TM-9-2320-365-20-1
M1078 SERIES, 2 1/2-TON, 4 X 4, LIGHT MEDIUM TACTICAL VEHICLES (LMTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-365-20-1 - Page 1326 of 1760
KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
TM 9-2320-365-20-1
KNOWN INFO
2-918.12
Change 2
20.
Is 4.9-5.1 VDC present at
connector P113 socket B?
Voltage Test or
STE/ICE-R Test #89
WARNING
Read WARNING
on following page.
Replace pressure transducer
(para 12-7).
POSSIBLE PROBLEMS
21.
NO
REASON FOR QUESTION
TEST OPTIONS
Continuity Test or
STE/ICE-R Test #91
Is continuity present from
air pressure switch pin A to
air pressure switch pin B?
YES
Replace air pressure switch
(para 23-8).
e82. CENTRAL TIRE INFLATION SYSTEM (CTIS) DOES NOT OPERATE (CONT)
Faulty air pressure switch.
Faulty start and charging cable
assembly.
Faulty WTEC II / WTEC III
dashboard cable assembly.
Faulty CTIS cable assembly.
VOLTS gage registers in green
zone with engine running.
Circuit breaker CB40 OK.
FRONT BRAKE AIR and
REAR BRAKE AIR pressure
gages read normal.
If continuity is not present, air
pressure switch is faulty.
If 4.9-5.1 VDC is not present,
CTIS ECU is faulty.
If 4.9-5.1
VDC is present,
pressure
transducer is faulty.
NO
YES
Replace CTIS ECU (para 12-6).
TEST OPTIONS
VOLTS gage registers in green
zone with engine running.
Circuit breaker CB40 OK.
FRONT BRAKE AIR and
REAR BRAKE AIR pressure
gages read normal.
Air pressure switch OK.
Start and charging cable
assembly OK.
WTEC II / WTEC III dashboard
cable assembly OK.
Manifold valve assembly OK.
CTIS cable assembly OK.
POSSIBLE PROBLEMS
Faulty air pressure transducer.
Faulty CTIS ECU.
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