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9/20/17 6:52pm - Original Message: '82 Brake lights stopped working'
Shawnee2
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Cherryville, NC - USA

Vette(s):
82 Collector

Joined: 1/10/2011
Posts: 78
So suddenly my brake lights have stopped working.  Checked the fuses and bulbs and all good.  Turn signal and tail lights work fine.
 
Here is what I know so far by looking at the wiring diagrams:
- Brake switch appears to be working.  Checked and I have voltage on both sides of the switch once the peddle is depressed.  12v on the white wire going to the connector for the directional switch in the column once depressed
 
- On the green and yellow wires going to the back, I have 12v once I depress the brake peddle on the main connector at the steering column coming from the directional switch.  I do not have 12v at the bulb socket in the rear to turn the brake lights on.
 
Once I turn on the directional switch, the voltage at the main connector on the steering column will fluctuate accordingly with the direction selected.  The same happens at the bulb socket for the corresponding direction.  I still do not have 12v on the other side to turn on the brake light.
 
So the brake lights and turn signals are powered from the same wires coming from the directional switch.  So what am I missing, why do I not have brake lights if I am getting 12v at the main connector and my turn signals are working.
 
Is this something in the switch assembly in the steering column?  Are there just two wires connected to the brake switch as it is hard to get up under there to see.
 
Just a thought, I should be able the jump the white wire to either the yellow or green wire and the brake light should light up when I depress the peddle.  If so, than that points towards something in the column directional switch that is defective. If they don't, I'm going to shoot it and put it out of it's misery or just have a stiff drink.  Decisions, decisions, lol..
 
Thanks in advance for your help.


|UPDATED|9/20/2017 3:52:10 PM (AZT)|/UPDATED|
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9/21/17 9:19pm - Reply: 'Re: 82 Brake lights stopped working'
stingrayjim jr Lifetime Member
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SHELBYVILLE, TN - USA

Vette(s):
1976 L48 auto

1978 L82 4speed

1994 LT1 6speed

Joined: 7/5/2002
Posts: 3934
think you are on the right track,after looking over the wiring diagram its probably in the turn signal switch...if you have voltage in the white wire going up through the steering column to the turn signal.... 



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StingrayJim
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Stingray's '76                             StingrayJr's '78                           Lil Red '94

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9/21/17 10:07pm - Reply: 'Re: 82 Brake lights stopped working'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Brake light signal does go thru the turn signal switch. The turn sig switch separates the two circuits(brake/turn sig) to keep the front turn sig lights from lighting up when you press the brake pedal. If I read the original post correctly, you've pretty well narrowed it down properly.....looks like the turn sig switch is the culprit.  Ouch

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