
If 24 VDC is not present,
on PDP?
Rear lights cable assembly OK.
wire 1956 is faulty.
Rear intervehicular 24 VDC
(12 pin) cable OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
NO
assembly.
Faulty relay K31.
Repair wire 1956 from K31 terminal 30 on PDP to
circuit breaker CB44 terminal 6 (para 2-45) or
YES
replace WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable assembly
(para 7-11).
2-798
Change 1
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