Parking Lights Turn On When Applying Brakes
02-13-2010, 03:13 PM
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Parking Lights Turn On When Applying Brakes
Everytime I apply my brakes, my running lights turn on, and once I release the brakes they turn off. Obviously it is something electrical, but has anyone seen/heard of this happening before? And if so, can you pinpoint the problem?
UPDATE:
Even without my key inserted into the ignition my running lights still turn on once I apply the brake.
UPDATE:
Even without my key inserted into the ignition my running lights still turn on once I apply the brake.
Last edited by klanham08; 02-17-2010 at 01:58 PM.
02-13-2010, 04:02 PM
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No, I am not the original owner, I am the second owner of the car. And yes I have foglights, but this is the first time this has happened.
It doesn't really bother me I think it is kinda cool, but it is just weird and was wondering if anyone knew why this what going on and maybe how to fix it.
It doesn't really bother me I think it is kinda cool, but it is just weird and was wondering if anyone knew why this what going on and maybe how to fix it.
02-13-2010, 04:12 PM
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02-13-2010, 04:18 PM
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What exactly is a towing connector? It is also making part of the headlights come on as well, only the running lights not my HIDs.
02-15-2010, 06:53 PM
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I would guess that you may have a poor ground connection in one of your taillights. Bad grounds can make your lights seem like they are possessed. Check to see if both brake lights are of the same brightness. Typically the one with the poor ground will burn less brightly. I don't understand why exactly, but when a ground is poor, current seems to go into other circuits looking for a ground and causes seemingly unrelated lights to turn on.
02-15-2010, 09:27 PM
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02-15-2010, 09:51 PM
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But I haven't tried it yet, but I am pretty sure that my lights won't turn on without a key inserted.
02-15-2010, 10:23 PM
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02-17-2010, 01:57 PM
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02-17-2010, 06:13 PM
#17
At least we were able to cut out other variables such as anything on the IGN or ACC relay circuit since they require the key.
The head and tail relay does not require the key... this is why you can see the brake and head lights without the car on.
Now we just need to figure out why one is tied into the other, and how its tied in after the brake switch since that is when the running lights turn on.
And its not like two wires on different circuits are touching each other or you would have blown a fuse.
Let me stare at some more electrical diagrams and try to figure out how else this is possible.
And just to clarify... its only the running lights coming on, right?
None of the other "front" lights or side markers?
Last edited by Jon316G; 02-17-2010 at 06:20 PM.
02-17-2010, 06:47 PM
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LOL... damn...
At least we were able to cut out other variables such as anything on the IGN or ACC relay circuit since they require the key.
The head and tail relay does not require the key... this is why you can see the brake and head lights without the car on.
Now we just need to figure out why one is tied into the other, and how its tied in after the brake switch since that is when the running lights turn on.
And its not like two wires on different circuits are touching each other or you would have blown a fuse.
Let me stare at some more electrical diagrams and try to figure out how else this is possible.
Attachment 151802
And just to clarify... its only the running lights coming on, right?
None of the other "front" lights or side markers?
At least we were able to cut out other variables such as anything on the IGN or ACC relay circuit since they require the key.
The head and tail relay does not require the key... this is why you can see the brake and head lights without the car on.
Now we just need to figure out why one is tied into the other, and how its tied in after the brake switch since that is when the running lights turn on.
And its not like two wires on different circuits are touching each other or you would have blown a fuse.
Let me stare at some more electrical diagrams and try to figure out how else this is possible.
Attachment 151802
And just to clarify... its only the running lights coming on, right?
None of the other "front" lights or side markers?
02-17-2010, 07:45 PM
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02-17-2010, 08:26 PM
#22
Well under normal conditions the rear side marker, taillight, the license plate light should not turn on with the brake light.
But these are on the same circuit as the running lights after the TNS (TAIL) relay.
If they do turn on, then you might have a bridged connection like GeorgiaBII mentioned above
If not... then we'll go from there...
But these are on the same circuit as the running lights after the TNS (TAIL) relay.
If they do turn on, then you might have a bridged connection like GeorgiaBII mentioned above
If not... then we'll go from there...
Last edited by Jon316G; 02-17-2010 at 08:45 PM.
02-17-2010, 09:40 PM
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To the best of my knowledge it's the only place the circuits are in the same location. There are also less common causes such as worn insulation to consider. But I'm a fan of check the easy stuff first.
Oh BTW have you installed anything in the car lately? audio equipment? Or other things screwed down? I've seen a poorly placed screw nail a wiring harness and cause fun issues before too.
Oh BTW have you installed anything in the car lately? audio equipment? Or other things screwed down? I've seen a poorly placed screw nail a wiring harness and cause fun issues before too.
