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TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE.
5-7.
Light System Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
e. STOP LIGHT/TAILLIGHT(S) DOES NOT OPERATE.
If the multimeter needle does not move, the circuit does not have
c o n t i n u i t y . R e p l a c e s t o p l i g h t / t a i l l i g h t a s s e m b l y , r e f e r to
paragraph 5-35.
Step 3.
Test the continuity of the taillight wire a s s e m b l y . D i s c o n n e ct
the main harness from the intermediate harness, as shown
Connect the multimeter to Terminal A and to Pin U at main
harness connector.
If the multimeter needle does not move, the circuit does not have
c o n t i n u i t y . I d e n t i f y a s a d e f e c t i v e w i r e a n d c o n t a c t D i r e ct
Support.
Step 4.
Test the continuity of the stop light wire assembly. With the
m a i n h a r n e s s d i s c o n n e c t e d f r o m t h e i n t e r m e d i a t e h a r n e s s ,
connect the multimeter to Terminal A and Pin N at main harness
connector.
If the multimeter needle does not move, the circuit does not have
c o n t i n u i t y . I d e n t i f y a s a d e f e c t i v e w i r e a n d c o n t a c t D i r e ct
Support.
5-35
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