1.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
on following page.
REASON FOR QUESTION
YES
NO
Voltage Test or
STE/ICE-R Test #89
Is 12 VDC present at relay
circuit breaker CB67
socket 3?
If 12 VDC is present, wire
1912 is faulty.
Go to step 2 of this fault.
Circuit breaker CB67 OK.
No marker lights illuminate.
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Faulty main light switch.
Faulty relay K20.
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-365-10).
Personnel Required
(2)
e47A. ALL MARKER LIGHTS DO NOT ILLUMINATE IN NORMAL MODE
Tools and Special Tools
Tool Kit, Genl Mech (Item 44, Appendix C)
STE/ICR-R (Item 39, Appendix C)
Multimeter, Digital (Item 22, Appendix C)
References
TM 9-4910-571-12&P
Repair wire 1912 from circuit breaker CB67
socket 3 to terminal board TB1 position 26
(para 2-40) or replace WTEC II dashboard
cable assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
TM 9-2320-365-20-1
2-584.52 Change 1
NOTE
Perform Electrical System Troubleshooting
e1. Circuit Breaker Does Not Operate on
circuit breaker CB67 prior to beginning this task.
START
