Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

right brake light

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Old Feb 19, 2002 | 01:23 AM
  #1  
mattRS's Avatar
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From: Plano, TX
right brake light

whenever my headlights are on, my right light stays as bright as it would be if i were hitting my brake? could it be a grounded wire? brake control switch?
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Old Feb 19, 2002 | 07:02 AM
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
bulb is in backwards or just the wrong one.
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Old Feb 19, 2002 | 04:25 PM
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just making sure i am reading this right...take out the bulb, turn it halfway around, and put it back in? it is the righ tbulb b/c i used the same stock number blub on my other light and it is fine.
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Old Feb 19, 2002 | 08:27 PM
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deadbird's Avatar
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Oddly enough, yes.

It is possible to but a bulb in backwards. What happens when you do that is, the bulbs have 2 elements in them of different brightness (note the 2 tabs on the bottom. When inserted the wrong way, the brighter one is now getting power with the headlights.

One way to check w/o the pita of taking the back apart again is have someone look at the tails while depressing the brake pedal (lights off). If one is dim & the other (normal working one) is normal, the one is in backwards. The reason it's dim is the brake is now powering the lower wattage element (because it's in backwards).
Hope that makes sense.
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