TM-9-2320-366-20-1
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-1 - Page 1392 of 1824
TM 9-2320-366-20-1
e69. TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE (CONT)
2-828
Change 1
KNOWN INFO
TEST OPTIONS
NO
TEST OPTIONS
KNOWN INFO
NO
YES
YES
WARNING
Read WARNING
on following page.
Continuity Test or
STE/ICE-R Test #91
REASON FOR QUESTION
Voltage Test or
STE/ICE-R Test #89
REASON FOR QUESTION
POSSIBLE PROBLEMS
3.
2.
POSSIBLE PROBLEMS
Go to step 6 of this fault.
CAUTION
Read CAUTION
on following page.
Faulty dashboard cable
assembly.
Faulty relay K27.
Faulty dashboard cable
assembly.
Faulty relay K27.
Faulty rear lights cable
assembly.
Faulty rear intervehicular
24 VDC (12 pin) cable.
Is 24 VDC present at
relay K27 terminal 30
on PDP?
Is continuity present from
connector J130 socket F
to relay K27 terminal 87?
If 24 VDC is not present,
wire 1959 is faulty.
Repair wire 1959 from K27 terminal 30 on PDP
to circuit breaker CB39 terminal 4 (para 2-45)
or replace WTEC II dashboard cable
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Towing vehicle blackout
stoplights OK.
Circuit breaker CB39 OK.
Trailer electrical system OK.
Towing vehicle blackout
stoplights OK.
Circuit breaker CB39 OK.
Trailer electrical system OK.
Rear lights cable assembly OK.
Rear intervehicular 24 VDC
(12 pin) cable OK.
This question eliminates
possible problems and
determines where
troubleshooting continues.
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