Author Topic: Hyundai i30 stop lights problem  (Read 539 times)

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  • au Australia
Hyundai i30 stop lights problem
« August 17, 2020, 07:49:19 »
Hi all,     My 2009 Hyundai i30 back stop lights are not working but the overhead back light comes on when I press the brake pedal.  I have read the forum responses from similar previous post.  I have checked the globes which are OK and earthing looks good..    I have tried resetting the ecu - I was careful to earth the positive connection after I disconnected the battery earth so capacitors would be discharged.     This action had worked for a previous forum member.    I have looked up the wiring diagram for the stop lights for the i30.     The wiring diagram shows that it is very unlikely to have the two lower stop lights off and at the same time have the center upper stop light illuminated.   So I guess the wiring diagram may not be accurate.    I am now going to replace the stop light switch at the brake pedal.  However I don't understand how the upper centre stop light comes on if the stop light switch isn't working.    Any comments from the team?

  • Hyundai i30  2009 model hatchback

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Re: Hyundai i30 stop lights problem
« Reply #1 : August 17, 2020, 11:47:37 »
I imagine the LED high brake light is slaved to the same circuit as the incandescent lamps, so I don't see how an ECU reset or brake switch replacement would do anything. The only thing I'd check after the bulbs is the loom and connectors.
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Re: Hyundai i30 stop lights problem
« Reply #2 : August 17, 2020, 13:31:53 »
Does checking the globes include park - reverse and all indicators? not just the brake/tail.

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Re: Hyundai i30 stop lights problem
« Reply #3 : August 17, 2020, 19:27:20 »
Hi Bob and Welcome,

I thought I replied to this but I've been in hospital for last 3 days so it's been a bit crazy. Anyway I'm out now.

You have done much better than most researching the issue and the fixes.

However,  were you aware this model had a brake light switch warranty fix. It would definitely be worth checking with Hyundai if that has been done on your car as otherwise it should still be able to be done FOC.

Some who had the fix needed it twice as there were a couple of different versions depending I think if car had cruise or didn't.  Hope that helps.
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Re: Hyundai i30 stop lights problem
« Reply #4 : August 19, 2020, 16:11:17 »
Sure you are checking the Brake bulbs(globes) not the rear lights.... easily done.


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