Date: Fri, 9 Oct 2015 12:49:35 -1000
Reply-To: "SDF ( aka ;jim lahey' - Scott )" <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "SDF ( aka ;jim lahey' - Scott )" <scottdaniel@TURBOVANS.COM>
Organization: Cosmic Reminders
Subject: Re: Help me diagnose and fix no brake lights
In-Reply-To: <CAFnDXk2ZvtT_LyFOCWEJE_GRULcefSfCxJaEYhRHLa1A+aYFXw@mail.gmail.com>
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it was amazingly difficult to google
" DIN wiring standards' or whatever I put.
in all of 1.06 seconds this pops up ..
http://www.bosch-automotive-tradition.com/media/en/automotive_tradition_1/teile_1/switches/downloads_3/klemmenbezeichnungen.pdf
you maybe no have google ????
you could/should search yourself some ...about half a dozen interesting
things popped up ...all related to this topic.
More than that even.
S.
On 10/9/2015 12:26 PM, Jim Felder wrote:
> 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 <mailto: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> <mailto: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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