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 644 of 1824

TM 9-2320-366-20-1

e18E. WATER TEMP GAGE DOES NOT ILLUMINATE

2-390.18

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)

Materials/Parts

Dimmer Switch Test Wire (Item 20, Appendix E)

Personnel Required

(2)

References

TM 9-4910-571-12&P

TEST OPTIONS

Continuity Test or

STE/ICE-R Test #91

START

1.

CAUTION

Read CAUTION

on following page.

Is continuity present from

main light switch pin F to

pin B?

KNOWN INFO

Circuit breaker CB70 OK.

POSSIBLE PROBLEMS

Faulty main light switch.

Faulty dimmer switch.

Faulty dashboard cable

assembly.

Faulty WATER TEMP gage.

NO

Replace main light switch

(para 7-17).

YES

NOTE

Perform Electrical System Troubleshooting

e1. Circuit Breaker Does Not Operate on

circuit breaker CB70 prior to beginning this task.

REASON FOR QUESTION

If continuity is not present,

main light switch is faulty.