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Page Title:
BACK-UP ALARM DOES NOT OPERATE. |
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 TM 10-3930-673-20-1
2
3. BACK-UP ALARM DOES NOT OPERATE.
INITIAL SETUP
Personnel Required
Tools and Special Tools
Two
Tool Kit, General Mechanic's: Automotive
(Item 18, Appendix F)
References
STE/ICE-R (Item 17, Appendix F)
TM 10-3930-673-10
Multimeter, Digital (Item 9, Appendix F)
Equipment Condition
Engine shut down (TM 10-3930-673-10)
Auxiliary fuel shut-off switch OFF
Parking brake on (TM 10-3930-673-10)
Wheels chocked (TM 10-3930-673-10)
START
WARNING
1
KNOWN INFO
TEST OPTIONS
Read WARNING on
None.
Voltage test.
following page.
STE/ICE-R 89.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Is 24 vdc present at wire 21 of
Back-up alarm faulty.
Wire 21 faulty.
This question eliminates possible
the back-up alarm?
Connector J1 faulty.
problems and determines where
Connector P1 faulty.
troubleshooting continues.
Back-up switch faulty.
Wire 20 faulty.
Circuit breaker CB2 faulty.
Wire 5 faulty.
Relay K2 faulty.
Wire 3 faulty.
Run relay K1 faulty.
Wire 1 faulty.
Go to Step 2 of this
NO
Circuit breaker CB6 faulty.
fault.
Connector J2 faulty.
Connector P2 faulty.
Wire 2 faulty.
YES
Go to Step 14 of
this fault.
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