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 988 of 1824

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

Voltage Test or

STE/ICE-R Test #89

e48A. ALL MARKER LIGHTS DO NOT ILLUMINATE IN NORMAL MODE

TM 9-2320-366-20-1

2-604.56

Change 1

If 12 VDC is present, wire

1912 is faulty.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Faulty main light switch.

Faulty relay K20.

WARNING

Read WARNING

on following page.

1.

Is 12 VDC present at relay

circuit breaker CB67 socket

3?

NO

Go to step 2 of this fault.

YES

Repair wire 1912 from circuit breaker CB67 socket 3 to

terminal board TB1 position 26 (para 2-45) or replace

WTEC II dashboard cable assembly (para 7-10) or

WTEC III dashboard cable

assembly (para 7-11).

Circuit breaker CB67 OK.

No marker lights illuminate.

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)

Personnel Required

(2)

References

TM 9-4910-571-12&P

NOTE

START

Perform electrical troubleshooting e1.

CIRCUIT BREAKER DOES NOT OPERATE on

circuit breaker CB67 prior to beginning this

task.