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Re: No Brake lights, no signals either.

To: ejrussell@sprynet.com
Subject: Re: No Brake lights, no signals either.
From: Art Pfenninger <ch155@FreeNet.Buffalo.EDU>
Date: Sat, 1 Nov 1997 08:45:25 -0500 (EST)
        Any idea of what car the replacement brake light switch might be
from, I'd like to try a switch that lasts at least a year.
...Art

On Fri, 31 Oct 1997 ejrussell@sprynet.com wrote:

>       I don't mean to insult your inteligence so I will preface this by 
> saying: I spent an hour trying to figure out why the brake lights on my '60 
>MGA 
> wouldn't work before I took it for my first inspection way back in 1970. The 
> answer came when I asked my father for help. He stepped into the garage, 
>looked 
> at the car from 20 feet away and asked if I had turned on the IGNITION switch!
>       If that is not your problem, check the grounds. There is a black wire 
> for ground inside the right rear fender (wing). If your tail lights work that 
>is 
> probably not the problem...
>       Check the hydraulic brake light switch under the hood (bonnet). They 
> don't last forever. If you have 12 volts going into the switch (ignition ON) 
> connect the two wires at the switch together (temporarily). If the brake 
>lights 
> are now on (ignition ON) the circuit is OK and the switch is bad. It is a 
> standard US thread, I get replacements locally. I think the original has 
>small 
> screws to attach the wires, I made short jumpers to adapt to what I bought 
> locally. If you have 12 volts and connecting the two wires does not light the 
> brake lights then there may be a break in the circuit leading back to the 
>rear 
> of the car. Check the bullet connectors inside the right rear fender (wing). 
> Sometimes just disconnecting/connecting a few times will clean them. 
>       If memory serves (and it often doesn't lately - getting into OF 
> territory) the directional indicator gets it's power through the fuse box. I 
> think the wipers are on the same fused circuit - do they work? Pull the fuses 
> and clean the contacts with a small ink erasor or super fine sandpaper. I 
>have 
> even seen old fuses that look OK at first glance but don't pass 
>electricity...  
>       My experience is with a 1600 model. Since you mention a direction 
> indicator relay you must have a 1500 model. Looking at the wiring diagram, it 
> would seem that the brake light circuit does indeed go through the relay 
>unit. 
> Could that be your problem? Sorry, I don't have experience with the relay 
>unit.
>        P.S. The turn signals also need the ignition switch turned on.
> Good Luck, Eric
> Bridgewater, MA
> <ejrussell@sprynet.com>
> 


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