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 1380 of 1824

TM 9-2320-366-20-1

e68. TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE

2-816

Change 1

INITIAL SETUP

Equipment Condition

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)

Material/Parts

Wire, Elect, 50 ft (Item 71, Appendix D)

Personnel Required

(2)

References

TM 9-4910-571-12&P

NOTE

Perform Electrical System Troubleshooting

e1. Circuit Breaker Does Not Operate on

circuit breaker CB42 prior to beginning this

task.

START

WARNING

CAUTION

Read WARNING and

CAUTION on

following page.

Is 24 VDC present at

connector J130 sockets A,

C, and H?

KNOWN INFO

Faulty trailer electrical system.

Faulty dashboard cable

assembly.

Faulty relay K29.

Faulty rear lights cable

assembly.

Faulty rear intervehicular

24 VDC (12 pin) cable.

Towing vehicle blackout marker

lights OK.

Circuit breaker CB42 OK.

TEST OPTIONS

Voltage Test or

STE/ICE-R Test #89

If 24 VDC is present, trailer

electrical system is faulty.

NO

Go to step 2 of this fault.

YES

Troubleshoot trailer electrical

system per trailer technical manual.

1.

POSSIBLE PROBLEMS

REASON FOR QUESTION