Question about Toyota Corolla

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Theft deterrent 2003? car wont start..

I just got a used 03 corolla. all the sudden it died, changed battery, changed terminals, battery says 12 amps but car wont turn over at all. lights come on, radio and windows work, but it wont turn over. my father works on cars and is stumped. diagnostics and wiring is all good. only thing he can think of is the theft deterrent has been turned on. how do we solve this? only had the car for 5 months!

Posted by Anonymous on


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  • Toyota Master
  • 2,433 Answers

Could be the neutral safety switch.

Posted on Aug 05, 2017

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  • Toyota Master
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Hello, it most likely has an aftermarket alarm installed, most used car dealers either give you a remote or remove the system completely. try doing this:
with the key out remove the negativw battery cable
Put the key in and turn to ON
leave the door open
re connect the battery
try to start

Posted on Aug 05, 2017


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Posted on Jan 02, 2017

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SOURCE: Car radio dead after dead car battery

you are right, some Honda's have a radio code, most of the time on the radio chassis itself, but like my sisters she had to gone online and give them her VIN and they sent her the code

Posted on Sep 06, 2008

  • 58 Answers

SOURCE: 2000 ford won't start

The first thing you should do is remove the cables from the battery and clean both the clamps and the battery posts until the surfaces look bright.
I apply a protective coating before I replace the cables but it's not necessary to find out if you have found the problem. After you tighten the battery clamps, try to twist the clamp with your hand. If it moves it is not tight enough.
I've often see cars with battery post to small for the clamps.
If it's loose and you can't tighten it any more, you can purchase lead cups that fit over the post.
Remove the clamp and back the nut up as far as it will go, then use a screw driver to spread the clamp. Put the lead cup over the post and press the clamp down until the post is flush with the top of the clamp and tighten it.

Posted on Jan 09, 2009

  • 4 Answers

SOURCE: anti theft engaged for no reason

That one your going to have to goto the dealer for. I think the alarm you have is after market, so you will probably have to if them check it.

Posted on Apr 01, 2009

  • 477 Answers

SOURCE: 2003 Ford Mustang GT Battery Light

Your alternator should power everything when engine is running. Battery is only for start up. Test voltage with a multimeter when engine is running , should be 14V or more . Any less indicates low alternator output.

Posted on Jun 03, 2009

  • 226 Answers

SOURCE: Car radio wont turn on in 2003 Nissan Altima

is the radio connected to a relay under the hood?

Posted on Dec 14, 2009

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