Question about 1999 Buick LeSabre

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Location of low speeds heater fan fuse & switch. I do not have a owners manual.

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The switch is on the dash with the other a/c controls. does the fan work at all? high speed OK? but the lower speeds dont work? if any speeds other than high dont work, replace the blower resistor.

Posted on Oct 04, 2009

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Missing the owners manual for 1986 accord need to locate which fuse is for cooling fan under dash. have already checked ones under hood


ooh that is and oldie....

the heater blower fan is dead, ?
this car is wired (im looking in alldata dot com now)
gets 12v power from the IGNITION at all times. so there is no
blower fuse. (if the fan shorts, the engine fuse blows. and engine dies.
the current passes thru motor, and then to the dash speed switch
and on level 4 there is no resistor, so must run, here, (does it?)
then the switch is grounded.
so if engine runs.
and speed 4 fails, it can only be.
1: bad ground to switch.
2:bad wires.
3 :bad switch,
4: bad fan, (hot wire fan does it work,. yes, good its good.

id put my DMM across the fan , turn it on, and if 12vdc is across said fan, and it dont blow, its a bad fan.
if the low side of fan is not 0v, all times. the ground is bad.
if the 12v never reaches the fan, then the path on that side is bad.

Oct 24, 2013 | Honda Accord Cars & Trucks

1 Answer

Location for blower motor/heater/fan fuse?


Before you rip, check the 30A HEATER CIRCUIT BREAKER in the instrument panel fuse panel. The input is hot with the engine running. CB output connects directly to the heater blower motor. A cluster of heater blower motor resistors determines blower speed as selected by the blower switch in the heater control assembly. The switch setting is sent to the powertrain control module (PCM) which acts to turn the blower motor on at the selected speed.

Sep 22, 2012 | 1994 Ford Escort

1 Answer

Interior fan want work


First, check the fuse block for an open / blown fuse. You didn't provide the make & model of your car, so you'll have to find out which fuse is used for the fan. Replace any open / blown fuse found with the correct size as determined by the manual. If it still doesn't work, keep reading:

Many cars and trucks use what is called a "resistor pack" that is used to determine various preset speeds for the heater & A/C blower or fan. When you switch the fan from one speed or another, power is passed through a different value of the resistor - which changes the voltage to the fan motor. The different voltages provides different speeds.

The resistor pack is usually the problem if the fan works at one or more - but not all speeds. It can be the problem if the fan doesn't work at all either. The location of the resistor pack varies with vehicle make and model, but is often very close to the motor itself and accessible from the passenger compartment. Consulting with a employee at an auto parts store or Chilton's (or similar) auto repair manual should get you to the right spot. Resistor packs are relatively inexpensive at about $25 or less.

I hope this helps & good luck!

Mar 25, 2012 | Cars & Trucks

1 Answer

Need to know where the fuse is for the fan by the radiator. I know where the fuse box is at because mercury sable has 2 boxes. Which one contains the fan fuse. My fan is not working and been replaced and...


You have a relay there are 2 speeds low speed and high speed this is controled by a cooling fan module if you changed fan and it does not work then you will need to check the fan module, first the relay its in the engine fuse junction box High speed is marked on the relay C1056 and low marked C1058, here is what you can do go to the high spped relay open thhe cover and expose the relay with key on collapse the relay does the fan come on? if it doesnt replace the fan module if it does you will still have to replace the fan module here is the location is at the radiator on the front (may be under shroud)

Jun 08, 2011 | 2003 Mercury Sable

2 Answers

My heat has stop blowing. replaced blower, and heater on off switch. what else could it be?


LX? DX? EX? Hatchback? sedan? wagon?coupe? engine size? did you check the fuse? Fuse #19, 30 amps in the auxilary fuse box (your owners manual may show the location ,it may be near the blower ?). The Blue/White wire at the heater blower motor should be HOT (12v) with key on. If you ground the Blue/Black wire the motor should run full speed.

Dec 17, 2010 | 1991 Honda Civic

4 Answers

Heater on my envoy only works on 3-4 setting, could that be the switch.


Thanks for the opportunity to let me help. The blower control switch in your vehicle also uses a blower relay. This relay is generally located on the firewall on the passenger side near the heater fan. You can also look in you vehicle owners manual for the location of the blower relay, it may be also be located in the fuse and relay box under the hood. Generally speaking if the highest setting doesn't work on a GM vehicle it is a high blower Relay. This item is not expensive and can be purchased at most all you local Auto parts stores. If you have a Napa, Orielly's, or AutoZone these stores will also likely help you in the location if you are unable to locate this relay. Here is a general picturepepsiman1967.jpg The installation of this relay is either to remove from the fuse box, or if located near the heater fan housing then you will need to remove the mounting screws, remove the wiring clip, then reverse to install. I hope that this has helped you. D.R. Wilkins

Nov 05, 2010 | 2004 GMC Envoy

1 Answer

Hidh speed on heater blower. In other words


Yup. Refer to your owner's manual for location. The HIGH side of the blower is fused on it's own circuit, usually a 15 AMP fuse.
Good Luck . . .

Dec 27, 2009 | 2006 Chevrolet Silverado 2500HD 2WD

2 Answers

Heater fan only blows on high


I believe there are TWO fuses for the heater blower. One for the lower speeds and one for the high speed ONLY. REcheck the fuses or refer to the owner's manual for the location...

Dec 15, 2009 | 1998 Chevrolet K1500

1 Answer

Heater fan stopped working. Is there a fuse 1999 Buick Century


Actually there are 2 fuses. One is for the lower speeds and one is for High speed. Might be a relay, too. Check the owner's manual for the location. I believe the high speed one is under the rear seat.

Dec 01, 2009 | 1999 Buick Century

1 Answer

My radiator fans stopped workin it mite be the fuses but I don't have the owners book so I don't know wich one it is. If somebody can tell me the number it would be appreciated thank you.


the cooling fans are protected by fuses and relays. Usually there is a low speed and high speed setting or 2 fans with one on or both on depending on engine temp.

The engine computer controls the fan by reading the ECT, engine coolant temperature sensor. It then sends the signal to run the fans.

Also, whenever the a/c is on, the cooling fans operate.

Check your owner manual for location of fuse panels (2) and which fuses or relays to check.

Does fan come on when you turn a/c on?

Apr 30, 2009 | 2001 Ford Windstar

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