My temperature gauge goes crazy what causes this?

 

Engine Coolant Temperature Gauge (’98-’99)
The engine coolant temperature gauge has two
intersecting coils wound around a permanent magnet
rotor. Voltage applied to the coils, through fuse 9 (in
driver’s under-dash fuse/relay box), generates a
magnetic field. The magnetic field, controlled by the
coolant temperature sending unit, causes the rotor to
rotate and the gauge needle to move. As the
resistance in the sending unit varies, current through
the gauge coils changes, moving the gauge needle
toward the coil with the strongest magnetic field.
The coolant temperature sending unit’s resistance
varies from about 137 ohms at low engine coolant
temperature to between 30-46 ohms at high
temperature.

Magnetic fields?

 

So do I replace that number 9 fuse on my 98 Honda Accord for the temperature gauge

 

First I would check continuity from the CTS senor wire, up to the cluster gauge.

Continuity, then ohm it out. Specs given.

How is it going crazy? I wanna see a video. Show me crazy.

 

My temperature gauge goes crazy only when I'm driving

 

Like insane?