f18. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN
CODE 56 AND ANY SUB CODE
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-365-10).
Tools and Special Tools
Goggles, Industrial (Item 15, Appendix C)
Tool Kit, Genl Mech (Item 44, Appendix C)
STE/ICE-R (Item 39, Appendix C)
Pan, Drain (Item 24, Appendix C)
Wrench, Torque, 0-200 lb-in. (Item 58, Appendix C)
Wrench Set, Socket (Item 49, Appendix C)
TM 9-2320-365-20-2
2-1468 Change 1
Materials/Parts
Packing, Preformed (Item 199, Appendix G)
Adapter, Straight, Pipe to Tube (Item 1.2, Appendix D)
Adapter, Straight, Tube to Boss (Item 1.3, Appendix D)
Hose Assembly, Nonmetallic (Item 25.1, Appendix D)
Personnel Required
(2)
Reference
TM 9-4910-571-12&P
1.
Is main code 56 logged
without main code 22 sub
code15 or 16?
WARNING
CAUTION
Read WARNING and
CAUTION on
following page.
TEST OPTIONS
Visual Inspection
REASON FOR QUESTION
If main code 22 sub code 15 or
16 is logged, turbine speed
sensor, output speed sensor,
or associated circuit(s) is faulty.
KNOWN INFO
Transmission oil level OK.
Fuse OK.
Batteries OK.
POSSIBLE PROBLEMS
Faulty output speed sensor.
Faulty transmission turbine
speed sensor.
Faulty oil pressure pump.
Faulty control valve module.
Faulty WTEC II TEPSS.
Perform Transmission System Troubleshooting
(f3. WTEC II Transmission ECU Pushbutton Shift
Selector (TEPSS) Displays Main Code 22 Sub Code
15 or f4. WTEC II Transmission ECU Pushbutton
Shift Selector (TEPSS) Displays Main Code 22 Sub
Code 16).
YES
NO
START
