the blower switch would not shut off when my wife turned off the car, a mechanic stole one of the firwall relays relaced the bad one ,cause it was late and now it turns off , so I have only 2 relays on the firewall , he said he didn;t know what the other relays were for , crazy right
what are the other 2 relays on the pass side firewall for?
THANKS

 

Year, make, model? Details are needed to properly answer that question.

 

sorry, 96 CHEVY BLAZER 4X4, 6 cylinder engine