The most often couse fore break light failure is:the switch at the break
peddle,or a dirty grown.If the lights work with turn signal on look for a dirty
grown.It cant hurt too change the switch;its cheep,even through year one.
----- Original Message -----
Sent: Saturday, February 05, 2005 11:51
PM
Subject: RE: IML: 67' No Brake Light
Issue...
The reason for this is that the brake light and hazard light
current is
routed through the turn signal switch on its way to the rear
stoplight bulb
filaments. The front hazard lights are not routed
through this switch. The
other lights you mention are totally
independent of the brake light and
hazard light circuits.
When the
turn signal switch is in the center position, the switch routes the
brake
light current to both sides of the rear stop lights. When the
turn
signal is set for a right turn, the switch opens the circuit to the
right
stop lights, and connects them to the flasher, but it keeps the left
stop
lights connected to the brake light circuit. Thus, it is
clear that the
brake light current must pass through the turn signal
switch. You can test
this function by using your $4 test light
to probe the wiring at the turn
signal connector, easily found on the
steering column harness near your left
knee cap. For what wire to
probe, refer to your FSM, or ask here, someone
will look it up for
you. If you find that the brake light circuit provides
12 volts into
the turn signal harness, but no 12 volts comes back out for
the rear light,
you've nailed the problem to the turn signal switch or the
wiring to
it.
These switches are a sore spot on these cars, most of us
have had to replace
them to get the turn signals to cancel after a turn, or
to stay on before a
turn, or to operate the cornering lights correctly,
etc. etc. It is not a
happy prospect, but you can do it yourself, if
you can find a new switch.
Also, NAPA sells a rebuilding kit for
these switches, for about 1/20th the
cost of a new one, but it is a nasty
job to install the kit. I've done it
both ways, a couple of times
each, and believe me, putting in a new switch
is the way to go!
Dick
Benjamin
-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx]
On Behalf Of
dardal@xxxxxxxxxxxxxxx
Sent:
Saturday, February 05, 2005 1:28 PM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject:
Re: IML: 67' No Brake Light Issue...
Although this is the last thing to
check, I think that a bad signal switch
can
cause loss of brake
lights. Don't ask why. If nothing else works, you will
need to
replace that signal switch in the steering column.
D^2
>
Notes:
> 1. All regular rear lights work when the headlights or parking
lights are
> on.
> 2. Left and Right turn signals function
correctly on both front and rear.
> 3. Hazard signals ONLY function in
the front! The rear ones do not flash.
>
> Request:
>
> Please provide me with some insight as to what I am missing here. I
have
> checked everything I can think of. The only thing I am not sure
about is
if
> the "Sentinel" system could have something to do with
it, somehow...
>
> Thanks,
> Cliff
>
>
>
>
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