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sprinkles08, ASE Certified Technician
Category: Kia
Satisfied Customers: 22301
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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, I have a problem with the rear break light:a) if the

Customer Question

Customer: hello there!
JA: Thanks. Can you give me any more details about your issue?
Customer: I have a problem with the rear break light:a) if the low beams are off, the rear break light is never on (even if i press the pedal)b) if the low beams are on, the rear break light is always onBased on the info on,I decided to disconnect the Stop Lamp Switch. However, that did not change a) and b) above.Should I still suspect the Stop Light Switch, or should I look for problems elsewhere?
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Submitted: 1 year ago.
Category: Kia
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

The brake lamp switch is a definite possibility for the brake lights not working but it may also be a blown fuse, the bulbs or a wiring issue.

Have you checked fuses?

What year is the car?

Customer: replied 1 year ago.
i checked all fuses already - they are all fine. I meant to mention this yesterday but could not since i was 'put on hold' before I could fully explain my issue.It is hard to imagine something is wrong with the bulbs since they are all ON when I turn the low/high beams on.If it is wiring - I need a more detailed and systematic instructions on how to approach it.And as I said, I've already disconnected the brake lamp switch, but the lights were still on (when the low/high beams are on). Are you saying that I should STILL definitely go ahead, purchase the switch and spend time changing it?
Expert:  sprinkles08 replied 1 year ago.

What you're seeing with the headlamps on are the park lamps rather than brake lamps.

No, I didn't say that the switch should be replaced without testing.

What is the year and model of the vehicle?

Customer: replied 1 year ago.
it is a 2008 Kia Optima.
Expert:  sprinkles08 replied 1 year ago.

Do you have a test light?

Customer: replied 1 year ago.
i do
Expert:  sprinkles08 replied 1 year ago.

Is there power on the black wire at the brake switch?