turn signal and hazard light problem

[esde]

I've been going through this bus that had sat for 20 years, converting it to 12 volts, cleaning contacts, repairing poor crimp repairs and checking the wiring against the factory diagrams..
So far it's been pretty simple, and successful. I've used the Wolfsburg West flasher and hazard relay, and followed their instructions. With the key on, hazards work, turn signals work. Turn the key off, and the 3 wire flasher buzzes. With the key in the off position, if I turn the hazards or turn signal back on, it works and the buzzing stops. Here is a video showing this nonsense:

Link

One clue that I've found watching it:
Key on, hazards on, the big red light flashes out of sync with the turn signal light in the speedometer.
Key off, hazards on, the big red light is flashing WITH the turn signal light..

So, what does it mean? On a whim I disconnected the blue wire that goes from the flasher to the turn signal indicator, and the buzzing stopped, and the flashers work (except the one in the speedo). So, it seems the issue is between the speedometer light and the big red hazard light, but they all go through the hazard relay, and that wiring is according to the diagram. Help please, I've got a damned kink in my neck from trying to look under the dash.

SD
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[pig-pen]

I just rewiered the whole turn signal hazard system on my DC

Which year have you got? Its pretty simple with a flasher relay and another 2 contact relay for the hazards as in the '63 USA wiring diagram.
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1954 L227 Type 113
1964 L31 Type 265

[esde]

65 deluxe
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[pig-pen]

same relays and wiring as mine then....

so...

the turn signal speedo light comes from your flasher relay.

the big red light comes from the emergency light SWITCH. any of the tabs.

does that help?

try this... as standard the turn signal relay and the hazard relay share power... both from #8 fuse. try giving the hazard relay its own power from a fuse that does not need the ignition to be on, then your hazards will work without the key in which is a good thing in my book. maybe that will stop the buzz???

from what I worked out the hazard and flasher relays work by switching each other on and off as they go... does that make sense? thats why the red light and the turn indicator go opposite to each other...

I guess I may be telling you stuff you already know.
_________________
1954 L227 Type 113
1964 L31 Type 265

[esde]

After a little more work and hunting:
The wires from the turn signal switch all go where they are supposed to. I've traced the wires to and from the turn signal flasher and hazard relay. They connect as the diagram shows (almost, more about that in a minute.)
Here is the diagram I have printed and taped to the inside of the windshield

and here is the flasher circled

it shows power in, which also then jumps over to the hazard relay. Then there is power out to the signal switch, which also splits to feed the hazard switch
There is a ground, and a terminal for the blue turn signal indicator wire.
On my bus, the blue wire is crimes to the spade connector with wire that goes to the turn signal switch (black-white-green).

The Wolfsburg West flasher has three terminals, a ground, power in, and out.
My connections are as the instructions say, though there is no mention of the blue wire. As it's crimped with the same connection as the power out, they just went together. I'm pretty sure this is where my issue lies. I guess another call to WW is in order tomorrow

Separately, I have a loose wire end, and cannot find where it used to call home, maybe someone can help? To the left of the speedo pod, there is a short all black wire that traces to the interior light switch. It is not the wire with the purple trace that feeds the wiper switch. I've stared and stared at the diagram, and under the dash, but still see no obvious place for it. Ideas?

SD
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[BarryL]

Last time I looked there was not an accurate '65 wiring diagram. Has someone added that one? '65 had some unique things. What is the diagram you are using? Is that the one called "created by bus owner"?

[esde]

[pig-pen]

I would say ditch that 3 prong WW relay... and get any 4 prong 12 volt flasher relay. The wire it up as it should be. Thats what I did... and mine all works.

Should be over at the workshop later, will pm you some pics perhaps.
_________________
1954 L227 Type 113
1964 L31 Type 265

[BarryL]

[esde]

[telford dorr]

1965 turn / brake:

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'71 panel, now with FI
'Experience' is the ability to recognize a mistake when you're making it again - Franklin P. Jones
In theory, theory works in practice; in practice, it doesn't - William T. Harbaugh
When you're dead, you don't know you're dead. The pain is only felt by others.
Same thing happens when you're stupid. - Philippe Geluck
More VW electrical at http://telforddorr.com/ (available 9am to 9pm PST)

[esde]

[BarryL]

I hope I didn't confuse you. Both signal and emergency should be powered all the time on a '65. You don't want the key on the run the emergency or you could fry your points and severely heat up your coil.

Is yours wired like telford dorr posted and is that the same wiring diagram you already had on your wall?

[esde]

Same diagram that he posted. It's still not completely accurate for a (or my) 65. I understand the points issue, and have already have an ignition circuit kill switch. It's not a great permanent solution, but will do for now.
SD
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[pig-pen]

ok... so quick question... I have rewired my turn and hazards last night, as the above diagram, to the far right fuse...

But they only work with ignition on. I take it that means my ignition switch is wired up all bad? although looking at ti it makes absolutely no sense whatsoever.... its a direct line from the battery.

confused.
_________________
1954 L227 Type 113
1964 L31 Type 265

[BarryL]

[BarryL]

[pig-pen]

Ok... so all has been good with my reconstructed turn signal / hazard set up... until now...

well, actually a while ago the dash turn signal warning light stopped working. I just thought it was still a 6v bulb... and I need to replace it someday.

then, a few weeks ago when turning ignition off the light went double time and the relay too..clcikclikcclikcckilclclclclclc... really fast. A panicked twiddle of the turn switch and the hazard switch seemed to make it stop. I thought nothing more of it, gremlins or something. But my bulb was obviously ok, but still not working when driving around..

Then, just the other day the bulb did start working... and everything was good... but when I stopped and turned ignition off again the gremlin was back, relay going crazy and light flashing double time. Any use of the turn signals or hazards stopped it, but when all off it came back. I disconnected the bulb wire from the relay. Obviously that stopped it.

A bit of further investigation, pulling the bulb holder out and crudely earthing it to chassis with a wire held onto it resulted in good operation, all fine and correct... so... does this simply mean the bulb holder is not getting a good earth in the speedo?

apologies for the rambling post, had a lot of post work home-brew.
_________________
1954 L227 Type 113
1964 L31 Type 265

[Who.Me?]

[BarryL]