tiburon 03 2.0L on 2006 Hyundai Tiburon

hi , my fan is running in 2 spee, when i put 3 and 4 speed idont get any heat , ihaave chaanged the blower motor still saame problem,ihave changegd resistor still the saame please need addvice thaank you,

Asked by for the 2006 Hyundai Tiburon
poss grounding issue. you may want to seek help on this as it could be several things