Date: Fri, 9 Oct 2015 22:40:44 +0000
Reply-To: Jim Felder <jim.felder@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jim Felder <jim.felder@GMAIL.COM>
Subject: Re: Help me diagnose and fix no brake lights
In-Reply-To: <OF08CE3B94.10B7957C-ON88257ED9.007BA2A8-88257ED9.007BAAA2@rfan.com>
Content-Type: text/plain; charset=UTF-8
Very good!
Jim
On Fri, Oct 9, 2015 at 5:30 PM Pat Spragge/RFAN <Pat.Spragge@rfan.com>
wrote:
> This looks good...
>
> http://www.e38.org/understanding%20euro%20wiring%20diagrams.pdf
>
>
> *Pat*
>
>
>
> From: Jim Felder <jim.felder@GMAIL.COM>
> To: vanagon@GERRY.VANAGON.COM
> Date: 10/09/2015 03:26 PM
> Subject: Re: Help me diagnose and fix no brake lights
> Sent by: Vanagon Mailing List <vanagon@gerry.vanagon.com>
> Let us know if you find that list.
>
> Jim
>
> On Fri, Oct 9, 2015 at 5:25 PM SDF ( aka ;jim lahey' - Scott ) <
> scottdaniel@turbovans.com> wrote:
>
> > that reminds me ..
> > somewhere I found, online, a whole list of 'DIN' standards for wiring
> > diagram symbols and such.
> >
> > this list also tells what numbers are used in terminal naming ..1 is
> > always ground,
> > 15 is always key on power, etc. Very useful list.
> >
> > also that the very beginning of the electrical section of Bentley I think
> > there's a list of symbols.
> >
> >
> > On 10/9/2015 11:40 AM, Jim Felder wrote:
> >
> > Regarding scott's observation that it takes more pressure on the pedal
> than
> > you think to operate the brake lights—I cut a 3/4 inch dowel that jams
> very
> > tightly between the underside lower steering wheel and the brake pedal.
> > It's there when you want it, not when you don't, and it puts considerable
> > pressure on the system. Five minutes on full down is plenty enough to see
> > if your connections are weeping brake fluid, another benefit.
> >
> > Also Scott's observation that the Bentley diagrams require a lot of
> study,
> > that's true too. You need it right there as you look and look and look.
> It
> > would help to know what all the symbols are, maybe that's in there but I
> > didn't find it but ended up figuring it out.
> >
> > That 4-pin connector that red-black goes through that goes through the
> > firewall--it has four wires coming in and its mate going to the under
> dash
> > harness only has three wires. Go figure why they dead-ended that one
> wire.
> >
> > Jim
> >
> > On Fri, Oct 9, 2015 at 4:12 PM vw_van_fan_Mark <madvws@cox.net> <
> madvws@cox.net> wrote:
> >
> >
> > Only 80-84 vans have the brake failure warning setup. These use 3 wire
> > switches to supply the signals to the dash warning module and the rear
> > brake lights. 85-91 vans use 2 wire switches, only for the rear brake
> > lights.
> >
> > For some reason new switch quality seems low and the supply of new 2
> > wire switches is even lower.
> >
> > Mark
> >
> >
> > SDF ( aka ;jim lahey' - Scott ) wrote:
> >
> > re this brake warning light module K ...
> > .................
> >
> > Obviously the swtiches , one or both I imagine, turn on the brake lights.
> > the 'other function ' is for a legally required brake failure warning
> >
> > light
> >
> > in this system I'm pretty sure that if there is a significant difference
> > in pressures between the two circuits
> > ( like say a rear wheel cylinder is leaking badly ) ..
> > the two brake light switches tell this info to the module ..
> > the module sees 'no pressure in one side' compared to the other
> > circuit. thus turning on the warning light .
> >
> >
> >
> >
> >
>
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