TM-9-2320-365-34-1

M1078 SERIES, 2 1/2-TON, 4 X 4, LIGHT MEDIUM TACTICAL VEHICLES (LMTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 1 OF 2

AUGUST 2005

CHANGE 2

TM-9-2320-365-34-1 - Page 788 of 1334

TM 9-2320-365-34-1

2-694

Change 1

5.

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

POSSIBLE PROBLEMS

Resistance Test or

STE/ICE-R Test #91

Faulty B solenoid.

Faulty WTEC III transmission

ECU.

Is 2.5-5.0 ohms resistance

present from B solenoid

pin A to pin B?

If 2.5-5.0 ohms resistance is

not present, B solenoid is

faulty. If 2.5-5.0 ohms

resistance is present, WTEC III

transmission ECU is faulty.

NO

Replace WTEC III transmission

ECU (TM 9-2320-365-20-3).

Replace B solenoid

(para 7-8).

YES

Circuit breaker OK.

Batteries OK.

WTEC III cab transmission

harness OK.

Transmission external wiring

harness OK.

Transmission internal wiring

harness OK.

c57. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE

42, 44, AND/OR 45 SUB CODE 13 (SERIAL NUMBER 6510032369 AND HIGHER) (CONT)