Question about 2007 Hyundai Sonata Limited Sedan

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Need color codes for 2005 hyundai sonata stereo.Tried to install aftermerket stereo and cut harness.Interior lights, door locks, and alarm wont work.

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Here's the wiring diagram

Need color codes for 2005 hyundai sonata stereo - dbe156b.jpg

Posted on Oct 25, 2009


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How do you get a 2004 hyundai sonata to start after new battery was installed causing the alarm to keep going off.

have you tried locking and unlocking the car with the remote. How about locking and unlocking the drivers front door with the key?

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Hazard lights come on while car not running and unattended

First thing I'd look for is aftermarket wiring installed under the instrument panel. I'm referring to stuff like aftermarket alarm system, aftermarket power door locks or aftermarket remote start system. I've seen numerous cases of incompetent installations of these items. These items are also known for high failure rates, which can cause weird problems. Second, try unplugging the harness for the multifunction [aka turn signal] switch. Does the problem stop when this is done? If so, you may have an intermittent short in this switch or the wiring going to it.

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Spring Switch above key and tumbler controls alarm, auto door lock, clock, license plate lamp.

In your situation I would take to a Hyundai dealer as amateurs have messed it up.

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Hi, I have a 2005 Sonata. I lock the doors with the remote, but after about 5 minutes they all unlock again by themselves, the doors can be opened and the alarm will sound until i use the remote to turn...

my first place to look is in the driver door to body wire harness I am suspecting corrosion on the harness wires to pin connectors that go from left kick panel to door harness corrosion will cause everything from the horn to blow wipers work or radio come on off on own

Nov 01, 2017 | 2005 Hyundai Sonata

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2006 Hyundai Sonata, Doors do not turn on interior light


Make sure all door switches are functioning properly. See that each switch pushes in and out, without sticking.

Feb 09, 2010 | 2006 Hyundai Sonata

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My 2005 Sonata starts fine 90% of the time. But if you unlock the door (either with key or remote) and the interior lights start flashing, the car will no start. I have it towed to the dealer and all...

Interior lights don't 'FLASH'... just the PARKING lights.... that means the burglar alarm is active - NATURAL and NORMAL that the engine doesn't start. Find a 'COMPENTENT' Hyundai Technician - have it properly diagnosed!... then you'll know what the problem is.

Sep 04, 2009 | Hyundai Sonata Cars & Trucks

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I need help with a wiring layout for a stereo.

Forget it...go to a car stereo installation shop and buy a wiring harness for your car ($20-40) and you're done!
Good Luck
P.S. might as well buy a dash kit ($30) to make installing the radio simpler as well...if you DON'T have a car stereo shop nearby, order parts from

Jun 23, 2009 | 2007 Hyundai Sonata Limited Sedan

1 Answer

Alarm Issues

I have been having this same issue for the past 6 months. So far no one can give me an answer that solves the problem. I have done several things unsuccessfully 1) changed the battery (still happens) 2) flipped the valet toggle switch under the steering column (still happens) 3) I lock the doors using the automatic lock button on the driver and/or passenger door (the alarm will not self-activate and go off, but this still doesn't solve the root problem with the alarm)

Mar 28, 2009 | 2005 Hyundai Sonata

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