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 1038 of 1334

TM 9-2320-365-34-1

2-942

Change 1

5.

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

Pressure Test or

STE/ICE-R Test #50

Circuit breaker OK.

Batteries OK.

WTEC III cab transmission

harness OK.

WTEC III transmission ECU OK.

Transmission external wiring

harness OK.

Transmission internal wiring

harness OK.

POSSIBLE PROBLEMS

Faulty C3 solenoid regulator

valve.

Faulty C3 pressure switch.

Does C3 pressure switch

open when shift is made?

If C3 pressure switch opens

(STE/ICE-R displays greater

than 0 psi), C3 solenoid

regulator valve is faulty. If C3

pressure switch does not open

(STE/ICE-R displays 0 psi), C3

pressure switch is faulty.

NO

YES

Replace C3 solenoid regulator

valve (para 7-7).

Replace C3 pressure switch

(para 7-8).

c78. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS

MAIN CODE

52 AND ANY SUB CODE (SERIAL NUMBER 6510032369 AND HIGHER) (CONT)