2001 jeep grand cherokee,heat and a/c do not bloww hot or cold air

Bernard,

HVAC failure
the car has 2 classes of HVAC< manual and ATC
the blower must blow on high.??? does it on high?
if not, check fuses, for blower. (if lower speeds only fail say so)
the blower is dead,
then say if dash controls are Manual or ATC<
atc = automatic temp,controls with a dash thermostat et cetra.

the diagnostic path is different.
the ATC has self test too. .with over 30 errors possible.

use comments to respond, not a new post. please.