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Re: 1992 BUICK LESABRE LIMITED, NEED FUSE BOX DIAGRAM
The fuse is in panel with other fuses,however it will say a\c instead of heater. You may want to use a test light to check for voltage at the blower motor plug. To see if current is going to the fuse. Check the other fuses too. since they are linked in parallel to the the acc auto climate .
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the fuse is located in the fuse panel that is under the dash on the drivers side,some have a cover over them that will need removing to get access to the fuses.check the fuses with a test light(all fuses)you may have more than one fuse gone bad.there is no circuit breaker.also you may have a bad blower motor resister located in the air box near the blower motor itself.
REMOVE HEATER BLOWER MOTOR HOT WIRE BLOWER MOTOR IT.IF IT WORKS.YOUR AC AND HEATER CONTROL SWITCH IS FAULTY.CHECK HVAC FUSES AND CHECK BLOWER MOTOR RELAY.IF BLOWER MOTOR DONT WORK WHEN HOT WIRE REPLACE IT.IF ALL CHECK OUT GOOD.HAVE DEALERSHIP DO A DIAGNOSTIC TEST ON YOUR CLIMATE CONTROL SYSTEM.
the heater fan relay should be in the fuse panel. if not ck see if there is a regular fuse too. Who was messing with the car to do that? find the heater blower switch which should be by the radio... and sometimes it is easier to just take out the radio to get more room. check the wiring make sure nothing else is hooked to it . do the same for the blower which may be easy to get to under the pass side dash or thrught the glove box. but check the wires.