Fuse #8 Blows!

[borninabus]

i have a "new" van it's an 87 auto.
i have some things to do to it.
but what is holding me up right now is the the right side marker (parking) lights are out.
signals & brake lights work.

fuse #8 continually blows.
ALL the lights on the right side are disconnected and the spades insulated.

a wiring diagram:

there is a bigger view in the gallery.

the circled, solid GY wire gets hot if use a 20A fuse
the jumper over to the left side does not.
the GY/R wire that comes off the same terminal on the headlight switch does not get hot.

i guess what i am asking is for some help interpreting the current flow so i can find what seems to be a dead short in the right side marker lights.

58b works on this circuit so i have it disconnected @ the switch as well.

i am new to this world of current flows & multi-point connectors so help me out if you can
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88 Van WBX, A/T - 13 JSW TDI 6M/T - 2012 Touareg TDI Sport

[IdahoDoug]

I have no help for you whatsoever. But I was looking at your Avatar thinking "that's pretty funny - looks like a primitive boxing machine that wildly swings boxing gloves around. No, looks like boxing gloves on what looks like the top of a coffee grinder with a few extra arms. Um, no....wha - ahahahahahahahaha!" That's a good one...

DougM
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1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader

[Terry Kay]

You have the tail light bulb & the front turn signal bulbs both out, and the fuse still blows?

You've had the front turn signal socket off of the Van, and the contacts & the wires on the back of it are all OK?

You've also had the tail lamp backing off out and checked out the plug on it?
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T.K.

[syncrodoka]

IdahoDoug that icon is for the boxer motor(horizontal opposed design). That is the crankshaft with gloves being the cylinders.

Have you taken off the headlight switch and verified that it hasn't melted(don't laugh it happens sometimes)

[IdahoDoug]

Syncro,

Yeah, I got it and thought it was REALLY funny. Would be fun on a T shirt..
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1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader

[crazyvwvanman]

I would first suspect a rear trailer light hookup gone bad. In any case, look at the bottom of page 97.112 for number 106. Follow that straight up and find the label T7/6 about midway up. That stands for connector T7 pin 6. This is in the engine compartment wiring box. There are two round 7 pin connectors in there. Find the one with the right colored wire on one of the pins and unplug it. Then see if the fuse still blows with T7 unhooked.


Mark

[borninabus]

[Terry Kay]

After you get done taking a look to see if you have a trailer wiring harness, if the spices are OK, there might be one more place to look for a short.

Remove the rear side marker lights & see if they are OK and not rusted up & shorting out the running lights.

Right off the top of my head I think they are wired into that circuit.
I don't have the Bentley here to run down their wiring path, but when the tail lights are on, so are the side marker's.
Might be a possibility.
You didn't mention you had them disconnected too--
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T.K.

[Jake de Villiers]

[borninabus]

[syncrodoka]

[borninabus]

[Terry Kay]

How did you miss that rats nest of superior wiring?

I think that your on the way to having a solution.
Not a quick one by any means, but problem looks like it's gonna be solved.
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T.K.

[borninabus]

[Terry Kay]

A drop cord when diving into dark places helps a bunch--
I figured you had such a standard issue lamp when groaping behind the bulb sockets & connector's.

That wad of poor wiring connection & splices would be pretty hard to miss.

I'd cut it all out & replace it neatly with some new wire & heat shrink butt connector's to avoid any further problems down the road.

It truely amazes me how some folks butcher the heck out stuff like this and call it good---
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T.K.

[borninabus]

i found the problem in the right tail light harness:

it was heat damaged from either coolant (steam?) or the exhaust i assume.
so i soldered in the harness out of an 82 parts van.
wires all matched except a solid blue wire that ran through the 82 loom.

i now have all my running lights
but i don't seem to have any reverse lights

it's an A/T.
where should i start...?
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88 Van WBX, A/T - 13 JSW TDI 6M/T - 2012 Touareg TDI Sport

[thummmper]

I have the same thing-- exhaust leak and a hippie driving. wires were fried over the right muff to tail pipe-- gross short to ground

[ShultzRoadHouse]

Check your reverse bulbs first, then if you still have no lights remove the reverse switch on the drivers side transmission, remove the washer that it has on it and reinstall the switch. You should have reverse lights, it worked for me.
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ShultzRoadHouse
'81 AirCooled Westy RIP
'82 Westy w/ '93 Subaru EJ22
'71 Super Beetle w/ '75 AJ 1600
'12 Jetta

[mariusstrom]