TM-9-2320-366-20-2
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-2 - Page 738 of 1632
TM 9-2320-366-20-2
e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT)
2-1546
Change 1
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
Voltage Test or
STE/ICE-R Test #89
Continuity Test or
STE/ICE-R Test #91
5.
4.
WARNING
Read WARNING
on following page.
Circuit breakers CB71, CB72,
and CB74 OK.
Hazard lights illuminate.
Light bulb OK.
Auxiliary panel cable
assembly OK.
Relay K9 OK.
Diode D2B OK.
Worklights switch OK.
Circuit breakers CB71, CB72,
and CB74 OK.
Hazard lights illuminate.
Light bulb OK.
Auxiliary panel cable
assembly OK.
Relay K9 OK.
Diode D2B OK.
Worklights switch OK.
Faulty dashboard cable
assembly.
Faulty relay K12.
Repair wire 3067 from relay K12
terminal 85 on PDP to terminal board
TB2 position 30 or (para 2-45) replace
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
YES
NO
Is continuity present from
relay K12 terminal 85 and
a known good ground?
If continuity is not present,
wire 3067 is faulty.
Is 12 VDC present at
relay K12 terminal 30?
If 12 VDC is not present,
wire 1674 is faulty.
Faulty dashboard cable
assembly.
Faulty relay K12.
NO
Repair wire 1674 from relay K12
terminal 30 on PDP to circuit breaker
CB72 terminal 2 (para 2-45) or replace
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
YES
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