Bert,
I think the relay was under the rear seat.
You can buy special paint on "wiring" to fix the grid.
I can't remember what it is called, but you can find it easily on the net.
It's about $20 for a ridiculously small bottle, but I used about 1.5
bottles on the back window of my 78 Bus.
Cheers, dave
--
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Enough sunlight reaches the Earth *every* hour to meet the world's
energy demand for an entire year.....so, what do we do with it?
On Sat, 17 Oct 2009, Bert Knupp wrote:
Volks,
The previous owner of my '70- beetle disconnected the rear defroster,
leaving a black wire in black spaghetti tubing dangling under the car, and
no visible connection up front at the fuse box. The little toggle switch is
under the dash, and it seems to be okay, though not connected to anything.
I'm guessing it's a grounding switch for a relay.
Who knows the correct factory routing for this wiring circuit? My schematic
shows a relay, though none is present up front in my car. I'll assume it
draws coil power from a #15/54 circuit somewhere.
What's the correct original wiring and routing for the rear-window
defroster? I'm guessing I'll need to thread a new front-to-back wire (1.5
mm?) parallel to the main harness. I need to figure out where my orphan
black wire comes from -- and goes to. Do I pull #30 power from my voltage
regulator's battery terminal?
The printed wire grid on the glass passes cursory visual inspection -- no
obvious breaks -- but I haven't put a meter to it yet. Does anybody know
what the proper (disconnected) resistance for it ought to be?
You can send me stuff off-list at [email protected], if you'd like.
Bert Knupp
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