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 TM 9-2320-366-20-2
WARNING
Wear appropriate eye protection when
working under vehicle due to the possibility
of falling debris. Failure to comply may result
in injury to personnel.
CAUTION
Loose or dirty connectors may cause
intermittent loss of power to transmission
ECU and diagnostic codes to be logged.
Ensure that all connectors are clean and tight
before performing troubleshooting. Failure to
comply may result in incorrect test results.
Use care when testing electrical connectors.
Do not damage connector pins or sockets
with multimeter probes. Failure to comply
may result in damage to equipment.
NOTE
Inspect connector pins/sockets for damage,
corrosion, and serviceability. Check that
connector pins are not pushed back and
are capable of making good contact.
RESISTANCE TEST
(1) Disconnect transmission engine speed
sensor connector from transmission
engine speed sensor.
(2) Set multimeter to ohms.
(3) Connect positive (+) probe of multimeter to
terminal A of transmission engine speed
sensor.
(4) Connect negative (-) probe of multimeter to
terminal B of transmission engine speed
sensor and note reading on multimeter.
NOTE
A good transmission engine speed
sensor will return a reading of 200-400
ohms resistance as follows:
a. 200 ohms at -40F (-40C).
b. 300 ohms at 68F (20C).
c. 400 ohms at 230F (110C).
(5) If resistance is not 200-400 ohms, replace
transmission engine speed sensor (para
7-52).
(6) Connect transmission engine speed sensor
connector to transmission engine speed
sensor.
Change 1
2-1587
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