NO
YES
Replace WTEC III cab transmission
harness (para 7-87).
Replace WTEC III transmission
ECU (para 8-7).
3.
Is continuity for common
ground present from
connector P114-25 to
connector J119Z and
J119a?
TEST OPTIONS
Continuity Test or STE/ICE-R
Test #91
REASON FOR QUESTION
If continuity for common
ground is absent, main code 33
will be logged in addition to
main code 21.
KNOWN INFO
Fuse OK.
Transmission oil level OK.
Batteries OK.
TPS cable assembly OK.
POSSIBLE PROBLEMS
Faulty WTEC III cab
transmission harness.
Faulty WTEC III transmission
ECU.
TM 9-2320-365-20-2
2-1540 Change 1
f30. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE
21 AND ANY SUB CODE (CONT)