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TM 9-2320-364-20-2
2-1183
(1) Disconnect sensor wire from suspect
sending unit (Table 2-39).
(2) Ground sending wire to a known good
ground.
(3) Set multimeter select switch to ohms.
(4) Is there continuity between terminal S
of faulty gage and a known good
ground?
(a) If there is no continuity, repair
sensor wire (see schematic
Fig 2-26).
(b) If there is continuity, sensor wire
is OK.
CONTINUITY TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
Table 2-39. Gage/Sending Units Test Points
Gage
Nomenclature
Sensor
Terminal
Sensor
Wire
Sending Unit
Nomenclature
12vdc meter
Fuel Level
Oil Pressure
Water
Temperature
Transmission Oil
Temperature
S
S
S
S
S
1276
1318
1113
1320
1149
None
Fuel level
Engine oil pressure
Water temperature
Transmission Oil
Temperature
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