Notify DS Maintenance.
Replace WTEC III transmission ECU (para 8-7).
YES
NO
3.
Is pressure present at
clutch(s) when shift is
made?
TEST OPTIONS
KNOWN INFO
Transmission oil level OK.
Fuse OK.
Batteries OK.
Output speed sensor OK.
Turbine speed sensor OK.
Main oil pressure OK.
POSSIBLE PROBLEMS
Faulty WTEC III transmission
ECU.
TM 9-2320-365-20-2
2-1578 Change 1
If pressure is low or missing to
clutch(s) when shift is made,
WTEC III TPSS may display
main code 56 and one or more
sub codes.
REASON FOR QUESTION
Pressure Test or
STE/ICE-R Test #50
f36. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE
56 AND ANY SUB CODE (CONT)