A potential purchase of a 2002 Denali which has sat for a year in a rusty condition will not blow any air in the front HVAC.
Took the radio fuse out to swap with the cigarette lighter fuse so my scan tool would read check engine codes. Then the lights on the climate control buttons wouldn't work until I put the radio fuse back in...? new 30 amp fuse in Front HVAC still nothing? any help?
Have you checked for power to the blower motor? It could be the motor itself, sitting in that condition I'm surprised anything electrical works.
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