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.
Inspect connector pins/sockets for damage,
corrosion, and serviceability. Check that
connector pins are not pushed back and
are capable of making good contact.
(1) Remove two screws and washers from
(2) Remove screw and washer from front grille.
(3) Remove front grille on cab.
(4) Disconnect connector P119 from connector
(5) Remove instrument panel assembly for
access (para 7-15).
(6) Disconnect connector J115 (top connector)
from WTEC II TEPSS.
(7) Set multimeter to ohms.
(8) Connect positive (+) probe of multimeter
to connector J119h.
(9) Connect negative (-) probe of multimeter to
connector J115-27 and note reading on
(10) Connect negative (-) probe of multimeter to
all other sockets in connector J115, one at
a time, and note reading on multimeter.
(11) Connect negative (-) probe of multimeter to
ground and note reading on multimeter.
(12) If continuity is not present in step 9, or
continuity is present in step 10 or step
11, replace WTEC II cab transmission
harness (para 7-137).