WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN CODE 56 AND ANY SUB CODE

TM 9-2320-366-20-2

f18. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN

CODE 56 AND ANY SUB CODE

INITIAL SETUP

Equipment Conditions

Materials/Parts

Engine shut down (TM 9-2320-366-10-1).

Packing, Preformed (Item 197, Appendix G)

Adapter, Straight, Pipe to Tube (Item 1.2, Appendix D)

Tools and Special Tools

Adapter, Straight, Tube to Boss (Item 1.3, Appendix D)

Goggles, Industrial (Item 15, Appendix C)

Hose Assembly, Nonmetallic (Item 24.13, Appendix D)

Tool Kit, Genl Mech (Item 46, Appendix C)

Personnel Required

STE/ICE-R (Item 41, Appendix C)

Pan, Drain (Item 24, Appendix C)

(2)

Wrench, Torque, 0-200 lb-in. (Item 59, Appendix C)

Reference

Wrench Set, Socket (Item 51, Appendix C)

TM 9-4910-571-12&P

START

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

Visual Inspection

Transmission oil level OK.

REASON FOR QUESTION

Fuse OK.

Is main code 56 logged

Batteries OK.

If main code 22 sub code 15 or

without main code 22 sub

POSSIBLE PROBLEMS

16 is logged, turbine speed

code15 or 16?

sensor, output speed sensor, or

Faulty output speed sensor.

associated circuit(s) is faulty.

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

YES

15 or f4. WTEC II Transmission ECU Pushbutton

Shift Selector (TEPSS) Displays Main Code 22 Sub

Code 16).

2-1692

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