TM-9-2320-366-20-1

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

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

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-1 - Page 580 of 1824

TM 9-2320-366-20-1

e14. TACHOMETER DOES NOT OPERATE OR IS INACCURATE (CONT)

CAUTION

Read CAUTION

on following page.

TEST OPTIONS

Continuity Test or

STE/ICE-R Test #91

REASON FOR QUESTION

KNOWN INFO

Is continuity present from

connector PX26 socket 6

to socket 4?

Repair wire 3083 from connector PX26 socket 4

to connector J31 pin 16 (para 2-45) or replace

WTEC II dashboard cable assembly (para 7-10)

or WTEC III dashboard cable assembly (para 7-11).

Repair wire 3083 from connector PX26

socket 6 to socket 4 (para 2-45) or replace

WTEC II dashboard cable assembly (para

7-10) or WTEC III dashboard cable

assembly (para 7-11).

YES

NO

12.

Faulty dashboard cable

assembly.

POSSIBLE PROBLEMS

Tachometer illuminates.

VOLTS gage OK.

Engine speed sensor OK.

2-366.8

Change 1

If continuity is not present,

wire 3083 from connector

PX26 socket 6 to socket 4 is

faulty. If continuity is present,

wire 3083 from connector

PX26 socket 4 to connector

J31 pin 16 is faulty.