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weird issue: stepping on brakes, activates headlights-on feature

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Old 06-05-2011, 11:03 PM
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Default weird issue: stepping on brakes, activates headlights-on feature

and to go into deeper detailes, recently, ive been running into a few electrical gremlins. mostly with the stereo system.

but now its gone a bit deeper. its been 2 days now since ive noticed the issue. everytime i step on the brakes, the cluster dims as if i were turning on the headlights. now when i turn off the car, its starting to make the warning sound of when you leave the headlights on, when i step on the brakes.

at first i thought it was my headunit, but after pulling out everything, the issue still occurs. i just finished checking the battery itself and i think its about to go out. also, the + terminal and post is full of acid corrosion (which will be cleaned in the AM). can these two issues be causing the problems?
Old 06-06-2011, 09:15 AM
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what does the wiring look like behind the radio? its always a good idea to check all the fuses under the hood and under the dash if you havent already
Old 06-06-2011, 09:38 AM
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The battery terminal being like that will cause problems, more then likely that will fix it if its cleaned up
Old 06-06-2011, 09:41 AM
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This should be in the electronics section. You're back feeding the parking lights when u press the brakes. Start by taking off your brake/parking light bulbs in the rear. And see if it still does it. If it does then u are giving the parking light circut 12v through your brakes some how. If it doesn't then ur rear bulbs may need to be changed and or propelry installed.
Old 06-06-2011, 04:15 PM
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thanks for the tips...also, for the reminder...i totally forgot that the passenger rear taillight was removed and installed during a dent day. im assuming when he re-installed the tail light harness, the plugs might have been switched.
Old 06-06-2011, 04:42 PM
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The battery being that way won't do that. You have a short to power somewhere. If your connector switch doesn't work, try looking up the wiring diagram and look at the easily visible parts of it.
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