Answer
What electrical plug and what is wrong with it?
Possible Solutions:
Check the plug for corrosion. This can lead to a bad connection.
Check the wiring diagram and make sure it is not plugged into the wrong port.
if it is, disconnect it and plug it into the correct port.
Check to see if the wiring has become frayed as this may lead to shorting.
This may require replacing the damaged wire or wiring harness.