All,
Thanks for all of the feedback. I have checked all of the fuses with a
meter, and all is good. I have discovered the hazard switch is semi hosed,
and on principle I refuse to pay $50 for a new one from Moss/VB, so I will
be bypassing that. I will let everyone know if i fix
it this weekend or if i get stuck I will post again.
Thanks
-Rick
On Fri, 4 Aug 2000 paul.hunt1@virgin.net wrote:
> Both turn signals and brake lights are powered through the 2nd fuse up in
> the 2- or 4-way fuse block, but if this had failed a number of other
> circuits like all the electric instruments and reversing lights would also
> be out. The brake lights and turn signals use separate green wires right
> back to the fuse block, it could be bad connections here. A Lucas 35amp
> fuse has a 17amp load rating and a 35amp blow rating.
>
> According to my diagrams a North American 71 has hazards, and the most
> common cause of turn signal failure in a car with hazards is the hazard
> switch. The hazard switch disconnects the turn signals when the hazards are
> on, and reconnects them when they are off, but only if the switch is working
> properly. You can check this by bridging the two green wires on the back of
> the hazard switch. If it is the switch it can sometimes be temporarily
> fixed by flicking the switch on and off a few times, or more permanently by
> dismantling and cleaning it. Failing that check for 12v on the green and
> light-green/brown wires on the turn flasher to determine whether the problem
> is in the feed, the flasher, or the wiring up towards the turn switch.
>
> The brake light problem could be the switch, the green feed to the switch,
> or the green/purple from the switch to the 4-way connector in the boot.
> Look for 12v on the green side of the switch (ignition on) and the
> green/purple side of the switch (ignition on and pedal down) to see which
> way to go.
>
> You might like to have a look at the web site below for individual
> schematics - select 'Spanners', 'Electrics' and 'Schematics'.
>
> PaulH
> http://www.mgb-stuff.org.uk
>
>
>
> ----- Original Message -----
> From: Rick Wagner <wagner@fuse.net>
> To: <mgs@autox.team.net>
> Sent: Thursday, August 03, 2000 10:35 PM
> Subject: Electrical issue
>
>
> > Ok.....I know the Lucas electrical systems cause many headaches, so prior
> > to me cleaning every connector and tracing wires I figured I would ask a
> > few questions. First I have a 71 MBG Roadster. Headlights/Taillights/side
> > markers and reverse lamps all work fine. However, the Break lights and
> > Turn signals do not work at all. I have checked the Fuse and that is fine.
> > Does anyone have any idea what it could be? What are the first 3 or 4
> > things I should check?
> >
> > Thanks
> >
> > -Rick
> >
> > --
> >
> >
> > "We don't know who we are
> > until we see what we can do"
> >
> >
>
--
-----------
Rick Wagner, CCNA ZoomTown.Com a Broadwing Company
Sr. Network Engineer Fuse Internet Access
wagner@fuse.net http://www.fuse.net
"By the time a man realizes that maybe
his father was right, he usually
has a son who thinks he is wrong"
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