Question about 2003 Mazda Protege

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Possible electrical problems.

I own a mazda protege 5 2002. The battey went dead the other day. We tried boosting it and eneded up melting a bit of the cable on the positive end. So i replaced the battery with a new one.

I attached the positive then the negatve. While attaching the negative some sparks began to show (not alot) and i heard a popping sound in the fuse box.

The really odd thing is that my headlights came on and only the head lights. The lights were not turned on in my car, nor was the kety in the ignoition and the hand brake was on.

So i actually blew the main fuse and had to replace it. I reatachyed everything put in the new fuse and tried ttaching the negative cable again and blew the new fuse.

The headlights still come on. Why are the headlights coming on but i'm blowing fuses. Could it be the relay for my lights are fused and will stay on which is overlaoading the main fuse when i attach the new battery?

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  • lax30 Feb 03, 2009

    I unfortunately have 2 Mazda Proteges ('98 and '03). For approximately 100,000 miles they worked fine but then both developed an unending sequence of bizarre electrical problems. There's nothing more frustrating or expensive than electrical problems in a car. After a quick google search it appears that I'm not the only one. They are now totally unreliable. I'm sending both off to the crusher.


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I would suggest that you check to see if the battery is connected properly---correct polarity!

If connected wrong, main fuse will blow. Lights come on because power is routed through the frame (ground) briefly.
Hope this helps.

Posted on Jan 06, 2009

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