Heater

I have and Seat Ibiza Sdi and I am lit the light of the heaters is inteminal. I have changed heating and remains the same. I would like to know what the cause may be.

It has nothing to do, that the light of the heater with the heater is turned on, I have a Volkswagen Bora and Cvuando is turned on the light of the heaters flashing, they can be 2 things, or that no brake light does not work for you than in the pilots (not the third light of dfreno) or that the unbter of the brake lights that are on the pedal does not work.
Check it and tell me something.

PD have the flashing liz in the trabier indicates an important electrical failure such as that the brake lights do not functions.