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What fuse is needed for starting 2003 alero - Cars & Trucks

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My 2003 Olds Alero failed inspection due to "failed to communicate"

check the fuses such as cig lighter //acc and or harness to obd port for damage or short but usually blown fuse is problem

May 30, 2017 | 2003 Oldsmobile Alero

1 Answer

2003 oldsmobile alero won't turn over. It just makes a clicking sound when I try to start the car. It stalled because of driving through flooded streets. Any help?

Did you test the battery?

----IF --- the water is the (only) issue, you won't be able to
do anything yourself, without a couple decades of vehicle
experience,once things get really wet, you have big problems

When you drive thru water you could end up scrapping the car,
as most shops won't touch that type of work

What has to be done is go wire harness & all it's connectors
one at a time & blow them dry
Also have to check every fuse,every fusible link & may need
wiring diagrams to work on, say on or two problems, IF the rest
of the car & it's systems come back to life okey

I fail to see how long that would take or cost

If you get lucky, maybe only the starter has issues

The clicking is the solenoid trying to engage the starter,
but are there other items wet or fuses blown,check ALL fuses
& links

We seldom get the real story here or at a repair shop from
a vehicle owner,they allows hold back some secrets on what
really is going on.

Jul 19, 2014 | 2003 Oldsmobile Alero

1 Answer

2003 Oldsmobile Alero won't start

Chances are you got water inside the fuse box or a wiring harness connection.
You may have to start tracing circuits to find out what is getting power and what is not.

Jan 10, 2013 | 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

1 Answer

Both blinkers quit at the same time on my 2003 alero

There is a solenoid in your fuse box that likley needs replacing.Look at the fuse diagram for the location

Sep 29, 2010 | 2003 Oldsmobile Alero

1 Answer

Where is the fuse box inside the engine compartment of a 2003 Oldsmobile, Alero and how does it look

Thank you for answering me to my problem with the oldsmobile about finding the fuse box in the engine compartment. I resolved the problems and was able to locate the fuse box and discovered one of the fuses was broken. I went the Auto store and bouth a package and fixed my cigarette lighter outlet.

Thank you again,

Jun 21, 2009 | 2003 Oldsmobile Alero

1 Answer

2003 olds alero igntion/starting problem

i own a 03 alero ... aleros have history of igniton switches going bad... replace it or take it to dealer then ull be charged arm and leg...

Jun 01, 2009 | 2003 Oldsmobile Alero

3 Answers

Cruise control switch won't work on a 2003 Alero

if it worked before i would chk. the fuse, there will be one for it, but if its blowen something made it do it. i would replace it, and if it blows again, you will have to find the cause, could be switch.

Jan 27, 2009 | 2003 Oldsmobile Alero

2 Answers

Electrical issues

Ignition switches on Aleros are notorious for going bad and causing the exact problem you describe. The next time it happens, try turning the ignition key back and forth slightly. If everything starts working again, then have the ignition switch replaced.

Aug 08, 2008 | 2003 Oldsmobile Alero

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