Wiring diagram of trace the wires and find the black one leading to a ground source.
you need a wiring diagram, trace power and ground and check where problem might be
What is Trace Cyrus favourite sport?
not 100% sure. should be able to get a wiring diagram for your vehicle and trace wires. wiring diagram will show where relays and connections, fusible links, etc...... run the wire colors, from the fan motor to the relay....but a book does help lol...
try the haynes or chiltons or shop manuals. these are the only places that can be had. it is getting harder and harder to trace and sort out these newer vehicale wiring schema, overqualified
When one takes a look at a wiring diagram for Ford F-150 starter, one will see battery cables. Make sure all cables are clean and tight. Also, make use of a multi-meter to trace the power and to find the problem.
trace cyrus's favorite sport is wiffle ball and by the way he really is 20 yrs old !!!!!~
A process called pedigree.
It's probably bad wiring somewhere and you need to test the coil connectors for power and try to trace the flaky wiring. It's a pain I know.
Its usually hidden in with the heater controls behind the dash. Good Luck finding it. Took me an hour and a half to trace the wires using a wiring diagram.
A family tree