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timmy2 timmy2 is offline
ROW '78 911 Targa
 
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Join Date: Jul 2011
Location: Salem, OR
Posts: 10,217
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Black wire wire in the square plug is power, there is a white, a white/yellow and a white/green that are the fan speed return paths to the speed position sliders.
Check for continuity for each of the 3 speed control wires to the sliders is all you can really do.
The black power wire is constant.
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Dennis
Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 12-11-2020, 10:03 AM
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