WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE 24 AND/OR 33 AND ANY SUB CODE (cont)

TM 9-2320-366-20-2

f25. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE

24 AND/OR 33 AND ANY SUB CODE (CONT)

KNOWN INFO

TEST OPTIONS

Transmission oil level OK.

Auxiliary Oil Cooler Fan Test

Fuse OK.

Does transmission auxiliary

REASON FOR QUESTION

oil cooler fan operate?

Batteries OK.

Transmission may overheat if

Engine does not overheat.

fan does not operate which will

Transmission oil cooler

cause WTEC III TPSS to display

tubes OK.

main code 24 and/or 33 sub

Transmission oil cooler OK.

code 23.

POSSIBLE PROBLEMS

Faulty transmission auxiliary oil

cooler.

Faulty transmission oil filters.

Faulty WTEC III cab

transmission harness.

Faulty transmission external

wiring harness.

Faculty WTEC III transmission

ECU.

Perform Electrical System Troubleshooting

(e148. Transmission Auxiliary Oil Cooler Fan Does

YES

Not Operate (All Models Except M1088/M1089) or

e149. M1088/M1089 Transmission Auxiliary

Oil Cooler Fan Does Not Operate).

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