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RE: Wiring question/ head light switch 69C

To: "'JAMES SCHULTE'" <schultejim@prodigy.net>, Mgs@autox.team.net
Subject: RE: Wiring question/ head light switch 69C
From: "Dodd, Kelvin" <doddk@mossmotors.com>
Date: Wed, 16 Jul 2003 08:50:55 -0700
James:

Someone has been mucking about and hooked up the purple wire to the wrong
switch.  

I'll lay a bet that your brake warning light test switch doesn't work
because it doesn't have a purple wire connected to it.


Headlight switch has:  
 
Brown: Unfused Power Feed
Red: 2 or even 3 running light leads (you get the extra connection, just in
case you wanted to have fog lights)
Blue: Head Lamp supply


The Brake Warning Light Test Switch has:

Purple:  Fused Feed to lamp
Black/White:  2 leads to Pressure Differential Switch 
Black:  Ground for Test Switch Function



The Brake Warning Light Test Switch is located just above the Headlight
Switch, so chances are something came loose and got reconnected incorrectly.

Kelvin.

                        






> Listers,
> I changed the head light switch on my 69 MGC Roadster today 
> and discovered the original had 4 wires attached to it, 1- 
> red 2- blue 3- brown 4- purple. The problem is the 
> replacement switch only has 3 posts. The wiring diagram I 
> have from the C manual only shows 3 wires and purple is not 
> one of them. What is the purple for? I tried the new switch 
> and everything worked front and back head lights tail lights, 
> liscence plate lights only exception was the front running 
> lights(turn signals did work). What is the purple wire for 
> and can I double it up on another post, and if so which post?
> TIA
> Jim
> 69C
> 70B 

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