WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN CODE 24 AND/OR 33 AND ANY SUB CODE (cont)

TM 9-2320-366-20-2

f5. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN

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

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

on following page.

Transmission oil level OK.

Auxiliary Oil Cooler Fan Test

Fuse OK.

Does transmission auxiliary

REASON FOR QUESTION

Batteries OK.

oil cooler fan operate?

Engine does not overheat.

Transmission may overheat if

Transmission oil cooler tubes

fan does not operate which will

OK.

cause WTEC II TEPSS to

Transmission oil cooler hoses

display main code 24 and/or 33

OK.

sub code 23.

Transmission oil cooler OK.

POSSIBLE PROBLEMS

Faulty transmission auxiliary

oil cooler.

Faulty transmission oil filters.

Perform Electrical System Troubleshooting

Faulty WTEC II cab

(e148. Transmission Auxiliary Oil Cooler Fan

transmission harness.

Does Not Operate (All Models Except

YES

Faulty transmission external

M1088/M1089) or e149. M1088/M1089

wiring harness.

Transmission Auxiliary Oil Cooler Fan

Faulty WTEC II TEPSS.

Does Not Operate).

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