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Re: [Mgs] A few electrical things stopped working...77 MGB

To: "Tom McLaughlin" <tmcl98@yahoo.com>, <mgs@autox.team.net>
Subject: Re: [Mgs] A few electrical things stopped working...77 MGB
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
Date: Wed, 20 May 2009 13:24:28 +0100
All those *except* the horn are on a single fuse, the horn is on a separate
fuse.  Both fuses are in the fusebox that should be screwed to the inner wing
on the right-hand (facing forwards) side.  The horn fuse should be the bottom
one with brown wires on the front and purple on the back, the other items
should be on the 2nd fuse up with white wires on the front and green wires on
the back.

However both fuses feed other tings as well, so if these are working normally
it isn't the fuse or its holder, although it could be one of the two spade
connections on the purple and green side.

The bottom fuse feeds the interior and boot lights and headlamp flasher as
well, so if these don't work, or they go out when you press the horn button,
then it is the fuse or holder.  If it is only the boot light that doesn't work
or goes out with the horn button, then if there are two separate wires on the
two spades on the fusebox it could be one of those spades.  If the two purple
wires are in a single connector then it won't be the fusebox at all which only
leaves the 4-way bullet connector with three purple wires in the mass by the
fusebox where the rear harness joins the main harness, which could also be the
cause even if the two purple wires are separate.

The second fuse up feeds the wipers, washers, heater fan, brake lights and
reversing lights.  If any of these are working again it isn't the fuse or the
holder.  Again there could be two green wires in a single connector at the
fusebox, or two separate spades.  If the former and any of those circuits are
working then again it isn't the fusebox.  The first thing that is common to
gauges and blinkers is a 4-way bullet connector behind the dash with four
greens in it, but that would also be affecting the wipers and heater fan.  If
either of those are working then you have two separate problems, which can
always be the case anyway.

PaulH.


  ----- Original Message -----
  Late
  last year, a few things stopped working....the blinkers, the tach, the temp
  guage, the horn, the fuel guage.
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