Date: Tue, 3 Dec 2013 20:35:21 -0500
Reply-To: Steve Cotsford <cotsford@AOL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Steve Cotsford <cotsford@AOL.COM>
Subject: Re: electrical mystery
In-Reply-To: <CAB2Rwfg-GZXJbxOWME6js8M-Hpmr8QpXNKxnH1msmT3kjKDRsA@mail.gmail.com>
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Thank you guys. Clearly I will have to delve deeper. I have already noticed that the oil pressure light is flashing on and off at the same speed as the turn signals and dash lights. Also , the turn signals and dash lights stop flashing if the lights are on either in park position or headlight position. I can still hear a clicking however which comes from behind the glove box and the oil pressure light still flashes. Also, no matter what I do, the starter motor will not operate. I am not familiar with how to access stuff in the Vanagon yet,
so I am studying Bentleys pretty closely. I have to find out how wire 30 gets its power, therefore wire 50. Steve
On Dec 3, 2013, at 7:31 PM, Neil N wrote:
> Hi Steve.
>
> P. 97.122 shows a small gauge grey/black wire from ign. sw. Su to the
> seat belt warning relay. AFAIK, Su is activated when key is inserted.
>
> FWIW, my '88 has a 4 pin ECU relay so I generally use the '87 wiring
> diagrams for reference. In this case though, it appears that the above
> grey/black wire is the same.
>
> If it were me I'd trace that wire back from the ign. switch connector.
> See where it terminates. As for fuel pump power, have you tried
> bypassing the fuel pump relay (as per Bentley test) to see if you then
> get 12V + at the fuel pump connections? Am thinking that if there
> might bypass any alarm or disabling system and obviously mock-up
> things as if engine was running.
>
> Neil.
>
> On 12/3/13, Steve Cotsford <cotsford@aol.com> wrote:
>
>> Hi, I bought this '88 model Vanagon back in April.
>
>> I have a fuel pump to install. I do however have a mysterious (to me
>> anyway) electrical issue. If I insert the ignition key, all the turn
>> signals and dash lights start flashing and so far I have not found a way to
>> stop this. All the dash switches are in the off position. Clearly there is
>> a security system that I am ignorant of and I am not going to make any
>> progress until I have the upper hand in this. The electrical system seems
>> to be fine otherwise although I have not succeeded in getting power to the
>> fuel pump connections. Probably because a system is making the turn signals
>> and dash lights flash. All the lights work properly otherwise. The
>> wipers work although there is a missing relay and it only works on full
>> speed and will not park properly.
>> I am a retired mechanical engineer and have rebuilt several engines, gas and
>> diesel, converted cars, drive VW tdi cars and a Land Rover converted to
>> 300tdi, possess a Fluke meter and I am not usually a rookie. However if
>> someone could point me in the right direction to get started on this one, I
>> would be very appreciative. Many thanks, Steve
>
>
> --
> Neil n
>
> Blog: tubaneil.blogspot.ca
>
> '88 Westy http://tinyurl.com/c8rlw6p
>
> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>
> Vanagon VAG *Gas* inline-VR Engine Swap Group:
>
> http://tinyurl.com/d7gd5ej
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