Andrés, I'm glad you could solve it, for the next one keep in mind to follow your theme with the same thread, without dividing it into three parts like this, that way whoever has a similar problem will have the whole issue in one title, greetings .
Note: to round off the task it would be convenient that as it is a car with its years and that perhaps the maintenance of the coolant was not the best, take out the blue sensor to clean it, sometimes the internal face, which is the one that reads the temperature dirty and delays the start of the electro, I don't know if you have such a large wrench (30mm)
Andrés, try to use common sense, I did not talk about 12345, this is the same as: 30, 85, 86, 87 and 87a, I put a picture of a similar relay because I did not find one marked as yours and for you see the figurative position of the pins to be bridged, observe carefully looking at the photo and you cannot err.
Charly..thanks for your help ... I can find out what the problem is .. I posed the temperature sensor and opened the relay… pin 30 was 3.and pin 87 was 5.and I just get in touch it activates the electro ..
I will change the relay ... and then I will verify if the electrode is activated when it reaches the temperature of 97 degrees so that it would be the right way! Thanks again for your patience!