Electrical Question

[trihartsfield]

1982 original diesel that had some kind of bigger VW gas swapped into it.

Now trying to sort out some wiring issues.

The light switch/instrument panel light resistor has three Grey/Blue wires. One orginates from the #58 spot and it has a grey wire along with it. The grey wire goes to S2 on the fuse panel

The other two grey/blue wire orginates from the 58b location.


In the Bentley it looks like 58 goes through the resistor to 58b. Then it looks like one of those grey/blue wires should go from 58b in the Inst Panel Light Resitor to the T14 connector at the number 3 spot (T14/3). Then there is a grey/blue wires should that goes to track 80.

Track 80 goes to the Emergency flasher warning light to 58b location. However there is no wire in the white connector for a wire to go:

Also the Bentley shows a grey/blue wires to 58b to the rear defog switch however there is no wire in the white connector.

In the Bentley track 80 and 47 are both part of the 58b on the resistors.

The three grey/blue wires that either terminate or initiate at the Inst panel resistor in the first picture is what I have a question on.

How are those wired together with either 58 or 58b track?

Please be patient I am just starting to learn how to read a wire diagram.
_________________
1971 Transporter-SOLD
1982 Westy Will grow up into a TDI

[MarkWard]

I think you are doing fine, actually better than many reading the diagrams. I have found they are not 100% accurate. The diagram above does indicate the grey blue wire goes to the cluster bulbs and a side marker light. I haven’t had my coffee yet, but that is a mistake. I believe there are 3 cluster bulbs. It’s also not unusual to find empty slots in molded plug connectors, so don’t get hung up on that.

This will bump your thread to the top and there are a couple other members that are more familiar with wiring in Vanagons. Also, look at similar years, sometimes there are corrections in later years.

[crazyvwvanman]

The diagram with the 3 leds connected together has a labeling problem.
The words " side marker light-R" should have an arrow pointing up to the left.
Those words apply to the led in circuit track 52 and not to any of the 3 connected leds.
The words wouldn't fit in the empty space they belong in so they were put in a near space instead but the pointing arrow was left out so the result is misleading.

Mark

[trihartsfield]

So one of my pictures didn't upload.

Here are the three unconnected wires, all grey/blue, that I am not sure where they should be connected.

It looks like the 58 location should be connected to T14/2 however the other 58b wires I am not sure.

Chris
_________________
1971 Transporter-SOLD
1982 Westy Will grow up into a TDI

[Wildthings]

It looks like the one wire you have circled is White/Blue and is not part of the 58b circuit.

The 58 circuit feeds power to the resister that supplies the 58b circuit but otherwise is independent of it.

None of these have anything to do with the emergency flasher lite, when two wires cross in the diagram they are not connected unless there is a dot at the intersection.

I am not sure what the one little gap in the one drawing means????

[kamzcab86]

[trihartsfield]

[trihartsfield]

[kamzcab86]

[crazyvwvanman]

The switch pin 58 wire you need is the grey one that turns on the tail lights and running lights when headlight switch is on.
It feeds to the fuse panel for the 2 fuses for left side and right side lights.

The switch pin 58b grey/blue wires are for the dimming adjustable back lighting of the various dash stuff.

I don't know what the second wire, white/blue on your pin 58 is meant for, perhaps unused or added by someone to bypass a burned out dimming rheostat on headlight switch in the past.

Be warned that your year has NO FUSE for the 58b wires and also that white/blue is connect to pin 58 before any fuse and should be treated with extra caution for that reason.

Mark

[trihartsfield]

Ok so the defrost switch and the instrument light resistor each have a slot that is labeled 58b (the white plug) do not have a wire/connector. Is that where the each of the blue wires should be attached?

Or do they both get connected to T14/3 connector?

If they get connected to the individual switch then where does the T14/3 wire get connected.

_________________
1971 Transporter-SOLD
1982 Westy Will grow up into a TDI

[trihartsfield]

[crazyvwvanman]

The headlight switch is the power source for the 58b circuit.
All of the gray/blue wires fan out from there to various light bulbs in the dash.
Since there is no fuse it became a known problem in early vans to have melted wires and melted headlight switches if a short to ground occurred on one of the lights.

Starting in 85 Vanagons VW added a fuse to the end of the fuse panel and fed that fuse from headlight switch 58b and then all the wires fan out from the fuse to the various bulbs.
In 86+ vanagons the fuse was mounted to the top of the later fuse panel.

I hesitate to say much about the 14 pin connector wires without knowing which version of instrument cluster you have.
It is common for the clusters to get swapped between vans and then the wires to the 14 pin connector may have to be moved to different pins.

Vanagons from 80-83 had a certain basic 14 pin layout and a very major change occurred to the pin layout from 85-91 model years.
The 84 model year had both layouts but mostly used the earlier one unless a tachometer was fitted.
There can be a wire or two different between 80-83 vans but nothing dangerous afaik.

Mark

[trihartsfield]

[Wildthings]

[Vanagon Nut]

[crazyvwvanman]

Post some closeups of the cluster for ID.

Yes, adding an inline fuse to the output of headlight switch pin 58b is a good idea.
Like it shows on the 85 diagram.

(note: 85 diagram is close to what you have except for the T14 pins which may be nearly all wrong numbers if your T14 is still wired for an 82 cluster)

Mark

[kamzcab86]

[crazyvwvanman]

The circled flasher switch wiring shows the bulb IS connected to the dash illumination circuit coming from headlight switch 58b.
There is a resistor shown to reduce the bulb voltage, then passing through a "normally closed" contact of the switch and on to the bulb to dimly light it.
When the flasher switch is turned on that 58b connection is removed and the bulb instead gets direct full power from the flasher circuit to blink it brightly.

Mark