Hello, I come with the problem of lighting up
.the light comes on when I am driving at a constant speed, my foot is on the gas and some 3000 thousand revolutions depend on the gear, but at a higher speed. The light does not make any impression on the car when this light is turned on, but I'm afraid that something serious is just waiting for a moment to spill out. Recently, I replaced the relay because the car went out every now and then and the problem was fixed. I cleaned all the contacts, thinking I had repaired, but not completely. From what I noticed, after reaching the parking temperature, the radiator fan does not turn on and the central one has stopped working. To this set there is a problem with the speedometer because it works once, not what surprised me, the tachometer works. Besides, the car is white when a little bit comes
Please help, Thank you in advance.

Please help, Thank you in advance.