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 668 of 1824

e21. TACHOMETER DOES NOT ILLUMINATE

Personnel Required

(2)

References

TM 9-4910-571-12&P

1.

KNOWN INFO

Hazard lights switch

illuminates.

POSSIBLE PROBLEMS

TEST OPTIONS

REASON FOR QUESTION

YES

START

This question eliminates

possible problems and

determines where

troubleshooting continues.

Faulty auxiliary panel cable

assembly.

Faulty dashboard cable

assembly.

Faulty tachometer.

NO

Continuity Test or

STE/ICE-R Test #91

CAUTION

Read CAUTION

on following page.

Is continuity present from

connector P901 socket 1 to

a known good ground?

Go to step 4 of this fault.

TM 9-2320-366-20-1

2-400

Change 1

INITIAL SETUP

Equipment Conditions

Engine shut down (TM 9-2320-366-10-1).

Tools and Special Tools

Tool Kit, Genl Mech (Item 46, Appendix C)

STE/ICE-R (Item 41, Appendix C)

Multimeter, Digital (Item 22, Appendix C)

Wrench, Torque, 0-200 lb-in. (Item 59, Appendix C)