ALL MARKER LIGHTS DO NOT ILLUMINATE IN NORMAL MODE

TM 9-2320-366-20-1

e48A. ALL MARKER LIGHTS DO NOT ILLUMINATE IN NORMAL MODE

INITIAL SETUP

Personnel Required

Equipment Conditions

(2)

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

References

Tools and Special Tools

TM 9-4910-571-12&P

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

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

Multimeter, Digital (Item 22, Appendix C)

NOTE

Perform electrical troubleshooting e1.

CIRCUIT BREAKER DOES NOT OPERATE on

circuit breaker CB67 prior to beginning this

task.

START

WARNING

Read WARNING

on following page.

KNOWN INFO

TEST OPTIONS

Is 12 VDC present at relay

Circuit breaker CB67 OK.

Voltage Test or

circuit breaker CB67 socket

No marker lights illuminate.

STE/ICE-R Test #89

POSSIBLE PROBLEMS

REASON FOR QUESTION

If 12 VDC is present, wire

Faulty dashboard cable

1912 is faulty.

assembly.

Faulty main light switch.

Faulty relay K20.

YES

Go to step 2 of this fault.

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).

Change 1