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 568 of 1824

TM 9-2320-366-20-1

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

4.

Is 24 VDC present on

connector P901 pin 3?

KNOWN INFO

TEST OPTIONS

WARNING

CAUTION

Read WARNING and

CAUTION on

following page.

Voltage Test or

STE/ICE-R Test #89

REASON FOR QUESTION

YES

NO

If 24 VDC is not present, wire

1546 is faulty.

Tachometer illuminates.

VOLTS gage OK.

Engine speed sensor OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty auxiliary panel cable

assembly.

Faulty engine control cable

assembly.

Faulty tachometer.

2-362

Change 1

Repair wire 1546 from connector

P913 pin 9 to connector P901

pin 3 (para 2-45) or replace auxiliary

panel cable assembly (para 7-58).