WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE 21 AND ANY SUB CODE

TM 9-2320-366-20-2

f30. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE

21 AND ANY SUB CODE

INITIAL SETUP

Equipment Conditions

References

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

TM 9-4910-571-12&P

Personnel Required

Tools and Special Tools

(2)

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

Multimeter, Digital (Item 22, Appendix C)

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

START

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

WTEC III Transmission ECU

Fuse OK.

Reset Check

Transmission oil level OK.

Does main code 21 repeat

REASON FOR QUESTION

Batteries OK.

after code has been

manually cleared and

Main code 21 may appear on

POSSIBLE PROBLEMS

throttle counts reset?

WTEC III TPSS if voltage from

TPS WTEC III transmission

Faulty WTEC III cab

ECU is temporarily lost.

transmission harness.

Faulty TPS cable assembly.

Faulty WTEC III transmission

ECU.

YES

Fault corrected.

Change 1