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TM 10-3930-669-20
2-14. ELECTRICAL SYSTEM TROUBLESHOOTING (CONT).
19. GLOW PLUG INDICATOR DOES NOT OPERATE.
INITIAL SETUP
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
(Item 1, Appendix B)
Multimeter (Item 2, Appendix B)
STE/ICE-R (Optional) (Item 14, Appendix B)
References
TM 10-3930-669-10
Equipment Condition
Engine OFF (TM 10-3930-669-10)
MAIN POWER switch OFF (TM 10-3930-669-10)
Parking brake applied (TM 10-3930-669-10)
Wheels chocked (TM 10-3930-669-10)
KNOWN INFO
24 vdc circuits operate.
POSSIBLE PROBLEMS
Fuse 4 faulty.
Indicator wire 30 is faulty.
Relay R6 ground wire faulty.
Indicator ground wire faulty.
Wire 7 faulty.
Terminal 85 ground wire faulty.
Relay R6, wire 30, terminal 30
faulty.
Relay R6, wire 30, terminal 87
faulty.
Wire 29 faulty.
Glow plug switch faulty.
Wire 31 faulty.
TEST OPTIONS
Visual test.
REASON FOR QUESTION
If element is broken, fuse 4 is
faulty.
2-228
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