[N.Brown]

I need Help. Brake light stay on.
I replace the switch and the problem persists. I checked the bulbs and the sockets and everything is fine.

can anybody help me?

 

[Turbonut]

First test-Pull up on the pedal to see if there is play and the brake lights go off?

 

[N.Brown]

Yes they turn off but suddenly turn on by themselves even when the car is turned off

 

[Turbonut]

When the car is off, the brake lights will work, that's normal. Check the brake switch bracket to make certain it's not bent/broken. On the early 3G Optima's there was a problem and if I remember correctly the pad that the brake pedal contacts wears and the pedal is too close to the switch so it stays on. So the battery doesn't run down, you can take something and place it between the pad and pedal to get the pedal higher and see if the lights remain off. If they remain on, you can disconnect the negative terminal, but that will erase all the saved data.
Keep us posted.

 

[N.Brown]

I checked it and everything is correct, rather I think it is a short circuit or something like that because sometimes it is working normally and suddenly the lights turn on by themselves when the car is off in the garage as if I were pressing the pedal. It is strange, I have never heard anything like it. Any ideas about that?

 

[Turbonut]

Yes, need to isolate the switch, so prop the pedal away from the switch and see if the brakes come on. If they do circuit, if not, adjustment needed switch/pedal.

 

[N.Brown]

Okay, I'll try and thank you very much.

 

[N.Brown]

I solved the problem, had a bad connection in the car branch near the driver's door.

 

[Turbonut]

Great! Thanks for posting the repair/fix.