TM 5-3805-262-20
5-10. WIRING HARNESS MAINTENANCE (CONT)
c. Blackout Lights Wiring Harness.
This task covers testing and repair of
blackout lights wiring harness .
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Socket wrench set, 3/8 inch drive
E l e c t r i c a l r e p a i r t o o l k it
Multimeter
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Insulation tape (Appendix C, item 5)
Electrical cleaner (Appendix C, item 19)
NOTE
PRELIMINARY PROCEDURE: Battery ground cable disconnected (page
TESTING (SHEET 1 OF 2)
NOTE
5-148).
T e s t i n g c o n s i s t s o f s t a r t i n g t h e e n g i n e a n d o p e r a t i n g f r o n t a n d r e ar
b l a c k o u t l i g h t s .
The wiring harness is okay if blackout lights operate
normally. If necessary, you may test individual wires for continuity by
e n e r g i z i n g t h e c o r r e s p o n d i n g l i g h t c i r c u i t s h o w n i n f i g u r e F O - 3 a n d
checking for voltage using multimeter or test light. To test for shorted
o r g r o u n d e d w i r e,
you must disconnect both ends of wire under test as
f o l l o w s.
5-178
