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Old 10-10-2003, 02:56 AM   #1
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Default Electrical Gremlin

edit.. i got the sockets figured out... now... my problem is that when i have no lights on and hit the brake the parking/fog lights turn on... and when parking lights are on the 3rd brakelight is on.... any ideas?
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Old 10-10-2003, 05:16 AM   #2
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*bump*
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Old 10-10-2003, 09:57 AM   #3
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Default Re: Electrical Gremlin

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edit.. i got the sockets figured out... now... my problem is that when i have no lights on and hit the brake the parking/fog lights turn on... and when parking lights are on the 3rd brakelight is on.... any ideas?
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Old 10-10-2003, 10:00 AM   #4
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Uhhhhh....what did you do? When did this start? Who'* on first?
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Old 10-10-2003, 10:02 AM   #5
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What'* on second??
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Old 10-10-2003, 12:10 PM   #6
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i did... NOTHING... i noticed it last night when driving home, hit hte brakes and the gauges got brighter...... cant seem to figure it out... could it be a bad park/neutral brake interlock switch??? when hitting the brakes i can hear a audiable "CLICK" inside the car as the lights come on........
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Old 10-10-2003, 01:59 PM   #7
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Quote:
Originally Posted by FiReDeViL
i did... NOTHING... i noticed it last night when driving home, hit hte brakes and the gauges got brighter...... cant seem to figure it out... could it be a bad park/neutral brake interlock switch??? when hitting the brakes i can hear a audiable "CLICK" inside the car as the lights come on........
Do you feel anything gently tugging on your leg, by any chance??

:P
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Old 10-10-2003, 02:17 PM   #8
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Default Re: Electrical Gremlin

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Originally Posted by FiReDeViL
edit.. i got the sockets figured out... now... my problem is that when i have no lights on and hit the brake the parking/fog lights turn on... and when parking lights are on the 3rd brakelight is on.... any ideas?
Sure: you probably have a bad ground in one of your brake light sockets. You might also have a bad (or wrong) bulb in one of those sockets, too.

What'* happening is that current on your brake light circuit is managing to double back through your taillamp circuit in search of a ground path. It illuminates everything along the way when it does that, though at lower brightness since the brake lamps and taillights are running in series when this happens. The only place on the car where brake-light and taillight circuits come together is at the bulb sockets, where they share a common ground. If the ground path fails, current in one circuit doubles back through the other.

Put your taillights on and get out and walk around. If one brake bulb is obviously shining brighter than the others, it'* either stuck in the socket backwards and shorting the two circuits together (only the brake filament lights up), or it'* a completely-wrong bulb altogether, such as a single-filament 1156 bulb whose center contact is shorting together the two socket base contacts.

If everything looks more or less normal, leave the taillights on and have an assistant step on the brake. Any taillight that goes out instead of getting brighter is your culprit, since both tail and brake circuits are now hot, and a bulb relying on one circuit to provide the ground path for the other will go out when both circuits are live at the same time. If the offending socket has a good bulb in it, then its ground connection is broken.

If none of the above pans out, get back to us.
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Old 10-10-2003, 02:38 PM   #9
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Damn. I wish I understood electricity like you do!!
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Old 10-10-2003, 05:13 PM   #10
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Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by FiReDeViL
i did... NOTHING... i noticed it last night when driving home, hit hte brakes and the gauges got brighter...... cant seem to figure it out... could it be a bad park/neutral brake interlock switch??? when hitting the brakes i can hear a audiable "CLICK" inside the car as the lights come on........
Do you feel anything gently tugging on your leg, by any chance??

:P
haha... very funny :P
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