Question about 2003 Oldsmobile Alero

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Cant find fuse box

Where is under hood fuse box for 03 olds alero

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When you stand in front of the car, look at the battery.
now look furter away from you - that's the air filter casing. (It has 4 screws fastening it, 3 are easily visible)
now look even further away from you - THERES THE FUSE BOX!!! (it has a screw in the middle.)

Posted on Jul 08, 2009


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2 Answers

Where is heater blower fan fuse on a 2000 olds alero? how do you tell if fuse is bad?

Pull it out an see if it's burnt . The fuse is located in the right hand instrument panel fuse box . HVAC BLOWER fuse 20amp . There is also a blower motor relay in the under hood fuse box .
RH IP Junction Block (fuse box)
In the right side of the passenger compartment , open the right door ,at the end of the I/P pull the plastic cover to see fuse box

Jan 29, 2017 | 2000 Oldsmobile Alero

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Fuse for heater 2004 alero

So what's the problem ? your blower motor not working ? Not any speed ? There are two different circuit's , one for the slower speeds an one for high speed alone ! One fuse is in the end of the right Instrument panel fuse box , marked HVAC BLOWER fuse D 20 amp .The other fuse is in the under hood fuse box marked

Feb 11, 2015 | 2004 Oldsmobile Alero

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No power to my heater and air conditioning controls on my 2002 alero, have checked all my fuses

you have 2 fuses, one under the hood fuse #46 and one under the dash fuse L, both are 10A, if they are both good replace your control panel.

Oct 02, 2014 | 2002 Oldsmobile Alero

1 Answer

Where is the horn fuse 2004 olds alero?

The horn relay is in the fuse/relay box under the hood. There is a round thumb screw on top of the box. Remove it and the relays are listed. The horn is a large rectangle, wiggle it up and out. I think it is listed as # 21.

Jun 22, 2014 | 2004 Oldsmobile Alero

1 Answer

Where is the fuse(s) for my power windows?....2003 Olds Alero..there is nothing indicating where their location mechanic said he pulled the fuses to stop my power window malfunction before i...

Each fuse box will have a guide within it showing the placement of the fuses, what they control, and their breaking point. The guide is on the bottom of the top of the lids on the fuse boxes. It is not a piece of paper, is it actually stamped to the plastic.

Jun 22, 2014 | 2003 Oldsmobile Alero

1 Answer


There are 3 fuse boxes on an '03 Alero. The block with the horn fuse is under the hood. If you're at the front of the grill looking under the hood, the fuse box is on the drivers side closer to the windshield. It is rectangular (about 6" by 8") and has a fuse symbol with a little lightning bolt on it. The star knob is the only thing that holds the cover on.
The horn fuse on mine is #21, a larger gray 4 prong fuse. Good Luck with that one.

Dec 02, 2011 | 2003 Oldsmobile Alero

2 Answers

No dash or tail lights for my 03 alero and all was well before i pulled unto the street

first check fuse 45 in the box under the hood. If you, try swapping the AUTO PRK relay (#19) with another relay to see if that's the problem. I believe it's one or the other of these. If not, please get back to me.


Nov 29, 2010 | 2003 Oldsmobile Alero

3 Answers

Where is the fuel pump relay switch

I replaced the fuel pump and the fuel pump relay also the battery is new and its cranks but it is not starting. What do I need to do next? or replace? possibly since its a 2002 Alero, would it be the ignition switch?

Feb 03, 2010 | 2002 Oldsmobile Alero

4 Answers

Fuse location


1991 Olds Cutlass Supreme fuse box location. Open the glove box, then the flap for the deep storage pocket. There should be a couple of holes there. Put your fingers in the finger holes and pull up. The glove box lifts up and out, and there should be the fuse box. There also should be some fuses under the hood. Open the hood, and on the left hand (passenger) side should be a flap between the fender and the engine. Open the flap (it comes all the way off) and there are some other fuses, mostly A/C and electrical fuses, I believe. I know it's a 1991 & you wanted a 1997, but i think it should be similer, give it a try.

Good luck,

Jun 07, 2008 | 1997 Oldsmobile Cutlass Supreme

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