TM-9-2320-365-20-1

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

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 1 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-365-20-1 - Page 1392 of 1760

TM 9-2320-365-20-1

e88.

PTO DOES NOT OPERATE (CONT)

KNOWN INFO

YES

NO

TEST OPTIONS

REASON FOR QUESTION

Replace PTO switch

(para 7-18).

4.

Is continuity present from

PTO switch terminal 5 to

terminal 1?

Continuity Test or

STE/ICE-R Test #91

Circuit breaker OK.

Vehicle starts.

PTO OK.

POSSIBLE PROBLEMS

Faulty PTO switch.

Faulty auxiliary panel cable

assembly.

Faulty dashboard cable

assembly.

Faulty PTO cable assembly.

Faulty WTEC II VIM.

Faulty WTEC II relay SF02.

Faulty WTEC III relay K37.

Faulty WTEC III transmission

ECU.

If continuity is not present,

PTO switch is faulty.

2-976

Change 2