TM-9-2320-366-20-2

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-2 - Page 976 of 1632

KNOWN INFO

4.

TEST OPTIONS

YES

NO

Auxiliary Oil Cooler Fan Test

REASON FOR QUESTION

Transmission may overheat if

fan does not operate which will

cause WTEC III TPSS to display

main code 24 and/or 33 sub

code 23.

Perform Electrical System Troubleshooting

(e148. Transmission Auxiliary Oil Cooler Fan Does

Not Operate (All Models Except M1088/M1089) or

e149. M1088/M1089 Transmission Auxiliary

Oil Cooler Fan Does Not Operate).

TM 9-2320-366-20-2

2-1734

Change 1

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.

POSSIBLE PROBLEMS

Transmission oil level OK.

Fuse OK.

Batteries OK.

Engine does not overheat.

Transmission oil cooler

tubes OK.

Transmission oil cooler OK.

Does transmission auxiliary

oil cooler fan operate?

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

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