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TM 10-3930-669-20
2-14. ELECTRICAL SYSTEM TROUBLESHOOTING (CONT).
1. ALL 24 VDC CIRCUITS DO NOT OPERATE.
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's: Automotive
Engine OFF (TM 10-3930-669-10)
(Item 1, Appendix B)
MAIN POWER switch OFF (TM 10-3930-669-10)
Multimeter (Item 2, Appendix B)
Parking brake applied (TM 10-3930-669-10)
STE/ICE-R (Optional) (Item 14, Appendix B)
Wheels chocked (TM 10-3930-669-10)
Jumper Wire
References
TM 10-3930-669-10
KNOWN INFO
Main disconnect switch is
on.
Engine cranks but does not
stay running.
POSSIBLE PROBLEMS
Wire 34 faulty.
Relay R2 ground wire faulty.
Wire 7 faulty.
Wire 26 faulty.
Relay R2 faulty.
Engine switch faulty.
TEST OPTIONS
Voltage test.
STE/ICE-R #89.
REASON FOR QUESTION
If 22 to 24 vdc are not present,
wire 34 is faulty.
2-124
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