TM 10-3930-641-20
ELECTRICAL SYSTEMS TROUBLESHOOTING (CONT)
(Sheet 1 of 1)
WIRE AND HARNESS TESTING
Because of the numerous wires, harnesses and connectors which interconnect components in this system, tracing of individual wires is left up to you.
Use the mini-schematic diagram accompanying each PROBLEM to determine the wire color, termination and connector locations. Use the schematic
illustrations at the rear of this manual to determine pin and socket locations and overall view. Also, see WIRE LIST, page 2-61.
TIPS
Shorts usually are determined by a light, etc. remaining ON when it should be OFF. After determining that the switch is working properiy, do the
follo wing:
a. Reconnect wire at switch (1).
b. Unplug connector at next connection (2). If light goes out, short is between (1) and (2). If light remains ON, reconnect (2) and disconnect (3) etc.
until last connector. If light remains ON, short is between last connector (3) and lamp socket.
If short cannot be repaired, notify Direct Support to replace harness unless you are authorized to do so.
c.
TA 098590
End
