SOS Hyundai H-100 (Porter) fails to heat

The timer's time is very short, the spark plugs are not heated. The timer works through the water temperature sensor (resistive) but this sends the signal to dough when the engine is already hot and I remain without activating reluctance of the spark plugs and without strength for the start. I hear it could help me, or know the electrical diagram. Thank you.

Test with another timer is very likely that he has been out of control (that is, the module of the heater)

Change for a new timer and a new temperature sensor ...... The sensor reaches food and internal resistance goes out to timer's time control, but when the motorya is hot decreases the internal temperature of the tempo sensor. And makes the other exit the signal to mass annuling the heater and the forces Pal starter motor ???

But when the engine is already hot, the heater do not have to enter and this is common in a large number of vehicle brands I have had to wait for vehicles to cool to test the operation of many heating circuits

Of course, when it is no longer in, the problem is that the temperature sensor has internal resistance by being hot makes zero mass resistance and sends the current to ground when starting ???