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kyleader
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Joined: February 08, 2011
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Location: CA
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 Posted: Thu Jan 10, 2013 12:57 am Post subject: Be a hero: Help identify two wires! |
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Well after pulling out my steering wheel to put a new grommet in, as well as paint it, the labels I had strategically place don each and every plug commited 80%.
So: I have 2 wires coming off the steering wheel harness hat I have no clue where they go...
One is that ribbon-type wire, and the other is an all red wire (kinda short).
I also found a open plug that runs to the headlights that I have a hunch one goes to...
What I know: all blinkers work, headlights dont turn on, stereo works, didn't try to crank her over... Note that my turn signals, and my headlights are not grounded (will do tmrw AM). Which makes me question how in the world the turn signals are working of they are not grounded??  But thats besides the point, i'm just trying to place these last two wires:
Any and all help is appreciated! I'll be looking through the wiring diagram (1970 Standard).
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kyleader
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Relyt
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| Posted: Thu Jan 10, 2013 8:12 am Post subject: |
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Your turn signal bulb is grounding to the housing which is grounding to the fender which is grounding to the body which is connected to your battery ground.
A fickle ground but it may work sometimes.
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ashman40
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| Posted: Thu Jan 10, 2013 8:39 am Post subject: |
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You must be color deficient like me
Only one of those wires you have circled is RED (the bottom 4.0mm^2 wire). The rest are brown wires.
In the European wiring scheme:
Red = Constant 12v+ (battery)
Brown = ground / earth
I suspect that the brown wire coming from the steering column is for the head light dimmer. It could also be the one that runs to the horn?
Where does that other brown wire with the rectangular junction go to? If it runs to the "S" terminal of the headlight dimmer relay, then that wire is for toggling the hi/lo beams.
Test the brown wire coming from the steering column for ground while you pull on the turn signal stalk. If the brown wire is grounded when you pull and <open> when you release, then it is the meant for the dimmer relay "S" terminal.
If that doesn't work, test it for ground while you press on the horn button. If it grounds, then this is the horn wire you highlighted that runs out the left of the steering column in the wiring diagram. It should connect to the horn (-) terminal.
I'm not sure what the copper wire is, but it might be the ground wire for the dimmer relay. Try grounding this copper wire to the chassis and re-run the dimmer relay test.
FYI, if your turns signal housing is loose and not connected to ground, it is still possible for the turn signal bulb to ground through the parking lights circuit. When the turn signals are flashing, are there any other lights like the speedo illumination lamps flashing as well? This could be where it is grounding.
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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!} |
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kyleader
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| Posted: Thu Jan 10, 2013 9:11 am Post subject: |
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To be honest I am colorblind, and working at night with a bright LED doesn't help anything either. I do beleive that wire off the steering wheel column is brown.
The dimmer worked last night as well. I'm gunna ground the lights and see if that copper ribbon wire is for the headlights. The horn idea may very well be true, but where does that connect, all the way to the horn? I have a harness that reaches down towards the horn so maybe I overlooked where it could plug in on top?
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kyleader
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| Posted: Thu Jan 10, 2013 9:14 am Post subject: |
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So, if that is indeed a brown (ground), it can only be th eone that runs to the speedo, the one that goes to the horn, the one that grounds the horn (i already know that one is grounded on my steering wheel) or the one that goes to E1 (what is E1??)?
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mrbigmax
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Luft kühl
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| Posted: Thu Jan 10, 2013 5:21 pm Post subject: |
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The foil ribbon type wire is what activates the ignition key warning buzzer.
It should be connected to the brown wire that goes to driver side door switch. |
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ashman40
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| Posted: Thu Jan 10, 2013 9:18 pm Post subject: |
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| kyleader wrote: |
| So, if that is indeed a brown (ground), it can only be th eone that runs to the speedo, the one that goes to the horn, the one that grounds the horn (i already know that one is grounded on my steering wheel) or the one that goes to E1 (what is E1??)? |
The "brown" one that goes to the the E1 (headlight) switch?? The wiring diagram only has a #30 "red" wire running between the headlight switch and the ignition switch. This #30 wire is the source of 12v power for the ignition switch. If it were disconnected you would not be able to crank the engine nor would the engine run.
There are at least three brown wires that should be passing through that grommet:
Horn ground wire. In '70, this connected to the upper steering column bearing. This turned the steering column and the steering wheel into part of the horn grounding circuit.
Dimmer switch wire. This is connected to the dimmer switch in the turn signal lever. The other end of the switch is connected to ground (see below). The other end of this brown wire connects to the dimmer relay "S" terminal. When the switch is closed the dimmer relay "S" terminal is grounded. This causes the relay to energize and swap the output on the dimmer relay.
Ground. This is the ground for the headlight dimmer switch. In the wiring diagram this is the brown wire that connects to the shared ground point with the speedo.
Trace out the wires and figure out which one is not connected.
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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!} |
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kyleader
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| Posted: Fri Jan 11, 2013 12:36 am Post subject: |
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I tried plugging in the ribbon wire to the into that VW plug that runs to the headlights, and the brown to the door switch, and my headlights work great, dimmer works, and the horn isnt plugged in yet, nor ar emy door switches really. I suppose my 50% try worked out?
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