Turn signal switch wiring in 1969 bug

[KSKI]

Replaced my turn signal switch and need to know what wires to connect- specifically I have a Red with no compatible wire to connect it with- thank you
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My VOLKSWAGEN DOES IT --- AGAIN

[bnam]

Have you checked the wiring diagrams in the technical section?

[runamoc]

[KSKI]

The one I ordered from partsgeek actually had a red wire attached- but I noticed on the original signal that the PO had snipped it off
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My VOLKSWAGEN DOES IT --- AGAIN

[ashman40]

The '68-'70 turn signal switch is relatively simple.

There are two brown wires for the dimmer switch at the base of the turn signal lever. The solid brown goes to a ground point. The brown/white goes to the "S" terminal on the dimmer relay.

The turn signal switch is made of three (3) wires.

black/green/white - INPUT from the flasher relay
black/green - OUTPUT to right side turn lamps
black/white - OUTPUT to left side turn lamps

The newer replacement switches come with an extra set of three grey wires for European cars that need an extra turn signal switch circuit for side lamps (non-blinking). You can see from runamoc's pic, the left side switch has the extra three contacts, but the wires have been removed. For US-vehicles, these extra wires can be wound up and set aside, or cut and removed.

Where does your red wire run? My guess would be it is one of the dimmer switch wires? OR one of the spare grey wires.
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AshMan40
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'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[KSKI]

Ok thanks got that! Now I'm directing my attention to the fuel sensor gauge-
I have one black sheathed brown wire running from tank to speedometer - gas needle drops to E midway - any recommended test for this?
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My VOLKSWAGEN DOES IT --- AGAIN

[runamoc]

[Cusser]

Once out of the tank, the sending unit can be checked for ohms resistance throughout its movement. Should be gradual change with no open spots.

I just replaced the fuel sender in my 1970, in my resurrection thread.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

[fightclub]

are the ohms readings from a fuel sender in bugs linear? i had to "tune" a fuel sender for my falcon and it was a pita since it wasnt linear. (not hijacking the thread, just bringing up a troubleshooting point)
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1964 Ford Falcon Sedan
1970 Volkswagen Beetle (autostick)
MH-60R Seahawk

[KSKI]

Finished wiring turn signal switch but overlooked one- question I don't want to fight taking it and putting in the rear seat so could I just connect the wires with the battery hooked up?
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My VOLKSWAGEN DOES IT --- AGAIN

[60ragtop]

just lift up the seat and take off the neg cable no need to take the seat out
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Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986

[bush5150]

Your sending unit may not be bad. Here's a quick and easy check to see if it's the sending unit or the Fuel Gauge Vibrator/Voltage Stabilizer (on the back of the instrument cluster).

The fuel gauge circuit has three components. The gauge, the voltage stabilizer (on back of instrument cluster), and the fuel sending unit (on the tank).
1- You need a 12v source to the gauge, via the speedo bulb thin black wire. It's the black wire that goes to the Voltage Stabilizer.
2- Look at the two nuts on the back of the gas gauge. They often come loose causing intermittent gauge ops.
3- Ground the brown sending unit wire momentarily and the gauge should go to full. This test splits the possibility in defective parts down the middle depending on what happens here. If it goes to full, then your gauge and the Voltage Stabilizer are good and your fuel sender unit is broken. If not, then the opposite, the problem is the gauge or the Voltage Stabilizer. Quick easy test.

I had similar issues with mine. Sometimes my gauge would say half on a full tank, register correctly, or not work at all. What I did on mine was take off the Voltage Stabilizer and clean the contacts (they were pretty corroded).

[KSKI]

I did try the grounding test and the gas needle topped at full- so I put in another sensor switch and I still don't get any fuel gauge readings??
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My VOLKSWAGEN DOES IT --- AGAIN

[KSKI]

Speaking of wiring - I have some issues

Notice in third pic the brown wire running from fuel tank sensor- I put in new sensor but still no needle movement- ground tested the wire and fuel gauge topped out at full.
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My VOLKSWAGEN DOES IT --- AGAIN

[KSKI]

Caught my attention- how do you connect 4 wires to the #1 fuse?
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My VOLKSWAGEN DOES IT --- AGAIN

[runamoc]

[ashman40]

[KSKI]

Ashman- I asked partsgeek about the red wire- they will get back to me--I need an ID please- the double ground wire in one pic and the small metal box in the other pic--thanks----also I tried running a ground wire from the fuel sensor cap to a dedicated ground but still no needle movement in fuel needle

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My VOLKSWAGEN DOES IT --- AGAIN

[ashman40]

[KSKI]

Was inspecting the signal switch when with the key off I started the car by turning the signal arm????Now the starter doesn't work no click even
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My VOLKSWAGEN DOES IT --- AGAIN