Date: Sat, 6 Sep 2003 13:14:06 -0400
Reply-To: maurio11@COMCAST.NET
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: David Maurio <maurio11@COMCAST.NET>
Subject: Archive info - Tachometer installation
In-Reply-To: <a05210608bb7ebed0c288@[203.167.180.16]>
Content-Type: text/plain; charset="US-ASCII"
I've thrown this together from a bunch of different postings, it may be
useful to whoever is compiling info for the new archive compiliation...
Some discrepencies remain as to whether the new wiring order starts with the
85 models or with the 86 models...
===========================================================
From the olden days, here are details of the wires that must be moved on the
14 pin
connector to use a tach instrument cluster in pre 1986 analog clock dash.
(Much thanks to Mark Drillock, David Beierl, Andrew Grebneff)
According to the Bentley, the general wiring diagram for '86 Vanagons is
separated by VIN
number but both have the tach wire run all ready in place between the coil
to the instrument panel connector (T14/9). You can check
easily by looking closely at the ignition coil. There will be a whitish
plastic connector plugged in to it. It should have either 1 or 2 green
wires. If it has 2, the second one is for the tachn and this wire runs
forward up into the dash. The other place to check is the 14 pin
connector to the instrument cluster. If it has a green wire on pin 9
then you should be good to go.
=========================================================
Here's a circular list. First column is where the wire used to be in the
connector.
Second is where it goes. Third is where the displaced wire needs to go.
It's convenient to know that immediately when you have wires squirming all
about.
So for example, in the first two rows you would take wire #3 move it to
position #1,
then take wire #4, move it to position #2, then move the wire that was in
position #2
to position #3... and so on...
80-84 85+ which goes to 85+
3 1 none (1 was vacant)
4 2 3 (cut and splice as below)
5 3 1
Old terminal 5 goes to ground. It is jumpered inside the old panel to old
terminal 2,
which provides a ground for the 4-way flasher's pilot light. No, I can't
imagine why
they did it that way. (!) Anyway, splice the lead that used to go to pin two
into the
one that used to go to pin 5, and run the pair to pin 3.
None None 2
7 5 3 (see previous note)
6 6 6
8 7 5
9 8 7
Tach 9 8
14 10 13
13 11 14
x 12 none
(High oil pressure except'85 which has none.
Ground to keep buzzer from going off, or make more elaborate arrangements)
10 13 11
11 14 10
Old pin 12 goes to a connector under the dash and stops.
You can splice in your tach wire and use this female terminal to go into pin
9
(it was the glow plug indicator for Diesels).
====================================================
'83.5 and '84 Vanagon waterboxers are below. (stock)
----------------------------------------
pin | color of wire
------------------------------------------
1 | skip
----------------------------------------
2 | brown (ground jumper to flasher)
-----------------------------------------
3 | blue/grey
------------------------------------------
4 | blue/white
------------------------------------------
5 | brown
------------------------------------------
6 | yellow/red
------------------------------------------
7 | red (pink) CLOCK
------------------------------------------
8 | black/purple
------------------------------------------
9 | black (use this for Tachometer. run green wire from terminal 1 on
coil)
------------------------------------------
10 | blue/black
------------------------------------------
11 | blue/green
-------------------------------------------
12 | red/white
-------------------------------------------
13 | blue
-------------------------------------------
14 | red/blue
-------------------------------------------
'85- '91 Vanagon waterboxers
-------------------------------------------
pin | color of wire
-------------------------------------------
1 | blue/grey instrument lighting
-------------------------------------------
2 | blue/white hi beam indicator led
------------------------------------------
3 | brown ground (2 brown wires jumpered off)
-------------------------------------------
4 | skip
-------------------------------------------
5 | pink (red) clock power
-------------------------------------------
6 | yellow/red temp gauge
------------------------------------------
7 | purple/black fuel gauge
------------------------------------------
8 | black +12 (for temp,fuel,tach,leds)
------------------------------------------
9 | green tach from coil, need to add this on pre 85
------------------------------------------
10 | red/blue turn signal led
-------------------------------------------
11 | blue alternator led
-------------------------------------------
12 | skip (except on 2.1 oil pressure high switch/yellow)
------------------------------------------
13 | blue/black oil pressure
------------------------------------------
14 | green/blue OXS led (use this for glow plug led on diesels)
-------------------------------------------
Most of these wires are present but in the wrong pins on pre 85 dashes. Move
the wires to the right spot to use the 85 and later tach clusters. The
unused white/red (old pin 12) wire can be cut down to a couple of inches and
used in pin 9 where you then attach a green wire that you must run from the
ignition coil where another green wire is already connected. Diesels use the
white/red though so these instruction are not exactly right for them.
Even non-tach dashes from 86 on have this wiring color and signal order. On
these nothing need be done to add a tach except swap the clusters.
David / NJ
85 Wolfsberg Westy "Beatrix"
http://home.comcast.net/~maurio11/index.htm
