Quantcast M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT) - TM-9-2320-366-20-20738

 

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VOLTAGE TEST - TM-9-2320-366-20-20737
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TM-9-2320-366-20-2 M1083 Series 5-Ton 6 x 6 Medium Tactical Vehicles (MTV) Manual
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CONTINUITY TEST - TM-9-2320-366-20-20739
TM 9-2320-366-20-2
e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT)
KNOWN INFO
TEST OPTIONS
4.
Continuity Test or
Circuit breakers CB71, CB72,
STE/ICE-R Test #91
and CB74 OK.
Is continuity present from
REASON FOR QUESTION
Hazard lights illuminate.
relay K12 terminal 85 and
Light bulb OK.
a known good ground?
If continuity is not present,
Auxiliary panel cable
wire 3067 is faulty.
assembly OK.
Relay K9 OK.
Diode D2B OK.
NO
Worklights switch OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
Repair wire 3067 from relay K12
assembly.
terminal 85 on PDP to terminal board
Faulty relay K12.
TB2 position 30 or (para 2-45) replace
YES
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
5.
Voltage Test or
Circuit breakers CB71, CB72,
STE/ICE-R Test #89
and CB74 OK.
Is 12 VDC present at
REASON FOR QUESTION
Hazard lights illuminate.
relay K12 terminal 30?
Light bulb OK.
If 12 VDC is not present,
Auxiliary panel cable
wire 1674 is faulty.
assembly OK.
Relay K9 OK.
Diode D2B OK.
Worklights switch OK.
NO
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Repair wire 1674 from relay K12
Faulty relay K12.
terminal 30 on PDP to circuit breaker
CB72 terminal 2 (para 2-45) or replace
YES
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
2-1546
Change 1

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