Notify DS Maintenance.
Replace WTEC II TEPSS (para 8-2).
YES
NO
3.
Is pressure present at
clutch(s) when shift is
made?
TEST OPTIONS
REASON FOR QUESTION
If pressure is low or
missing to clutch(s) when shift
is made, WTEC II TEPSS may
display main code 56 and one
or more sub codes.
KNOWN INFO
Transmission oil level OK.
Fuse OK.
Batteries OK.
Output speed sensor OK.
Transmission turbine speed
sensor OK.
Oil pressure pump OK.
POSSIBLE PROBLEMS
Faulty control valve module.
Faulty WTEC II TEPSS.
TM 9-2320-365-20-2
f18. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN
CODE 56 AND ANY SUB CODE (CONT)
2-1472 Change 1
Pressure Test or
STE/ICE-R Test #50