WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN CODE 21 AND ANY SUB CODE

TM 9-2320-366-20-2

f12. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN

CODE 21 AND ANY SUB CODE

INITIAL SETUP

Equipment Conditions

References

Engine shut down (TM 9-2320-365-10).

TM 9-4910-571-12&P

Tools and Special Tools

Personnel Required

Tool Kit, Genl Mech (Item 44, Appendix C)

(2)

Multimeter, Digital (Item 22, Appendix C)

STE/ICE-R (Item 39, Appendix C)

START

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

Fuse OK.

WTEC II TEPSS Reset Check

Transmission oil level OK.

Does main code 21 repeat

REASON FOR QUESTION

Batteries OK.

after code has been

POSSIBLE PROBLEMS

Main code 21 may appear on

manually cleared and

WTEC II TEPSS if voltage from

Faulty WTEC II cab

throttle counts reset?

TPS to WTEC II TEPSS is

transmission harness.

temporarily lost.

Faulty TPS cable assembly.

Faulty WTEC II TEPSS.

YES

Fault corrected.

Change 1