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Author Topic: Heated rear window wiring  (Read 1283 times)
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GREENYORKIE
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« on: 17 May, 2011, 09:15:15 PM »

Slowly but surely I am making sense of the wiring loom on my Beta coupe but have stalled on the rear screen heater switch. there are 5 wires going to the switch coloured pink,black,red,yellow and white with black tracer. I have 12v at the red. None of my wiring schematics show a 5 wire switch. Can anyone throw any light on on the purpose of the other cables?
Thanks, David.
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Evo1 1992, Delta HPE HF 1998, Beta coupe 2000,1983.Audi TT. Delta HF Turbo,1988.
GREENYORKIE
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« Reply #1 on: 19 May, 2011, 08:49:18 PM »

I am a little further forward but still need some help. The yellow and white/black cables supply the bulb in the switch.The pink cable goes to the indicator bulb in the dash and the black feeds the rear screen.However I've no supply at the black or pink cables and am unsure how the relay is wired into the circuit. Anyone? 
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Evo1 1992, Delta HPE HF 1998, Beta coupe 2000,1983.Audi TT. Delta HF Turbo,1988.
thecolonel
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« Reply #2 on: 19 May, 2011, 09:54:49 PM »

As far as I remember :
Red    (pos +) into switch,
Black  (pos +) out of switch to HRW,
Pink    (pos +) out of switch to warning light
yellow and white/black  night illumination circuit
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GREENYORKIE
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« Reply #3 on: 28 May, 2011, 07:48:53 PM »

Thanks for the info Geoff, finally got power at the heated element but as the switch is a bit dicky will live without the light.
David.
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Evo1 1992, Delta HPE HF 1998, Beta coupe 2000,1983.Audi TT. Delta HF Turbo,1988.
thecolonel
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« Reply #4 on: 28 May, 2011, 08:01:44 PM »

I have a rocker switch from a late series if that's
any use.
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